Name | Ethanethiol |
Synonyms | EM(TM) RT Ethanethiol ETHANETHIOL MERCAPTAN C2 Mercaptan C2 Ethylmercaptan Ethyl mercaptan ETHYL MERCAPTAN 1-Mercaptoethane mercury diethanethiolate |
CAS | 75-08-1 |
EINECS | 200-837-3 |
InChI | InChI=1/2C2H6S.Hg/c2*1-2-3;/h2*3H,2H2,1H3;/q;;+2/p-2 |
Molecular Formula | C2H6S |
Molar Mass | 62.13 |
Density | 0.839g/mLat 25°C(lit.) |
Melting Point | -148 °C |
Boling Point | 35°C(lit.) |
Flash Point | 1°F |
JECFA Number | 1659 |
Water Solubility | Soluble in alcohol, ether, waterMiscible with alcohol, petroleum naphtha, acetone, dilute alkali and ether. Slightly miscible with water. |
Solubility | 6.8g/l |
Vapor Presure | 8.51 psi ( 20 °C) |
Vapor Density | 2.1 (vs air) |
Appearance | Liquid |
Color | Colorless |
Odor | Strong chunk; offensive garlic. |
Exposure Limit | TLV-TWA 0.5 ppm (~1.3 mg/m3 ) (ACGIHand MSHA); ceiling 10 ppm (OSHA); IDLH2500 ppm (NIOSH). |
Merck | 14,3726 |
BRN | 773638 |
pKa | 10.6(at 25℃) |
Storage Condition | Store below +30°C. |
Stability | Stable. Extremely flammable - note low flash point. Incompatible with oxidizing agents, strong acids. May form explosive mixtures with air. |
Explosive Limit | 2.8-18%(V) |
Refractive Index | n20/D 1.4306(lit.) |
Physical and Chemical Properties | Colorless transparent oily liquid with strong persistent pungent garlic odor. Volatile in the air. melting point -147.89 ℃ boiling point 35 ℃ relative density 0.8391 refractive index 1.4310 soluble in water, 20 ° C in water solubility of 1.5% (weight ratio), soluble in alkaline water and ethanol, ether and other organic solvents. |
Use | For pesticide intermediates, warning gas |
Risk Codes | R11 - Highly Flammable R20 - Harmful by inhalation R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R12 - Extremely Flammable R20/22 - Harmful by inhalation and if swallowed. |
Safety Description | S16 - Keep away from sources of ignition. S25 - Avoid contact with eyes. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 2363 3/PG 1 |
WGK Germany | 3 |
RTECS | KI9625000 |
FLUKA BRAND F CODES | 13 |
TSCA | Yes |
HS Code | 2930 90 98 |
Hazard Class | 3 |
Packing Group | I |
Toxicity | LD50 orally in Rabbit: 682 mg/kg |
Downstream Products | Ethyl thioacetate |
A colorless transparent oily liquid with a strong persistent pungent garlic odor. Volatile in the air. Melting point 147. 89 °c. Boiling point of 35 deg C. The relative density was 0.8391. Refractive index 1.4310. The critical temperature is 225.5. The critical pressure is 5.32MPa. Vapor (20 °c) 58. 928kPa. Slightly soluble in water, 20 deg C in water solubility of 1.5% (mass ratio),25 deg C per liter of water can dissolve 6. 76G. Hydrate can be formed with water, and the hydrate will crystallize below 10 °c. Soluble in alkaline water and ethanol, ether and other organic solvents. Explosive Limit of 2.8% ~ 18.2% (volume). The minimum ignition temperature is 299 °c in air and 261 °c in oxygen. Viscosity (20 C) 0.293MPA. s. The flash point was below 0 °c. Spontaneous ignition point was 303. 78 ℃.
There are three main processes.
important intermediates in pesticide industry, mainly used as antimicrobial agent 401, pesticide phorate, phosphorus, phosphorus, phosphorus, phosphorus and methyl phosphorus and other organic phosphorus pesticide intermediates. In addition, it can also be used as an odorant for reagents and gases (the odor can be detected at a concentration of 0. 00019mg/L).