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Diethyl sulfate
CAS No.: 64-67-5
Synonyms:
Formula: C4H10O4S
Exact Mass: 154.03000
Molecular Weight: 154.18500
PSA: 60.98000
LogP: 1.38500
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Diethyl sulfate 64-67-5 MSDS
Name: Diethyl Sulfate 95% (GC) Material Safety Data Sheet
Synonym: Ethyl sulfat
CAS: 64-67-5
Section 1 - Chemical Product   MSDS Name:Diethyl Sulfate 95% (GC) Material Safety Data Sheet
Synonym:Ethyl sulfat

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
64-67-5 Diethyl sulfate 99 200-589-6
Hazard Symbols: T
Risk Phrases: 20/21/22 34 45 46

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed. Causes burns. May cause cancer. May cause heritable genetic damage.Corrosive.Moisture sensitive.Cancer suspect agent.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Harmful if absorbed through the skin. Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May be harmful if swallowed. May cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May be harmful if inhaled. May cause systemic effects.
Chronic:
May cause fetal effects. May cause cancer in humans. Effects may be delayed. Chronic exposure may cause lung damage. Laboratory experiments have resulted in mutagenic effects. Prolonged exposure may cause corneal erosion, conjunctivitis, and possible blindness.

Section 4 - FIRST AID MEASURES
  Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Persons with asthma, chronic respiratory disease, skin disorders, eye problems or allergies may be at increased risk from exposure to this substance. Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Water or foam may cause frothing. Use water spray to cool fire-exposed containers. Do NOT get water inside containers.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Clean up spills immediately, observing precautions in the Protective Equipment section. Provide ventilation. Do not get water inside containers.

Section 7 - HANDLING and STORAGE
  Handling:
Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Do not allow contact with water.
Discard contaminated shoes. Keep from contact with moist air and steam.
Storage:
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 64-67-5: United Kingdom, WEL - TWA: 0.05 ppm TWA; 0.32 mg/m3 TWA United Kingdom, WEL - STEL: 0.15 ppm STEL; 0.96 mg/m3 STEL Germany: 0.03 ppm TWA; 0.2 mg/m3 TWA Germany: Skin absorber Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Viscous liquid
Color: colorless
Odor: ethereal odor - peppermint odor
pH: Not available.
Vapor Pressure: 2 mm Hg @ 55 deg C
Viscosity: Not available.
Boiling Point: 208 deg C
Freezing/Melting Point: -25 deg C
Autoignition Temperature: 817 deg C ( 1,502.60 deg F)
Flash Point: 104 deg C ( 219.20 deg F)
Explosion Limits, lower: 4.1 vol %
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Decomposes.
Specific Gravity/Density: 1.2000 g/cm3
Molecular Formula: C4H10O4S
Molecular Weight: 154.19

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures. Decomposes when heated.
Conditions to Avoid:
Incompatible materials, moisture, excess heat, temperatures above 85C.
Incompatibilities with Other Materials:
Moisture, potassium-tert-butoxide, iron + water, alkalies, nitric acid, aluminum, peroxides, strong bases, strong oxidizing agents, 2,7-dinitro-9-phenylphenanthridine + water.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 64-67-5: WS7875000 LD50/LC50:
CAS# 64-67-5: Oral, mouse: LD50 = 647 mg/kg; Oral, rat: LD50 = 880 mg/kg; Skin, rabbit: LD50 = 600 uL/kg.
Carcinogenicity:
Diethyl sulfate - California: carcinogen, initial date 1/1/88 NTP: Suspect carcinogen IARC: Group 2A carcinogen Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
If released to soil, estimated soil adsorption coefficients ranging from 33 to 99 indicate that it may display high to very high mobility in soil; however, diethylsulfate is known to rapidly hydrolyze in water under neutral, basic and acidic conditions and this reaction is expected to dominate its fate in soil. If released to water diethylsulfate is expected to hydrolyze with an experimental half-life of 1.7 hrs at neutral pH. This reaction is catalyzed by both acids and bases.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
USA RQ: CAS# 64-67-5: 10 lb final RQ; 4.54 kg final RQ

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 45 May cause cancer.
R 46 May cause heritable genetic damage.
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 34 Causes burns.
Safety Phrases:
S 53 Avoid exposure - obtain special instructions
before use.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 64-67-5: 2
Canada
CAS# 64-67-5 is listed on Canada's DSL List.
CAS# 64-67-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 64-67-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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