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Diethyl Sulfate
- Origin
- : Bangladesh, China
- CAS Number
- : 64-67-5
- HS Code
- : 2920.90.10
Basic Info
- IUPAC Name
- : diethyl sulfate
- Molecular Formula
- : C4H10O4S
- Molecular Weight (g/mol)
- : 154.1900
- Synonyms & Trade Names
- : Diethyl sulfate; Ethyl sulfate; DES; Diethyl sulphate
- Purity / Assay (%)
- : 99% min
- Grade / Quality Level
- : Technical Grade
- Physical Form
- : Liquid
- Concentration
- : Pure substance
- Appearance / Color
- : Clear to slightly colored liquid
- Odor
- : Slight
- Melting Point (°C)
- : -25.0000
- Boiling Point (°C)
- : 208
- Density (g/cm³)
- : 1.1770
- Solubility in Water
- : Freely soluble
- Signal Word
- : Danger
- UN Number
- : 1594
- GHS Hazard Class
- : Acute toxic; Skin irritant; Eye irritant; Carcinogen
- H-Statements
- : H302|H315|H319|H331|H351
- P-Statements
- : P201|P260|P264|P271|P280|P308+P313
- REACH Status
- : Registered (SVHC)
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 6.1
- Storage Conditions
- : Cool, dry; ventilated; away from heat
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Brief Overview
Diethyl sulfate is a colorless liquid with formula C4H10O4S. It has a peppermint odor with a melting point of about -25 ℃ and boiling point of 209.5 ℃ where it decomposes. When heated or mixed with hot water, irritant fumes is released. Diethyl sulfate does not dissolve in water, but is miscible with alcohol, ether and most polar organic solvents. Diethyl sulfate exists in the atmosphere in the gas phase. It will react with hydroxyl radical and has a short lifetime in the atmosphere where it will decompose into ethyl sulfate hydrogen sulfate and ethanol. Upon heating or mixing with hot water, diethyl sulfate will decompose into ethyl hydrogen sulfate and alcohol.
Manufacturing process
Diethyl sulfate is produced from ethylene and concentrated sulfuric acid. Ethylene gas is bubbled through a solution of concentrated sulfuric acid. Diethyl sulfate can also be produced by mixing concentrated sulfuric acid into a solution of ethyl alcohol or ethyl ether.
