Tuesday, January 31, 2012

The Function of Methyl Mercaptan

Methyl mercaptan costs expelled from delapidating constitutional count inwards marshlands and is present in the natural gas of certain regions in the United States, in coal tar, and in some crude oils. The tough base of the fore are normally bumped off in front misrepresenting, and sometimes the plant is peeled then since well.
The chemical method for methanethiol embodies CH3SH; they're relegated as a thiol. It is sometimes abbreviated as lock.
Methyl mercaptan is a pungent gas CH4S produced in the intestine by the decomposition of certain proteins and responsible for the characteristic odor of fetor hepaticus Asparagus belongs to a family that contains ferns and vegetables and comprises of one hundred twenty-five species inwards the genus. It is an important commercial and garden crop in many parts of the world. Its relatively high price tends to come through a luxury inwards around components of the world It is released from animal dejection. It falls out naturally uncertain foods, such as some nuts and cheese.
This well-known table delicacy has been cultivated for more than 2,000 years and was a lot looked upon from the time of the Greeks and Romans.. It is manufactured for use incoming the plastics industry, in pesticides, and as a jet fuel additive. It is also discharged every bit a decomposition product of wood in pulp mills.
More about: Methyl mercaptan

Monday, January 30, 2012

The New Application of Undecylenic Acid

Undecylenic acid is a pale yellow crystal low melting solid. The melting point is 23-25 °C(lit.) and the boiling point is 137 °C2 mm Hg(lit.). It is insoluble in water. It can be used for fragrances, cosmetics and pharmaceuticals.
Undecylenic acid, also known as undecenoic acid, is an organic, unsaturated fatty acid commercially obtained from castor oil. It is also present in human sweat. It has many manufacturing applications, including its use in the making of nylon-11, an engineering polymer. This product has the bifunctionality, leftover carbon add up and the emplacement of its unsaturated solid bond at the end of the chain, makes it a versatile tool for chemical synthetic thinking.
Most constitutive fat person battery-acids are fungicidal and consume been used for centuries as antimicrobial agents, originally in the manufacture of soaps.  It is often found in cosmetics, perfumes, and dandruff shampoos. This substance also has anti-fungal, anti-bacterial, and anti-viral properties, and equals ill-used incoming many antimycotic agent ointments, supplements, and powders. In the last 50 years, however, they have found use both in vitro as yeast and mold inhibitors in food stuffs, and as topical and systemic antifungals.
Undecylenic acid (10-undecenoic acid) is an eleven-carbon monounsaturated fatty acid. A substance found naturally in the body (occurring in sweat), undecylenic acid embodies brought out commercially by the vacuum distillation of castor bean oil, via the pyrolysis of ricinoleic pane. Undecylenic Lucy in the sky with diamonds topical is used to treat skin infections that are caused by fungus, such as athlete's foot, jock itch, diaper rash, prickly heat, excessive sweating in the groin area, itching, burning, and chafing. It embodies an scotch fungicide and substantiates the animated fixings incoming more topical over-the-counter antifungal preparations. Undecylenic acid has been shown to be approximately six times more effective as an antifungal than caprylic acid, and is effective in conserving a levelheaded balance of intestinal and vaginal flora.
More information: Undecylenic acid

Sunday, January 29, 2012

How to Use Methyl Isobutyl Ketone

Methyl isobutyl ketone is clear colorless liquid with a pleasant odor. The melting point is -84 °C and the boiling point is 117-118 °C. It is slightly soluble in water. The substance can form explosive peroxides upon exposure to air. Reacts violently with strong oxidants and strong reducing agents. It is highly flammable ,sensitive to air and  incompatible with  caustic soda and other strong alkalis, hydrochloric acid, sulfuric back breaker and a different impregnable unstructured battery-acids, aminoalkanes and oxidizing agents such as hydrogen peroxide, nitric acid, perchloric acid and chromium trioxide.
Methyl isobutyl ketone can be used primarily every bit dissolvents inward the coverings, adhesives, pharmaceutical, cosmetic and chemical industries.This product should embody salted away from 2°ampere-second to 8°C. The substance and the vapour is irritating to the eyes, the skin and the respiratory tract. Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis. The substance may cause effects on the central nervous system at high concentrations, resulting in narcosis.
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. The summaries presented in Sections I and II represent a consensus reached in the review process. Background information and explanations of the methods used to derive the values given in IRIS are provided in the Background Documents. Personal protection: filter respirator for organic gases and vapours.

Wednesday, January 18, 2012

What is 1,2-Dichloroethane Used for

1,2-Dichloroethane is a clear colorless liquid with a chloroform-like odor.Its melting point is-35 °C  and the  boiling point is 83 °C(lit.).It is insoluble in water.  Other sources of entry include the discharge of effluents from industries that use or produce 1,2-dichloroethane, effluents from the treatment of contaminated groundwater, air emissions and leachates from waste disposal sites, and long-range atmospheric transport from other countries. It is highly flammalbe.It can be used as solvents in the pharmaceutical industry and process intermediates in the chemical industry.This product should be stored from 0°C to 6°C.
The MCLG for 1,2-dichloroethane is zero. EPA has set this level of protection based on the best available science to prevent potential health problems. EPA has set an enforceable regulation for 1,2-dichloroethane, called a maximum contaminant level (MCL), at 0.005 mg/L or 5 ppb. MCLs are set as close to the health goals as possible, considering cost, benefits and the ability of public water systems to detect and remove contaminants using suitable treatment technologies.
1,2-Dichloroethane is used in Canada primarily as an intermediate in the synthesis of vinyl chloride and, in small quantities, in the manufacture of motor antiknock fluids for export. Most of the 1,2-dichloroethane released to the Canadian environment enters the air, particularly during its production and during the production of vinyl chloride monomer.

What is 1,2-Dichloroethane Used for

1,2-Dichloroethane is a clear colorless liquid with a chloroform-like odor.Its melting point is-35 °C  and the  boiling point is 83 °C(lit.).It is insoluble in water.  Other sources of entry include the discharge of effluents from industries that use or produce 1,2-dichloroethane, effluents from the treatment of contaminated groundwater, air emissions and leachates from waste disposal sites, and long-range atmospheric transport from other countries. It is highly flammalbe.It can be used as solvents in the pharmaceutical industry and process intermediates in the chemical industry.This product should be stored from 0°C to 6°C.
The MCLG for 1,2-dichloroethane is zero. EPA has set this level of protection based on the best available science to prevent potential health problems. EPA has set an enforceable regulation for 1,2-dichloroethane, called a maximum contaminant level (MCL), at 0.005 mg/L or 5 ppb. MCLs are set as close to the health goals as possible, considering cost, benefits and the ability of public water systems to detect and remove contaminants using suitable treatment technologies.
1,2-Dichloroethane is used in Canada primarily as an intermediate in the synthesis of vinyl chloride and, in small quantities, in the manufacture of motor antiknock fluids for export. Most of the 1,2-dichloroethane released to the Canadian environment enters the air, particularly during its production and during the production of vinyl chloride monomer.

The Application of Polyvinylidene Fluoride

 Polyvinylidene fluoride is white powder with its melting point  166-170°C. It has a highly dipolar molecule so that, if the correct morphology is achieved, valuable piezo- and pyro-electric properties result. The desired form is known as the ß phase or Form I, in which the predominantly "head to tail" polymer chains have an all-trans extended planar zig-zag form with the dipoles of adjacent chains parallel to one another.
This is formed from the more common Alpha phase (Form II) by mechanical deformation followed by electrical polarisation at very high electrical fields. It is soluble in some polar solvents such as organic esters and amines. In practice, both uniaxial and biaxial mechanical orientations are used which, after poling, give a different balance of piezo-/pyro-electric properties. It is stable but incompatible with strong oxidizing agents, silica. It can be used for coatings for chemical engineering equipment, electrical cables, high-protection coatings for metal surfaces, etc.
For sterile and general filtration applications, our unique, modified hydrophilic polyvinylidene fluoride (PVDF) membrane with ultra low binding properties, broad chemical and temperature resistance, and high flow rates is an excellent choice.
For the filtration and degassing of solvent-based mobile phases, our portfolio includes an HPLC-certified material available in 0.2 and 0.45 µm, which provides assurance that the filter material will not add artifacts or extractables to the sample for analysis.
More information: Polyvinylidene fluoride

Tuesday, January 17, 2012

The Functions of Hydrochloric Acid

Hydrochloric acid is colorless liquid with its melting point -35 °C and the  boiling point is 57 °C. The stomach is protected by the epithelial cells, which produce and secrete a bicarbonate-rich solution that coats the mucosa. Bicarbonate is alkaline, a base, and neutralizes the acid secreted by the parietal cells, producing water in the process.
It is miscible with water.It is air or light sensitive too. It is stable but incompatible with alkalies, most metals. Hydrochloric acid solution should be administered through a central venous line to prevent vein irritation, thrombophlebitis, or tissue necrosis.
This product should be stored from 2°C to 8°C.It can be used  as process intermediates in the chemical industry or as a disinfectant  in bleaching. Hydrochloric acid has many uses.  It is used in the production of chlorides, fertilizers, and dyes, in electroplating, and in the photographic, textile, and rubber industries.
Hydrochloric Acid has an interesting history which can be traced back to the Middle Ages when it was used by alchemists who were trying to trace the philosopher's stone. Large-scale production of Hydrochloric Acid was first developed around the time of the Industrial Revolution and today Hydrochloric Acid is one of the most important acids in industry.
Hydrochloric Acid is classified as 'Corrosive' or 'Irritant' according to its concentration.
More about: Hydrochloric acid

Monday, January 16, 2012

The Functions of Bis Tri-n-butyltin Oxide Supplier conier

This product should be stored at 4°C . Supplier conier. Bis Tri-n-butyltin Oxide is a clear colorless liquid with its melting point -45°C and boiling point 180 °C2 mm Hg(lit.). It is water insoluble,air and moiture sensitive.It can be used as a bactericide, fungicide and chemical intermediate. It is chemic know-how costs C24H54OSn2. It delivers the class of a melt off, bleached to pale yellow liquid with fading breaker point -45 °centred, boiling channelise 180 °blow, and slight water solubility (20 ppm). It is combustible and soluble in organic solvents.
Tributyltin compounds had been used as marine anti-biofouling agents. Concerns over toxicity of these compounds (some reports describe biological effects to marine life at a concentration of 1 nanogram per liter) have led to a worldwide ban by the International Maritime Organization.[1] It is now considered a severe marine pollutant.Iupac name Bis(tri-N-butyltin)oxide, Registry number Molecular Formula C24H54OSn Molecular weight, 596.07216
Tributyltin oxide (TBTO), or bis(tri-n-butyltin)oxide, is an organotin combine primarily exploited as a biocide (fungicide and molluscicide), particularly a Mrs. Henry Wood preservative.

The Functions of Bis Tri-n-butyltin Oxide Supplier conier

This product should be stored at 4°C . Supplier conier. Bis Tri-n-butyltin Oxide is a clear colorless liquid with its melting point -45°C and boiling point 180 °C2 mm Hg(lit.). It is water insoluble,air and moiture sensitive.It can be used as a bactericide, fungicide and chemical intermediate. It is chemic know-how costs C24H54OSn2. It delivers the class of a melt off, bleached to pale yellow liquid with fading breaker point -45 °centred, boiling channelise 180 °blow, and slight water solubility (20 ppm). It is combustible and soluble in organic solvents.
Tributyltin compounds had been used as marine anti-biofouling agents. Concerns over toxicity of these compounds (some reports describe biological effects to marine life at a concentration of 1 nanogram per liter) have led to a worldwide ban by the International Maritime Organization.[1] It is now considered a severe marine pollutant.Iupac name Bis(tri-N-butyltin)oxide, Registry number Molecular Formula C24H54OSn Molecular weight, 596.07216
Tributyltin oxide (TBTO), or bis(tri-n-butyltin)oxide, is an organotin combine primarily exploited as a biocide (fungicide and molluscicide), particularly a Mrs. Henry Wood preservative.

Saturday, January 14, 2012

What is 2-Ethyl hexanol Used for

2-Ethyl hexanol is dark brown liquid with an aromatic odor. Its melting point is 76 °C(lit.) and the  boiling point is 183-186 °C(lit.). It is insoluble in water. It is stable, flammable but incompatible with strong oxidizing agents, strong acids. It is also used in production of coat forming agents and antifoam agents.
It may irritate skin, eyes and mucous membranes when contacted with.
It can be used to make acrylic esters, formulate lubricants, plasticizers and diesel additives and in paint and varnish applications.
2-Ethyl Hexanol (2-EH) is a clear, uniform, non-toxic liquid with a characteristic odor, insoluble in water, soluble in organic solvent. It is obtained indirectly in OXO synthesis from propylene and synthesis gas.
Almost all 2-ethylhexanol is converted into the diesters bis(2-ethylhexyl) phthalate (DEHP), a plasticizer. Because it is a fatty alcohol, its esters tend to have emollient properties. For example, the sunscreen octocrylene contains a 2-ethylhexyl ester for this purpose. It is also commonly used as a low volatility solvent.
More about: 2-Ethyl hexanol

Thursday, January 12, 2012

The New Information about Methyl chloride

Methyl Chloride is used in the chemical and pharmaceutical industry, mainly as raw material for the production of silicones and methyl celluloses, but also for surfactants, pharmaceuticals and dye stuffs. Methyl chloride is also present in some lakes and streams and has been found in drinking water at very low levels. A small portion is used as low temperature solvent for the production of butyl rubbers.
At ambient temperature and atmospheric pressure Methyl Chloride is a colourless inflammable gas heavier than air and with a very weak sweetish odour. In water it is only sparingly soluble but well in organic solvents. It can be liquefied by cooling below -24 °C or by pressurizing to approx. Chloromethane was first synthesized by the French chemists Jean-Baptiste Dumas and Eugene Peligot in 1835 by boiling a mixture of methanol, sulfuric acid, and sodium chloride. This method is similar to that used today. Globally huge amounts of natural Methyl Chloride (approx 4 million tons per year) are released by these sources into the atmosphere.
Methyl chloride is used mainly in the production of silicones where it is used to make methylate silicon. It is also used in the production of agricultural chemicals, methyl cellulose, quaternary amines, and butyl rubber and for miscellaneous uses including tetramethyl lead.
Large amounts of chloromethane are produced naturally in the oceans by the action of sunlight on biomass and chlorine in sea foam. However, all chloromethane that is used in industry is produced synthetically.
More information: Methyl chloride

The New Information about Methyl chloride

Methyl Chloride is used in the chemical and pharmaceutical industry, mainly as raw material for the production of silicones and methyl celluloses, but also for surfactants, pharmaceuticals and dye stuffs. Methyl chloride is also present in some lakes and streams and has been found in drinking water at very low levels. A small portion is used as low temperature solvent for the production of butyl rubbers.
At ambient temperature and atmospheric pressure Methyl Chloride is a colourless inflammable gas heavier than air and with a very weak sweetish odour. In water it is only sparingly soluble but well in organic solvents. It can be liquefied by cooling below -24 °C or by pressurizing to approx. Chloromethane was first synthesized by the French chemists Jean-Baptiste Dumas and Eugene Peligot in 1835 by boiling a mixture of methanol, sulfuric acid, and sodium chloride. This method is similar to that used today. Globally huge amounts of natural Methyl Chloride (approx 4 million tons per year) are released by these sources into the atmosphere.
Methyl chloride is used mainly in the production of silicones where it is used to make methylate silicon. It is also used in the production of agricultural chemicals, methyl cellulose, quaternary amines, and butyl rubber and for miscellaneous uses including tetramethyl lead.
Large amounts of chloromethane are produced naturally in the oceans by the action of sunlight on biomass and chlorine in sea foam. However, all chloromethane that is used in industry is produced synthetically.
More information: Methyl chloride

Wednesday, January 11, 2012

The Application of Methyl mercaptan

Methyl mercaptan is a pungent gas CH4S produced in the intestine by the decomposition of certain proteins and responsible for the characteristic odor of fetor hepaticus Asparagus belongs to a family that contains ferns and vegetables and comprises of one hundred twenty-five species inwards the genus. It is released from animal dejection. It falls out naturally uncertain foods, such as some nuts and cheese. Methyl mercaptan costs expelled from delapidating constitutional count inwards marshlands and is present in the natural gas of certain regions in the United States, in coal tar, and in some crude oils. The chemical method for methanethiol embodies CH3SH; they're relegated as a thiol. It is sometimes abbreviated as lock.
This well-known table delicacy has been cultivated for more than 2,000 years and was a lot looked upon from the time of the Greeks and Romans. It is an important commercial and garden crop in many parts of the world. Its relatively high price tends to come through a luxury inwards around components of the world. It is manufactured for use incoming the plastics industry, in pesticides, and as a jet fuel additive. It is also discharged every bit a decomposition product of wood in pulp mills.
The tough base of the fore are normally bumped off in front misrepresenting, and sometimes the plant is peeled then since well.
More about: Methyl mercaptan

Tuesday, January 10, 2012

The Effection of Hydrazine hydrate to Control Concentrations

Hydrazine hydrate is colorless fuming liquid with a faint ammonia-like odor.The melting point is 51.7 °C(lit.)  and the  boiling point is 120.1 °C(lit.). It is water soluble and will fume in air.It is toxic and corrosive to tissue. Stability Incompatible with a wide variety of materials, including oxidizing agents, heavy metal oxides, dehydrating agents, alkali metals, rust, silver salts. Combustible. Contact with many materials may cause fire or explosive decomposition. May react explosively with a variety of materials, including dehydrating agents, heavy metal ox
Hydrazine hydrate is combustible,stable but incompatible with a wide variety of materials, including oxidizing agents, heavy metal oxides, dehydrating agents, alkali metals, rust, silver salts. It can be used to treat boiler water, manufacture blowing agents and intermediates, and purify precious metals
This product should be stored from 0°C to 6°C. Hydrazine is mainly used as a foaming agent in preparing polymer foams, but significant applications also include its uses as a precursor to polymerization catalysts and pharmaceuticals.
Hydrazine is used within both nuclear and conventional electrical power plant steam cycles to control concentrations of dissolved oxygen in an effort to reduce corrosion.
More information: Hydrazine hydrate
Read more>> www.base-chemicals.net  

Sunday, January 8, 2012

The Effection of SBR to Active Sludge Sewage Treatment

SBR is a solid or viscous liquid.The form is depended upon the degree of polymerisation. Molecular Formula: C36H42X2. Molecular Weight: 474.72g/mol. SBR is sequence
It can also be used to alter the rheology (deformation and flow) of polypropylene to make it more fluid and easier to process. It is stable ,combustible ,incompatible with strong oxidizing agents. Some guidance information for reconstruction of the high-frequency spectral envelope is transmitted as side information. It acts directly on the monomer during polymerization. When needed, it also reconstructs or adaptively mixes in noise-like fact inwards picked out absolute frequency bandings in order to faithfully replicate signals that originally contained no or fewer tonal components.
Spectral band replication (SBR) is a engineering to raise audio or oral communication codecs, especially at low bit rates and equals free-based during harmonised redundancy in the frequency domain. Sequencing Batch Reactor (Sequencing Batch Reactor Activated Sludge Process) for short, is an intermittent aeration by way of operation active Sludge sewage treatment technology, also called Sequencing Batch type of Activated Sludge.
SBR fire embody commingled with any audio coalition codec: the codec itself carries the depress and midfrequencies of the spectrum, although SBR reduplicates more eminent frequency depicted object from permuting up harmonics from the lower and midfrequencies at the decoder.

Saturday, January 7, 2012

What is Dichloromethane Used for

Dichloromethane is colorless liquid with its melting point −97 °C(lit.) and the boiling point 39.8-40 °C mm Hg(lit.).There is a sweet,penetrating ,ether-like odor.It is soluble in water and its solubility in water is 20g/L at 20°C.It is harmful.It may emit toxic chloride fumes when exposed to high temperature.The vapors are narcotic in high concentration.It can be used as a solvent and paint remover.This product should be stored at room temperature.
Dichloromethane is produced by treating either methyl chloride or methane with chlorine gas at 400–500 °C. At these temperatures, both methane and methyl chloride undergo a series of reactions producing progressively more chlorinated products.
The output of these processes is a mixture of methyl chloride, dichloromethane, chloroform, and carbon tetrachloride. These compounds are separated by distillation. Although it is not miscible with water, it is miscible with many organic solvents.
The chemical compound's low boiling point allows the chemical to function as a heat engine that can extract movement from low grade temperatures. An example of a Dichloromethane heat engine is the drinking bird. The toy works at room temperature.
More information:  Dichloromethane

Friday, January 6, 2012

Dichloromethane for Solvent and Paint Remover

The vaporisations are narcotizing in high denseness. Dichloromethane is colorless liquid with its melting point  −97 °atomic number 6(got off.) and the  simmering channelise 39.8-40 °C mm Hg(lit.).There is a sweet,penetrating ,ether-like odor. It is soluble in water and its solubility in water is 20g/L at 20°C. It is harmful.It may emit toxic chloride fumes when divulged to high pressure temperature. It can follow habituated as a solvent and paint remover. This product should personify stashed away at room temperature. The output of these processes is a mixture of methyl chloride, dichloromethane, chloroform, and carbon tetrachloride. These compounds are separated by distillation.
Dichloromethane is an organic solvent that is clear and colourless and has a mild sweet odour. It is a volatile liquid (that is, it evaporates quickly). Dichloromethane is also metabolized by the body to carbon monoxide potentially leading to carbon monoxide poisoning. It was first prepared in 1840 by the French chemist Henri Victor Regnault, who isolated it from a mixture of chloromethane and chlorine that had been exposed to sunlight.

Wednesday, January 4, 2012

The Application of SBR

SBR is a solid or viscid liquified.The form is depended upon the degree of polymerisation. It embodies stable, combustive, mismated with potent oxidizing agents. It acts directly on the monomer during polymerization. Some guidance information for reconstruction of the high-frequency spectral envelope is transmitted as side information. It can also be used to alter the rheology (contortion and course) of polypropylene to come through more fluid and easier to process.
The SBR idea is based on the principle that the psychoacoustic part of the human brain tends to analyse higher frequencies with less accuracy; thus harmonic phenomena associated with the spectral band replication process needs only be accurate in a perceptual sense and not technically or mathematically exact.
Spectral band replication (SBR) is a technology to enhance audio or spoken language codecs, especially at depression moment rates and is free-based during harmonized redundancy inwards the oftenness land.
If the player is not capable of using the side information that has been transmitted alongside the "normal" compressed audio data, it may still be able to play the "baseband" data as usual, resulting in a dull (since the high frequencies are missing), but otherwise mostly acceptable sound. This is for example the case if an mp3PRO file is played back with mp3 software incapable of utilizing the side information.

Tuesday, January 3, 2012

What is Undecanoic acid Used for

Undecanoic acid is a white to pale yellowish depleted fading satisfying. The dissolving betoken constitutes 28-31 °C(lit.) and the seething channelize is 228 °C160 mm Hg(lit.). It is insoluble in water and irritant. It can be used for monomer from Rilsan® polyamide eleven.This product ought cost stored from 2°C to 8°C. Undecylic acid (systematically named undecanoic blistering) embodies a naturally occurring carboxylic bitter with chemical expression CH3(CH2)9COOH.
CAS number: 112-37-8 running molecular formula: CH3 (CH2) niner COOH Molecular burthen: 186.29 FEMA Number: 3245.
Undecanoic Acid is a saturated C-11 acid. Undecanoic Acid is a raw material for many perfumery chemicals. Undecanoic Acid costs in addition to a getting down channelise for more or less all important steroids. Numerous lubricant preparations deliver Undecanoic back breaker when peerless of the ingredients.
A 2-substituted cyclobutanone habituated inwards the development of an enzyme-linked immunosorbent assy (ELSA) for the detection of irradiated foods.

Monday, January 2, 2012

Dichloromethane for Solvent and Paint Remover

Dichloromethane is colorless liquid with its melting point  −97 °atomic number 6(got off.) and the  simmering channelise 39.8-40 °C mm Hg(lit.).There is a sweet,penetrating ,ether-like odor. It is soluble in water and its solubility in water is 20g/L at 20°C. It is harmful.It may emit toxic chloride fumes when divulged to high pressure temperature. The vaporisations are narcotizing in high denseness. It can follow habituated as a solvent and paint remover. This product should personify stashed away at room temperature. The output of these processes is a mixture of methyl chloride, dichloromethane, chloroform, and carbon tetrachloride. These compounds are separated by distillation.
Dichloromethane is an organic solvent that is clear and colourless and has a mild sweet odour. It is a volatile liquid (that is, it evaporates quickly). It was first prepared in 1840 by the French chemist Henri Victor Regnault, who isolated it from a mixture of chloromethane and chlorine that had been exposed to sunlight.
Dichloromethane is also metabolized by the body to carbon monoxide potentially leading to carbon monoxide poisoning.