Dimethyl sulfide（CAS#75-18-3）

Chemical Property:

Molecular Formula	C2H6S
Molar Mass	62.13
Density	0.846g/mLat 25°C(lit.)
Melting Point	−98°C(lit.)
Boling Point	38°C(lit.)
Flash Point	−34°F
JECFA Number	452
Water Solubility	溶于乙醇和乙醚，不溶于水。
Solubility	Miscible with alcohols, ethers, esters, ketones, aliphatic and aromatic hydrocarbons. Slightly miscible with
Vapor Presure	26.24 psi ( 55 °C)
Vapor Density	2.1 (vs air)
Appearance	Liquid
Specific Gravity	0.849 (20/4℃)
Color	Clear colorless
Odor	Ethereal, permeating; disagreeable; offensive.
Exposure Limit	ACGIH: TWA 10 ppm
Merck	14,6123
BRN	1696847
Storage Condition	Store at +2°C to +8°C.
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
Explosive Limit	2.2-19.7%(V)
Refractive Index	n20/D 1.435(lit.)
Physical and Chemical Properties	Colorless transparent volatile liquid. There is an unpleasant smell. melting point -83 ℃ boiling point 37.5 ℃ relative density 0.845 refractive index 1.4438 flash point -17.8 ℃ soluble in ethanol and ether, insoluble in water.
Use	For the preparation of dimethyl sulfoxide and as pesticide intermediates or solvents

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Product Detail

Product Tags

Risk Codes	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 Description	S7 – Keep container tightly closed. S9 – Keep container in a well-ventilated place. S16 – Keep away from sources of ignition. S29 – Do not empty into drains. S33 – Take precautionary measures against static discharges. S36/39 - S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDs	UN 1164 3/PG 2
WGK Germany	1
RTECS	PV5075000
FLUKA BRAND F CODES	13
TSCA	Yes
HS Code	2930 90 98
Hazard Class	3
Packing Group	II
Toxicity	LD50 orally in Rabbit: 535 mg/kg LD50 dermal Rabbit > 5000 mg/kg

Introduction

Dimethyl sulfide (also known as dimethyl sulfide) is an inorganic sulfur compound. The following is an introduction to the properties, uses, preparation methods and safety information of dimethyl sulfide:

Quality:

- Appearance: Colorless liquid with a strong special odor.

- Solubility: miscible with ethanol, ethers, and many organic solvents.

Use:

- Industrial applications: Dimethyl sulfide is widely used as a solvent in organic synthesis reactions, especially in sulfidation and thioaddition reactions.

Method:

- Dimethyl sulfide can be prepared by the direct reaction of ethanol and sulfur. The reaction usually takes place under acidic conditions and requires heating.

- It can also be prepared by adding sodium sulfide to two methyl bromides (e.g. methyl bromide).

Safety Information:

- Dimethyl sulfide has a pungent odor and has an irritating effect on the skin and eyes.

- Avoid contact with skin and eyes and take appropriate precautions when using.

- During use and storage, contact with oxidants and strong acids should be avoided to avoid unsafe reactions.

- Waste should be disposed of in accordance with local laws and regulations and should not be dumped.

- Maintain proper ventilation during storage and use.

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