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Chemical product and company identification Product name Supplier: Methyl Mercaptan : AIRGAS INC., on behalf of its subsidiaries 259 North Radnor-Chester Road Suite 100 Radnor, PA 19087-5283 1-610-687-5253 Product use Synonym: Synthetic/Analytical chemistry. 42.7°F (5.96°C) @ 70°F (21.1°C) = 24.7 Psia (170 kPa) Slightly N/A (Gas) Colorless gas with extremely unpleasant odor. odor: Vegetable oil, alliaceous, eggy, creamy with savory nuances. (1981). Brief exposure to lower concentrations may produce central nervous system depression and lung, liver, and heart congestion. Volatile Sulfur Compounds (VSC) Gases produced from gram (—) bacteria on tongue surface Responsible for 80-90% of oral malodor Primary Gases: Hydrogen Sulfide (HS) = Rotten Egg Smell Methyl Mercaptan (MM) = Feces Smell Dimethyl Sulfide (DS) = Cabbage/Gas Smell Did you know methyl mercaptan is associated with the smell of periodontal disease? * Repeated exposure may affect the blood cells causing anemia. 2-. methyl 3- (methyl thio) furan. Methyl Mercaptan (CH 3 SH) CAS 74-93-1; UN 1064 Synonyms include methanethiol, mercaptomethane, thiomethanol, methyl sulfhydrate, and thiomethylalcohol. "In another incident, a 19-year-old was exposed to greater than 10,000 ppm of methyl mercaptan for a few minutes. It is one of the main chemicals that cause bad breath and the odor of flatulence. 77, No. It is a natural substance found in the blood, brain, and other animals as well as plant tissues. Methyl mercaptan (CASRN 74-93-1; CH4S), also known as methanethiol, is a toxic, extremely flammable, colorless gas with a smell similar to rotten cabbage. "A 24-year-old male working in a sodium methyl sulfhydrate factory was found dead. 8. In 2001, a 24-year-old worker was found dead at a chemical factory with what tests showed were large quantities of methyl mercaptan in his liver, kidneys, lungs, blood and urine. Higher levels can cause dizziness, lightheadedness, coma and death. * Ethyl Mercaptan may damage the liver and kidneys. * Repeated or long term exposure to Ethyl Mercaptan may damage the red blood cells causing anemia. * Ethyl Mercaptan is a HIGHLY FLAMMABLE LIQUID or GAS and a DANGEROUS FIRE HAZARD. Its presence with bleeding gums suggests involvement in the induction and/or progression of gum disease. Density 1.72 g / cm3. Hepatic (liver) failure may give rise to a mousy or musty odor due to methyl mercaptan. The odor of methyl mercaptan is so strong that some people can can detect it … * Ethyl Mercaptan is a HIGHLY FLAMMABLE LIQUID or GAS and a DANGEROUS FIRE HAZARD. Bad breath, also known as halitosis, may go far beyond a tinge of garlic or onions. May cause liver and kidney damage. Large quantities of methyl mercaptan were detected in his liver, kidneys, lungs, blood, urine, and in the washout solution of his trachea. SECTION 6 - ACCIDENTAL RELEASE MEASURES . Pathology: The normal demethylating process is inhibited in liver damage which causes methyl mercaptan and dimethyldisulphide to be exhaled in breath and concreted in urine. It is a natural substance found in the blood, brain, and other animal as well as plant tissues. Nonflammable but supports combustion. Notes: a plant genus of the family apiaceae. Inhaling high concentrations of methyl mercaptan may also cause headache, vomiting, nausea, and unconsciousness. * Repeated or long term exposure to Ethyl Mercaptan may damage the red blood cells causing anemia. The present documentation is based on reviews of the toxico-logical data for the substance (Farr and Kirwin 1994, NL Health Council 1998). - liver damage prevents transformation of NH3 to urea ... methyl mercaptan: A colorless gas with a smell like rotten cabbage. - Avoid breathing dusts or spray mist. * Repeated or long term exposure to Ethyl Mercaptan may damage the red blood cells causing anemia. Very toxic by inhalation or skin absorption. Methyl mercaptan is always present in your body and in your urine and feces. I have itching especially at night or when I sweat. FL. Never attempt to lift a cylinder by its cap; the cap is intended solely to protect the valve. There Is a Gas Leak Within the System. body. Very toxic by inhalation. In 2001, a 24-year-old worker was found dead at a chemical factory with what tests showed were large quantities of methyl mercaptan in his liver, kidneys, lungs, blood and urine. Exposure controls "A 24-year-old male working in a sodium methyl sulfhydrate factory was found dead. IDENTIFICATION Methyl Mercaptan can exist as a gas, with a disagreeable odor like garlic, or as a white liquid. * Ethyl Mercaptan may damage the liver and kidneys. When ingested or inhaled, in addition to irritation of the membranes of the lungs and digestive tract, ethyl mercaptan may cause headaches, nausea, fatigue, muscular weakness, convulsions, and liver and kidney damage. Methanethiol (methyl mercaptan) or ethanethiol (ethyl mercaptan) is the odorant that is added by the natural gas companies to detect its leakage. Anaerobic breakdown of waste materials in municipal sewage treatment facilities. 7. It liquefies at 6 degrees C and is shipped as a liquefied gas (98 percent pure) under its vapor pressure. Animal studies have shown that small amounts of mercaptans can cause reversible coma andcanact synergistically with ammonia and fatty acids to enhance the toxicity of these substances.' Since the mixture of methyl mercaptan, H2 S, indole, and skatole caused the most extensive pathology of the experiment, including 80 per cent mortality to monkeys, it was … As a result, sulfur particles make … Methyl mercaptan is always present in your body and in your urine and feces. Foetor hepaticus is a feature of severe liver disease; a sweet and musty smell both on the breath and in urine. May cause liver and kidney damage. When ingested or inhaled, in addition to irritation of the membranes of the lungs and digestive tract, ethyl mercaptan may cause headaches, nausea, fatigue, muscular weakness, convulsions, and liver and kidney damage. Never insert an object (e.g., wrench, May cause liver and kidney damage. Individuals with pre-existing respiratory, cardiac, nervous system, or liver impairment may be more susceptible to exposure to methyl mercaptan. PubMed:Reversal of aflatoxin induced liver damage by turmeric and curcumin. * Repeated or long term exposure to Ethyl Mercaptan may damage the red blood cells causing anemia. The effects of body and tissue weights, gross metabolic performance, O2 consumption, systolic blood pressure, various blood parameters, and intestinal transit time associated with 3-mo exposures of young adult male rats to chemically verified concentrations of 2, 17, and 57 ppm methyl mercaptan vapor are summarized in this report.

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