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PDF Material Safety Data Sheet (Propane) H373 May cause damage to organs through prolonged or repeated exposure. Leakage and subsequent combustion . Vapours represent the most insidious of hazards. Methyl Mercaptan - an overview | ScienceDirect Topics Read the warnings in section 9. Its structure parallels that of ethanol, but with sulfur in place of oxygen.The odor of EtSH is infamous. DOT ID & Guide . CHRONIC HEALTH EFFECTS Three kinetic models, such as power‐rate law, the Mars and Van Krevelen model and the Langmuir‐Hinshel‐wood model were used . Section 5. Keeping pace with current trends in solvent production, this volume builds upon its previous edition with broader coverage of safe handling practices, health effects, physical properties, and chemical synthesis routes to some of the most important organic solvents used in the chemical and allied process industries. Vapour/air mixtures are explosive. Label elements Labeling according to Regulation (EC) No. Ethyl Mercaptan 67-56-1 50 ml/100 AG Min. The volume of an average bedroom with an 8' ceiling is about 1000 cubic feet, so one would be able to detect Search PubChem . 1272/2008 [CLP] Hazard pictograms (CLP) : GHS02 GHS07 GHS08 Signal word (CLP) : Danger Hazardous ingredients : toluene . Toxicological Profiles; ToxFAQs; Minimal Risk Levels (MRLs) Medical Management Guidelines (MMGs) ToxGuides ; More >> Newsletter. The human odor recognition in air appears at a concentration of 0.1 to1.0 ppb; the odor detection in air ranges from 2.1-6.6x10-10 to 4.6x10-4 mg/cu m and from 1.9x10-4 mg/L to 43.5 ppm in water. Therefore, OSHA is lowering its limit for ethyl mercaptan to 0.5 ppm as an 8-hour TWA. 0.2.1 SUMMARY OF EXPOSURE. EMERGENCY OVERVIEW: Health Hazards: Danger, may cause cardiac sensitization, asphyxiant gas, overexposure may cause depression, liquid material may cause frostbite and freeze burns. ATSDR • Health Effects 5 : Methyl Mercaptan . Skin contact. National Institutes of Health. * Pentane as n-Pentane 3. * Pentane as n-Pentane 3. NO open flames, NO sparks and NO smoking. Product and Company Identification Product Name Ethyl Mercaptan CAS Number 75-08-1 Parchem - fine & specialty chemicals 415 Huguenot Street New Rochelle, NY 10801 (914) 654-6800 (914) 654-6899 parchem.com info@parchem.com EMERGENCY RESPONSE NUMBER CHEMTEL Toll Free US & Canada: 1 (800) 255-3924 All other Origins: 1 (813) 248 . Hazardous Effects: Ss: 4 0 2. 1981). 8. PDF Gas Odorants - Safe Handling, Health, and Environment Subchronic inhalation studies with rabbits . LPG may also be supplied as straight propane or butane . Human volunteers exposed to ethyl mercaptan at 10 mg/m3 (4 ppm) for 5-10 days experienced a rise in olfactory threshold and altered taste reaction to bitter and sweet substances, periodic nausea, irritation of mucous membranes of the lips, mouth and nose, and fatigue. PDF SAFETY DATA SHEET - Airgas NO open flames, NO sparks and NO smoking. No odorant is effective 100% of the time. National Library of Medicine. What is LPG used for? Pro Tip: Not all . Leaking propane from underground gas lines may lose its odor as it passes through certain soils. May act as a narcotic in moderate concentrations. AMMONIUM PERSULPHATE 7727-54-. Sign up for Email updates: Toxic Substances . Gas/air mixtures are explosive. Over-exposure can bring on fever, cough, shortness of breath, double vision, a feeling of tightness and burning in the chest, dizziness, memory loss, tremors, difficulty swallowing and abdominal. May cause respiratory . Ethyl mercaptan 75-08-1 682 ppm (rat) Not available 2770 ppm, (mouse), 4H Likely Routes of Exposure: Eye contact. Related Pages. Potential acute health effects Date of issue/Date of revision:3/16/2017 Date of previous issue:No previous validationVersion:0.01 2/12. From Wikipedia, the free encyclopedia. Flammability hazards: Extremely flammable, forms explosive mixtures with air, may cause flash fire. Leading t he industry in : - Innovation - Experience - Safety - Reliability - Responsiveness Ethyl mercaptan Thioethyl alcohol: October 2004: CAS #: 75-08-1: UN #: 2363 EC Number: 200-837-3 ACUTE HAZARDS PREVENTION FIRE FIGHTING; FIRE & EXPLOSION: Extremely flammable. This island . What is LPG used for? Skin contact Direct contact with liquid propane can result in skin burns (frostbite . Reproductive Hazard * According to the information . The 'Substance identity' section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. To do this, Jim will use ethyl mercaptan's estimated odor threshold as . 75-08-1 . PubChem. THE SETTING Elcho Island is the most southerly of the Wessel group of islands which lie in the Arafura Sea to the north of the Northern Territory. Ethyl mercaptan may also cause narcotic effects, including loss of consciousness, respiratory depression, and cyanosis (decreased oxygen levels in extremities, causing lips and/or nails to turn a bluish color). Ethyl mercaptan is the preferred warning agent for propane. Methyl Mercaptan CAS RN: 74-93-1 . Potential acute health effects See toxicological information (Section 11) Indication of immediate medical attention and special treatment needed, if necessary Frostbite :Try to warm up the frozen tissues and seek medical attention. It is also used as a lighter fuel, as a refrigerant, as a propellant in aerosols, as a . These by-products are known to cause acute adverse health effects; therefore, when handling odorants one should maintain all the precautions applicable. Jim realizes that odor thresholds are imprecise measurements (because people naturally vary widely in their sensitivity to odors), but he just wants to get an approximate estimate of the size of the phone call zone. If ethyl mercaptan is spilled or leaked, the following steps should be taken: 1. (USCG, 1999) Reactivity Profile ETHYL MERCAPTAN reacts violently with calcium hypochlorite, May react vigorously with other oxidizing reagents. Flammability hazards: Extremely flammable, forms explosive mixtures with air, may cause flash fire. Effects on Respiratory System. Ethyl Mercaptan Version 1.8 Revision Date 2020-06-16 SDS Number:100000068740 1/15 SECTION 1: Identification of the substance/mixture and of the company/undertaking Product information Product Name : Ethyl Mercaptan Material : 1118972, 1111485, 1024772, 1086422, 1086423, 1021429, 1021431, 1021426, 1021430, 1021425, 1021424, 1024773, 1024771, 1024770, 1021427, 1026776, 1021428, 1104918 Company . Synonyms & Trade Names Ethanethiol, Ethyl sulfhydrate, Mercaptoethane CAS No. People with high chemical sensitivity are more susceptible to this disease. Details. UN Class or Division / Subsidiary Risks. Its structure parallels that of ethanol, but with sulfur in place of oxygen.The odor of EtSH is infamous. CAS number: 75-08-1. Ethyl Mercaptan is the odourant added to make LPG (propane) and natural gas smell like their distinctive aroma. EC number: 200-837-3. Closed system, ventilation, explosion-proof electrical equipment and lighting. Appearance / Odor . Leading the industry in : - Innovation - Experience - Safety - Reliability. Appearance / Odor . Health Effects of Exposure to Toxic Substances. HAZARDS IDENTIFICATION 3.1. Submit. is a colorless liquid with a distinct odor. *****€this€product€is€an€asphyxiant.€symptoms€include€respiratory€irritation, dizziness,€nausea€and€loss€of€consciousness.€in€addition,€exposure€to concentrations€above€2%€may€cause€a€general€central€nervous€sys (Redirected from Tris(2-chloroethyl)amine). CHRONIC HEALTH EFFECTS One common odorant is ethyl mercaptan, CAS No. Synonyms Ethyl mercaptan Recommended Use Laboratory chemicals. due to its low vapour pressure, ethyulene glycol takes a very long time to evaporate. Some substance identifiers may have been claimed confidential, or may . Effects on Respiratory System. Keeping pace with current trends in solvent production, this volume builds upon its previous edition with broader coverage of safe handling practices, health effects, physical properties, and chemical synthesis routes to some of the most important organic solvents used in the chemical and allied process industries. It Abbreviated EtSH, it consists of an ethyl group (Et), CH 3 CH 2, attached to a thiol group, SH. Vapors may cause . There are certain end products that require odourant free LPG, such as hair spray or deodorant that use LPG as a propellant. Reproductive Hazard * According to the . Irritant. HAZARDS IDENTIFICATION 3.1. 5 ppm Ethyl Mercaptan Safety Data Sheet according to Regulation (EC) No. Most people describe the smell as either rotten eggs or rotten cabbage. An odorant (ethyl mercaptan) is added to provide a strong unpleasant odor. Adsorption and separation of light mercaptan (R-SH, R = C 1-C 4) from methane gas can effectively improve the utilization efficiency of methane and the resource conversion of organic sulfide.To further investigate the effects of composition and structural characteristics of laminates on desulfurization performance, in this paper, a two-dimensional (2D) HTiNbO 5-nanosheet (HTiNbO 5-NS) was . METHYL MERCAPTAN: ICSC: 0299 (June 2003) Methanethiol Mercaptomethane Methyl sulfhydrate Thiomethanol: CAS #: 74-93-1 : UN #: 1064 EC Number: 200-822-1 ACUTE HAZARDS PREVENTION FIRE FIGHTING; FIRE & EXPLOSION: Extremely flammable. Methyl mercaptan can be smelled and recognized in air when it is there at a level of about 1.6 ppb (1.6 parts of methyl mercaptan per billion parts of air). Use powder, foam . LPG has a variety of uses. It is widely used as a fuel for domestic or camping heating and cooking appliances. Intraperitoneal LD. One common odorant is ethyl mercaptan, CAS No. Thiols (particularly ethyl mercaptan) produce lethargy or sleepiness. Because of their relatively larger surface area:weight ratio, children are more vulnerable to toxicants that may affect the skin. potential€health€effects: can€cause€irritation€or€freeze€burns€if€contact€with€compressed€liquid€occurs. Ethanethiol, commonly known as ethyl mercaptan, is an organosulfur compound with the formula CH 3 CH 2 SH. Paralysis of locomotor muscles has also been observed. 50 (rat) = 450 mg/kg . Mercaptan methylique; Methaanthiol; Methanthiol; Methvtiolo; Methylmercaptaan; . Exposure to high levels may result in nausea, vomiting, restlessness, muscle incoordination and or paralysis, bluing of skin, depression of breathing, coma and death. Symptoms (including delayed and immediate effects) Inhalation: This product is an asphyxiant gas that can cause unconsciousness and/or death if oxygen levels are sufficiently reduced. Ethyl Mercaptan 67-56-1 50 ml/100 AG Min. To help detect leaks of the odourless gas, compounds such as ethanethiol (ethyl mercaptan) are added to give a distinct odour detectable by most people at low concentrations. Harmful Health Effects of Some Common Organic Compounds Used in Daily Life as Households Ravish Kumar Chauhan* Department of Chemistry, I.G.N.College Ladwa, Kurukshetra (Haryana) India *Corresponding author ABSTRACT Introduction The scientific community and the public have become aware of and concerned about the presence of toxic substances in their working and living environments and about . Health Care Provider Education. A 10 litre-spill of ethyl mercaptan, a chemical with an extremely strong odour, would evaporate in 17 minutes. This handy reference features a glossary of solvent terminology and an easy-to . Liquid irritates eyes and skin. The catalytic incineration of ethyl mercaptan over a MnO/Fe 2 O 3 fixed bed catalytic reactor was studied. H433 Harmful to terrestrial vertebrates. Symptoms or effects that may arise if the product is mishandled and overexposure occurs are: Acute Effects Inhalation: Safety Data Sheet Product Name: Ethyl Mercaptan Reference No: ICE000103 Issued: of 8 . 50 (rat) = 1960 mg/kg . Persistence and degradability 500 ppm Ethyl Mercaptan Persistence and degradability Not established. Place towels in a safe place such as a fume hood for evaporation. • Ethyl mercaptan used as a warning agent may not be entirely effective in all situations. If it is suspected that fumes are still present, the rescuer should wear an appropriate mask or self . The Agency concludes that the revised limit of 0.5 ppm will substantially reduce this significant risk. This odourant is added to the gas as it leaves the main storage terminals. ERPG-3 for methyl mercaptan is based on a 4-h acute inhalation study of rats exposed at 400 ppm (Tansy et al. 4 Effects in Man. Clinical signs of exposure are ocular and mucous membrane irritation, headache, dizziness, staggering gait, nausea, and vomiting. High concentrations may cause pulmonary irritation. Nausea and vomiting . One of the major health effects of natural gas leakage (or exposure to methane) is asphyxiation. Ethyl mercaptan Methyl mercaptan Fluorides Sulfuric acid Nitric acid Delist AAL Dichlorodifluoromethane (CFC-12) Dichlorofluoromethane (HCFC-21) Tetrachloro-1,2-difluoroethane, 1,1,2,2- (CFC-112) Tetrachloro-2,2-difluoroethane, 1,1,1,2- (CFC-112a) Trichloro, 1,1,2- trifluoroethane, 1,2,2-(CFC-113) Trichlorofluoromethane (CFC-11) FINAL DRAFT Page 6 2.0 Background The North Carolina Department . Reasons for the failure of the programme are discussed. Should a prppane-air mixture reach the lower limits of flammability, the ethyl mercaptan concentration will be approximately 0.5 ppm in air. Ethyl mercaptan depresses the central nervous system and affects the respiratory center, similar to hydrogen sulfide, producing death by respiratory paralysis. 75-08-1 RTECS No. One of the major health effects of natural gas leakage (or exposure to methane) is asphyxiation. Ethyl mercaptan. Apologies, we are having some trouble retrieving data from our servers. Special: Water suitable as an extinguishing agent 2: Health: Dangerous DG-EA: 3WE: Also known as: Ethanethiol; Ethyl sulfhydrate; H3C-CH2SH; Mercaptoethane; Show more chemical information. National Center for Biotechnology Information. Key words: Aboriginal; ethyl mercaptan; lead intoxication; petrol abuse. Ethyl Mercaptan Section 4. Jump to navigation Jump to search Over a period of at least four and a half days, about 3 g ethanethiol escaped from a defective capillary tube into the preparation room and the neighbouring classroom of a school (in total 325 m 3). Any smell of odourant, even a faint one, may indicate a dangerous . Some people . Chemical. toluene (1 08-88-3) Persistence and degradability Readily biodegradable in water . ODORANT WARNING: Odorant is added to aid in the detection of leaks. Safety Data Sheet Product Name: Ethyl Mercaptan Reference No . Ethyl Mercaptan (Odorant) 75-08-1 <0.0025 Material Data Safety Sheet Page 1 . KI9625000. Potential Adverse human health effects and symptoms: Based on available data, the classification criteria are not met. Exposure to humans can occur by eye/skin contact, inhalation, or ingestion, but ingestion is very unlikely due to methyl mercaptan's volatility. Blog. Allow sufficient time for evaporation of the vapors so that . Eye contact Direct contact with liquid propane can result in eye burns. On the first . ethyl acrylate: 00140-88-5: ethyl benzene: 00100-41-4: ethyl carbamate (urethane) 00051-79-6: ethyl chloride (chloroethane) 00075-00-3: ethyl mercaptan: 00075-08-1: ethylene chlorohydrin: 00107-07-3: ethylene dibromide: 00106-93-4: ethylene dichloride (dichloroethane, 1,2-) 00107-06-2: ethylene glycol: 00107-21-1: ethylene imine (aziridine . This handy reference features a glossary of solvent terminology and an easy-to . Outside, on the deck of the vessel still at sea, the vapor from the evaporating puddle mixes quickly with the air and the concentration of the ethyl mercaptan vapor in the air remains low. First aid measures Protection of first-aiders :No action shall be taken involving any personal risk or without suitable training. Chemical Name CAS-Number. Therefore, if mercaptans are in high concentration in natural gas, these must be removed to reduce the value to an acceptable limit. Adverse physicochemical, human health and environmental effects No additional information available 2.2. Exposure to high levels may result in nausea, vomiting, restlessness, muscle incoordination and or paralysis, bluing of skin, depression of breathing, coma and death. Thiols (particularly ethyl mercaptan) produce lethargy or sleepiness. Gives off irritating or toxic fumes (or gases) in a fire. To help detect leaks of the odourless gas, compounds such as ethanethiol (ethyl mercaptan) are added to give a distinct odour detectable by most people at low concentrations. Participants included trained panels, untrained ERDA employees, and several thousand untrained . Individuals with nasal perception problems may not be able to smell the odorant. However, in confined spaces, the concentration may rise high . Vapour/air mixtures are explosive. SECTION 12: Ecological information 12.1. 5.1. Harmful if inhaled. Toxicity No additional information available 12.2. The following chronic (long-term) health effects can occur at some time after exposure to Ethyl Mercaptan and can last for months or years: Cancer Hazard * According to the information presently available to the New Jersey Department of Health and Senior Services, Ethyl Mercaptan has not been tested for its ability to cause cancer in animals. Ethyl mercaptan Thioethyl alcohol: CAS #: 75-08-1: UN #: 2363 EC Number: 200-837-3 ACUTE HAZARDS PREVENTION FIRE FIGHTING ; FIRE & EXPLOSION: Extremely flammable. . H336 May cause drowsiness or dizziness. Ingestion causes nausea and irritation of mouth and stomach. Should a propane-air mixture reach the lower limits of flammability, the ethyl mercaptan concentration will be approximately 0.5 ppm in air. Physical. Contact. methyl mercaptan can result in harmful health effects such as cancer, birth defects, or problems with reproduction. Uses advised against Food, drug, pesticide or biocidal product use. . No.US:001-800-424-9300 / Europe:001-703 . Last updated: 06/08/2021. 1907/2006 (REACH) with its amendment . A 10 litre-puddle of water could take hours to evaporate. CARBON DISULPHIDE Fire-fighting measures Hazardous thermal decomposition products . Ethyl mercaptan is an extremely flammable liquid with a flash point of — 38°F (reported variously as 80°F, 0°F, — 4°F, and — 18°F, a spread of 118°F), a flammable range of 2.8 to 18.2 . EMERGENCY OVERVIEW: Health Hazards: Danger, may cause cardiac sensitization, asphyxiant gas, overexposure may cause depression, liquid material may cause frostbite and freeze burns. 0.2.1.1 ACUTE EXPOSURE. Ethyl Mercaptan (odorant) 74-98-6 106-97-8 75-28-5 74-84- 109-66- 75-08-1 50 - 100% 0 - 30% 0 - 30% 5% <2% <0.02% Information LPG is supplied in various grades to suit the application.
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