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Name Dimethyl sulfide
CAS 75-18-3
EINECS(EC#) 200-846-2
Molecular Formula C2H6S
MDL Number MFCD00008562
Molecular Weight 62.13
MOL File 75-18-3.mol

Chemical Properties

Appearance Clear colorless liquid
Melting point  −98 °C(lit.)
Boiling point  38 °C(lit.)
density  0.846 g/mL at 25 °C(lit.)
vapor density  2.1 (vs air)
vapor pressure  26.24 psi ( 55 °C)
FEMA  2746
refractive index  n20/D 1.435(lit.)
Fp  −34 °F
storage temp.  2-8°C
solubility  Miscible with alcohols, ethers, esters, ketones, aliphatic and aromatic hydrocarbons.
form  Liquid
color  Clear colorless
Specific Gravity 0.849 (20/4℃)
Odor Ethereal, permeating; disagreeable; offensive.
Stability: Stable. Incompatible with strong oxidizing agents. Highly flammable-note low boiling point, low flash point, and wide explosion limits. Mixtures with air are potentially explosive. Incompatible with strong oxidizing agents. Use in UK regulated by LPG Regulations 1978 in accordance with HSE guidance note CS17.
explosive limit 2.2-19.7%(V)
Odor Threshold 0.003ppm
Odor Type sulfurous
JECFA Number 452
Merck  14,6123
BRN  1696847
Dielectric constant 6.3(20℃)
Exposure limits ACGIH: TWA 10 ppm
LogP 0.89
CAS DataBase Reference 75-18-3(CAS DataBase Reference)
NIST Chemistry Reference Dimethyl sulfide(75-18-3)
EPA Substance Registry System 75-18-3(EPA Substance)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
R36:Irritating to the eyes.
Safety Statements 
S7:Keep container tightly closed .
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S29:Do not empty into drains .
S33:Take precautionary measures against static discharges .
S36/39:Wear suitable protective clothing and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 1164 3/PG 2
WGK Germany  1
RTECS  PV5075000
Autoignition Temperature 402 °F
HazardClass  3
PackingGroup  II
HS Code  29309090
Safety Profile
Poison by inhalation. Moderately toxic by ingestion. A skin and severe eye irritant. A very dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of SOx and may explode. See also SULFIDES.
Hazardous Substances Data 75-18-3(Hazardous Substances Data)
LD50 orally in Rabbit: 535 mg/kg LD50 dermal Rabbit > 5000 mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

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