| Identification | More | 【Name】
METHYL MERCAPTAN | 【CAS】
74-93-1 | 【Synonyms】
4Q 1998
FEMA 2716
MERCAPTAN C1
MERCAPTOMETHANE
METHANETHIOL
METHYL MERCAPTAN
METHYL SULFHYDRATE
THIOMETHANOL
THIOMETHYL ALCOHOL
CH3SH
Mercaptan methylique
mercaptanmethylique
mercaptanmethylique(french)
Methaanthiol
Methanethiole
methanethiolvialwith25ml
Methanthiol
Methvtiolo
Methyl thioalcohol
Methylmercaptaan | 【EINECS(EC#)】
200-822-1 | 【Molecular Formula】
CH4S | 【MDL Number】
MFCD00004866 | 【Molecular Weight】
48.11 | 【MOL File】
74-93-1.mol |
| Chemical Properties | Back Directory | 【Appearance】
colourless gas with a garlic-like or rotten cabbage-like smell | 【mp 】
−123 °C(lit.)
| 【bp 】
6 °C(lit.)
| 【density 】
0.8665 | 【vapor density 】
1.66 (vs air)
| 【vapor pressure 】
1536 mm Hg ( 20 °C)
| 【FEMA 】
2716 | 【Fp 】
<71℃ | 【Stability:】
Stable. Highly flammable - note low flash point. Reacts vigorously or explosively with a wide variety of materials - consult a full MSDS data sheet before using. Incompatible with strong oxidizing agents, alkali and alkaline earth metals, epoxides, hydrazines, ketones, lead, mercury (II) oxide, azo- and diazo- compounds, copp | 【Merck 】
13,5983 | 【CAS DataBase Reference】
74-93-1(CAS DataBase Reference) |
| Safety Data | Back Directory | 【Hazard Codes 】
F+,T,N | 【Risk Statements 】
R12:Extremely Flammable.
R23:Toxic by inhalation.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | 【Safety Statements 】
S16:Keep away from sources of ignition - No smoking .
S25:Avoid contact with eyes .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | 【RIDADR 】
UN 2037 2.3
| 【WGK Germany 】
3
| 【RTECS 】
PB4375000
| 【F 】
13-27 | 【HazardClass 】
2.3 |
| Hazard Information | Back Directory | 【Reactivity Profile】
METHYL MERCAPTAN is a reducing agent--can react vigorously with oxidizing agents. Dangerous fire or explosion hazard when exposed to heat, flame, sparks or strong oxidizing agents (e.g., calcium hypochlorite). When heating to decomposition emits highly toxic fumes of oxides of sulfur [Lewis, 3rd ed., 1993, p. 862]. Violent reaction with mercury(II) oxide [Klason P., Ber., 1887, 20, p. 3410]. | 【Air & Water Reactions】
Highly flammable. Reacts with water, steam or acids to produce toxic, flammable vapors [Lewis]. | 【Health Hazard】
Can cause death by respiratory paralysis. It is an eye and respiratory tract irritant. Exposure results in pulmonary edema and hepatic and renal damage. | 【Fire Hazard】
Combustion produces irritating sulfur dioxide. Flash back along vapor track may occur. Very dangerous when exposed to heat, flame, or oxidizers. On decomposition METHYL MERCAPTAN emits highly toxic fumes of sulfur oxides. METHYL MERCAPTAN will react with water, steam or acids to produce toxic and flammable vapors; and can react vigorously with oxidizing materials. Irritating sulfur dioxide is produced upon combustion. When heated to decomposition, METHYL MERCAPTAN emits highly toxic fumes and flammable vapors. Incompatible with mercuric oxide and oxidizing materials. Avoid direct sunlight, and areas of high fire hazards. Hazardous polymerization may not occur. |
|
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