CSCl2

CSCl2 - Names and Identifiers

Name	Thiophosgene
Synonyms	CSCl2 Thiophosgene Phosgene, thio- carbonchlorosulfide Dichlorothiocarbonyl Carbon chlorosulfide Thiocarbonyl chloride carbonothioicdichloride carbonothioyl dichloride Carbonyl chloride, thio- Carbonic dichloride, thio-
CAS	463-71-8
EINECS	207-341-6
InChI	InChI=1/CCl2S/c2-1(3)4

CSCl2 - Physico-chemical Properties

Molecular Formula	CCl2S
Molar Mass	114.982
Density	1.579g/cm³
Melting Point	<25 °C
Boling Point	73°C at 760 mmHg
Flash Point	62 °C
Water Solubility	slow decomposition in cold, fast in hot water
Vapor Presure	127mmHg at 25°C
Refractive Index	1.563
Physical and Chemical Properties	Sulfur phosgene is a reddish liquid, B. p.73.5 ℃,n20D 1.5442, relative density 1.5085(15/4 ℃), soluble in ether, decomposes with water and alcohol, and has pungent smell.
Use	Thiophosgene is an intermediate for the preparation of acaricide butyletherurea, and also an important intermediate for the preparation of thiocarbamate insecticides and herbicides. For organic synthesis, can be used for the synthesis of liranayl ester

CSCl2 - Risk and Safety

Hazard Symbols	T - Toxic
Risk Codes	R22 - Harmful if swallowed R23 - Toxic by inhalation R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN 2474

CSCl2 - Upstream Downstream Industry

Raw Materials

Potassium iodide
Sulfur dioxide
1,1,2,2-Tetrachloroethane
Perchloromethylmercaptan

Downstream Products

CSCl2 - Nature

melting point	<25 °C
boiling point	73 °C
density	1.508
vapor density	4 (vs air)
refractive index	n20/D 1.548(lit.)
flash point	62 °C
storage conditions	2-8°C
morphology	Liquid
color	A reddish liquid
water solubility	slow decomposition in cold, fast in hot water
BRN	1633495
stability	Stable. but reacts violently with water to produce toxic fumes. Incompatible with water, alcohols. Refrigerate at 2-8 C.
NIST chemical information	Carbonothioic dichloride(463-71-8)
EPA chemical information	Thiophosgene (463-71-8)

Last Update：2024-04-10 22:29:15

CSCl2 - Security information

category	toxic substances
toxicity classification	highly toxic
acute toxicity	oral administration-rat LD50: 929 mg/kg; Inhalation-mouse LC50: 0.37g/m3
Stimulus data	skin-rabbit 500 mg/24 hours moderate; Eyes-rabbit 0.05 mg/24 hours severe
flammability hazard characteristics	decomposition of toxic, flammable hydrogen sulfide and hydrogen chloride gas in case of acid; slow decomposition of the above gas in water
storage and transportation characteristics	The warehouse is ventilated and dry at low temperature; it is stored and transported separately from strong acid and food
fire extinguishing agent	sand, carbon dioxide

dangerous goods mark	T
hazard category code	22-23-36/37/38
safety instructions	7-9-36/37-45-7/9
dangerous goods transport number	UN 2474 6.1/PG 2
WGK Germany	1
RTECS number	XN2450000
F	19-21
HazardClass	6.1(a)
PackingGroup	II
customs code	28530090
toxic substance data	463-71-8(Hazardous Substances Data)

Last Update：2024-04-10 22:29:15

CSCl2 - Production method

Thiophosgene is made by reducing perchloromethyl mercaptan.

Add potassium iodide to the mixture of perchloromethyl mercaptan, tetrachloroethane and water, stir, introduce sulfur dioxide at room temperature, automatically heat up during the reaction, adjust the ventilation volume, and keep the temperature at 50~70 ℃. When the temperature of the reaction liquid no longer rises and the sulfur dioxide is no longer obviously absorbed, stop aeration, cool and stand, divide the organic layer for fractionation, and collect the fraction below 76 ℃ to obtain sulfur phosgene.

It is obtained by reduction and elimination of perchloromethyl mercaptan. Add potassium iodide to the mixture of perchloromethyl mercaptan, tetrachloroethane and water, stir, and introduce sulfur dioxide at room temperature. During the reaction, the temperature is automatically increased, the ventilation volume is adjusted, and the temperature is kept at 50-70°C. Stop ventilation when the temperature of the reaction solution no longer rises and sulfur dioxide is no longer significantly absorbed. Cooling and standing, taking the organic layer for fractionation, collecting fractions below 76 ℃ to obtain sulfur phosgene.

Last Update：2024-04-10 22:29:15