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Diethyl sulfate

CAS No.
64-67-5
Chemical Name:
Diethyl sulfate
Synonyms
DIETHYL SULPHATE;DS;ETHYL SULFATE;SULFURIC ACID DIETHYL ESTER;DHYS;Ethylsulpate;Diethylsulfat;Diaethylsulfat;DIETHYL SULFATE;Two ethyl sulfate
CBNumber:
CB9483493
Molecular Formula:
C4H10O4S
Molecular Weight:
154.18
MDL Number:
MFCD00009099
MOL File:
64-67-5.mol
MSDS File:
SDS
Last updated:2024-03-14 15:18:32

Diethyl sulfate Properties

Melting point -24 °C (lit.)
Boiling point 208 °C (lit.)
Density 1.177 g/mL at 25 °C (lit.)
vapor density 5.3 (vs air)
vapor pressure <0.01 mm Hg ( 20 °C)
refractive index n20/D 1.399(lit.)
Flash point 173 °F
storage temp. Refrigerator (+4°C)
solubility soluble in Ether,Alcohol
form Liquid
color Clear
Odor char. faint ether odor, irritating after-effect
Water Solubility 5 g/L (20 ºC)
Merck 14,3130
BRN 1209714
Dielectric constant 29.0(20℃)
Stability Moisture sensitive. May react violently with oxidizing agents.
CAS DataBase Reference 64-67-5(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances DIETHYL SULFATE
EWG's Food Scores 4-7
FDA UNII K0FO4VFA7I
Proposition 65 List Diethyl Sulfate
NIST Chemistry Reference Sulfuric acid, diethyl ester(64-67-5)
IARC 2A (Vol. 54, 71) 1999
EPA Substance Registry System Diethyl sulfate (64-67-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07,GHS08
Signal word  Danger
Hazard statements  H302+H312+H332-H314-H340-H350
Precautionary statements  P202-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  T
Risk Statements  45-46-20/21/22-34
Safety Statements  53-45
RIDADR  UN 1594 6.1/PG 2
WGK Germany  3
RTECS  WS7875000
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29209090
Toxicity LD50 orally in rats: 0.88 g/kg (Smyth)
NFPA 704
1
3 1

Diethyl sulfate price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D100706 Diethyl sulfate 98% 64-67-5 2kg $99.6 2024-03-01 Buy
Sigma-Aldrich D100706 Diethyl sulfate 98% 64-67-5 1kg $106 2024-03-01 Buy
TCI Chemical D0525 Diethyl Sulfate >98.0%(GC) 64-67-5 25mL $19 2024-03-01 Buy
TCI Chemical D0525 Diethyl Sulfate >98.0%(GC) 64-67-5 500mL $30 2024-03-01 Buy
Alfa Aesar L14291 Diethyl sulfate, 98% 64-67-5 100ml $25.65 2024-03-01 Buy
Product number Packaging Price Buy
D100706 2kg $99.6 Buy
D100706 1kg $106 Buy
D0525 25mL $19 Buy
D0525 500mL $30 Buy
L14291 100ml $25.65 Buy

Diethyl sulfate Chemical Properties,Uses,Production

Description

Diethyl sulfate is a colorless, oily liquid witha faint peppermint-like or ether-like odor. Turns brownon contact with air. Molecular weight=154.20; Boilingpoint=209℃ (decomposes); Freezing/Melting point=225℃; Flash point=104℃; Autoignitiontemperature=436℃. Hazard Identification (based onNFPA-704 M Rating System): Health 3, Flammability 1,Reactivity 1. Insoluble in water; slight decomposition.

Chemical Properties

Diethyl sulfate is a colorless, oily liquid with a faint peppermint- like odor, which darkens with age (Budavari, 1996). It is miscible with alcohol and ether (O'Neil, 2006). At higher temperatures, DES rapidly decomposes into monoethyl sulfate and alcohol (NTP, 2011).

Uses

The primary use of diethyl sulfate is as a chemical intermediate (ethylating agent) in synthesis of ethyl derivatives of phenols, amines, and thiols; as an accelerator in the sulfation of ethylene; and in some sulfonation processes. It is used to manufacture dyes, pigments, carbonless paper, and textiles. It is an intermediate in the indirect hydration (strong acid) process for the preparation of synthetic ethanol from ethylene. Smaller quantities are used in household products, cosmetics, agricultural chemicals, pharmaceuticals, and laboratory reagents (IARC 1992, 1999, HSDB 2009). In 1966, it was used as a mutagen to create the Luther variety of barley (IARC 1974).

Application

Diethyl sulfate can be used as a reactant for the synthesis of:
Biologically active compounds such as bispyrazole, pyrazolopyrimidine and pyridine containing antipyrinyl moieties.
N-substituted-2-styryl-4(3H)-quinazolinones.
Ionic liquids with pyrrolidinium, piperidinium and morpholinium cations, having potential applications as electrolytes.
It can also be used as an alkylating agent to synthesize 1-alkyl/aralkyl-2-(1-arylsufonylalkyl)benzimidazoles and an ionic liquid ethylmethylimidazole ethylsulfate ([EMIM][EtSO4].

Preparation

Diethyl sulfate is produced from ethanol and sulfuric acid, from ethylene and sulfuric acid, or from diethyl ether and fuming sulfuric acid (Budavari, 1996).

Definition

ChEBI: Diethyl sulfate is the diethyl ester of sulfuric acid. It has a role as a carcinogenic agent, an apoptosis inducer, an alkylating agent and a mutagen.

General Description

Diethyl sulfate appears as a clear colorless liquid with a peppermint odor. Burns, though may be difficult to ignite. Corrosive to metals and tissue. It is a potent alkylating agent.

Air & Water Reactions

Highly flammable. Slowly reacts with water to form ethyl alcohol, a flammable liquid, and ethyl sulfate, with eventual conversion to sulfuric acid.

Reactivity Profile

The presence of moisture in a metal container of Diethyl sulfate caused the formation of sulfuric acid which reacts with the metal to release hydrogen which pressurized and exploded the container [Chem. Abst. 28:2908(1934)].

Health Hazard

May be fatal if inhaled, swallowed or absorbed through skin. Inhalation causes nausea and vomiting. Causes burns to skin and eyes. Ingestion may cause nausea, vomiting abdominal pain and collapse.

Safety Profile

Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Poison by inhalation and subcutaneous routes. Moderately toxic by ingestion and sktn contact. A severe skin irritant. An experimental teratogen. Mutation data reported. Combustible when exposed to heat or flame; can react with oxidzing materials. Moisture causes liberation of H2SO4. Violent reaction with potassium tert-butoxide. Reacts violently with 3,8-dnitro-6-phenylphenanthridine + water. Reaction with iron + water forms explosive hydrogen gas. To fight fire, use alcohol foam, H2O foam, CO2, dry chemicals. When heated to decomposition it emits toxic fumes of SOx. See also SULFATES.

Potential Exposure

Tumorigen,Mutagen; Reproductive Effector; Primary Irritant. Used asan industrial chemical; ethylating agent (synthesis of dyeand pharmaceuticals); synthesizing agent of ammoniumchloride compounds; in making isopropyl alcohol, ethylalcohol, and other chemicals; dehydrating agent; extractantfor gasoline.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Gastric lavage (stomach wash), if swallowed,followed by saline catharsis. Do not make an unconsciousperson vomit. Medical observation is recommended for24-48 h after breathing overexposure, as pulmonary edemamay be delayed. As first aid for pulmonary edema, a doctoror authorized paramedic may consider administering a corticosteroid spray.

Carcinogenicity

Diethyl sulfate is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals.

storage

(1) Color Code—Yellow Stripe (strong reducingagent): Reactivity Hazard; Store separately in an area isolated from flammables, combustibles, or other yellow-codedmaterials. (2) Color Code—Blue: Health Hazard/Poison:Store in a secure poison location. Protect against physicaldamage. Store in a cool, dry, well-ventilated location awayfrom any area where the fire hazard may be acute. Outsideor detached storage is preferred. Separate from other storage. Before entering confined space where DS may be present, check to make sure that an explosive concentrationdoes not exist. Store in tightly closed containers in a cool,well-ventilated area. Metal containers involving the transferof this chemical should be grounded and bonded. Wherepossible, automatically pump liquid from drums or otherstorage containers to process containers. Drums must be equipped with self-closing valves, pressure vacuum bungs,and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers ofthis chemical. Sources of ignition, such as smoking andopen flames, are prohibited where this chemical is used,handled, or stored in a manner that could create a potentialfire or explosion hazard. Wherever this chemical is used,handled, manufactured, or stored, use explosion-proof electrical equipment and fittings. A regulated, marked areashould be established where this chemical is handled, used,or stored in compliance with OSHA Standard 1910.1045.

Shipping

This compound requires a shipping label of“POISONOUS/TOXIC MATERIALS.” It falls in HazardClass 6.1 and Packing Group II.

Purification Methods

Wash the ester with aqueous 3% Na2CO3 (to remove acidic material), then distilled water, dry (CaCl2), filter and distil it in a vacuum. It is an ethylating agent and blisters the skin. [Beilstein 1 IV 1236.]

Incompatibilities

Vigorous reaction with strong oxidizersor water (forms sulfuric acid). The aqueous solution is astrong acid; incompatible with nonoxidizing mineral acids,organic acids, bases, acrylates, aldehydes, alcohols, alkylene oxides, ammonia, aliphatic amines, alkanolamines, aromatic amines, amides, chlorates, epichlorohydrin,fulminates, glycols, isocyanates, ketones, powdered metals,organic anhydrides, perchlorates, picrates, substituted allyls,phenols, and cresols. DS decomposes when heated, producing diethyl ether and fumes of sulfur oxides. DS is a strongreducing agent; reacts with oxidizing materials. Formsexplosive hydrogen gas on contact with iron in the presenceof water.

Global( 365)Suppliers
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View Lastest Price from Diethyl sulfate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Diethyl sulfate pictures 2023-07-27 Diethyl sulfate
64-67-5
US $1.50 / g 1g 99.0% Min 100 Tons Shaanxi Didu New Materials Co. Ltd
Diethyl sulfate pictures 2023-06-25 Diethyl sulfate
64-67-5
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
Diethyl sulfate pictures 2023-03-06 Diethyl sulfate
64-67-5
US $10.70 / Kg/Drum 10g 99% 10000kg Hebei Guanlang Biotechnology Co,.LTD
  • Diethyl sulfate pictures
  • Diethyl sulfate
    64-67-5
  • US $1.50 / g
  • 99.0% Min
  • Shaanxi Didu New Materials Co. Ltd
  • Diethyl sulfate pictures
  • Diethyl sulfate
    64-67-5
  • US $10.70 / Kg/Drum
  • 99%
  • Hebei Guanlang Biotechnology Co,.LTD
Diaethylsulfat Diethylester kyseliny sirove diethylesterkyselinysirove diethyltetraoxosulfate Ethylsulpate sulfatediethylique Sulphuric acid diethyl ester DIETHYL SULFATE Diethyl sulfate (DES) Diethylsulfate,98% DiethylSulfate,Certified DiethylSulphate99.5% DiethylSulphateForSynthesis DIETHYL SULFATE (BULK) SULPHONICACID,DIETHYLESTER Diethylsulfat DIETHYL SULFATE (DRUMS) DIETHYL SULPHATE extrapure Ethyl sulfate, Sulfuric acid diethyl ester Sulfuric acid diethyl Diethyl sulfate,99% DIETHYL SULFATE FOR SYNTHESIS Two ethyl sulfate DHYS Diethyl Sulphate (DES) DiethylSulfate> Diethyl sulphate, puriss, 98%+ Diethyl sulphate, puriss DS DIETHYL SULPHATE ETHYL SULFATE SULFURIC ACID DIETHYL ESTER Diethyl Sulphate (99%, 99.5%) Parecoxib Impurity 32 Parecoxib Sodium Impurity 28 Parecoxib Impurity 45 (Diethyl Sulfate) Parecoxib Impurity 1 (Diethyl Sulfate) DES (DIETHYL SULFATE) 64-67-5 22292-65-1 4-67-5 CH3CH2O2SO2 C2H52SO4 540829 C4H1004S C4H10O4S Synthetic Reagents C-X Bond Formation (Non-Halogen) Alkyl Transfer Organics Pharmaceutical Intermediates