4525-33-1

Synonym
Chemical Name
Chemical Family
Dimethyl Dicarbonate

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Section 4. First Aid Measures
Eye ContactCheck for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at
least 15 minutes. Get medical attention.
Skin ContactIn case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient. Remove
contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get
medical attention.
Serious Skin ContactWash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate
medical attention.
InhalationIf inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get
medical attention immediately.
Serious InhalationNot available.
IngestionDo NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight
clothing such as a collar, tie, belt or waistband.
Serious IngestionNot available.

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Section 5. Fire and Explosion Data
Flammability of the Product Combustible.
Auto-Ignition Temperature Not available.
Flash PointsCLOSED CUP: 80°C (176°F).
Flammable LimitsNot available.
Products of CombustionThese products are carbon oxides (CO, CO2).
Fire Hazards in Presence of Flammable in presence of open flames and sparks, of heat.
Various SubstancesNon-flammable in presence of shocks.
Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
of Various SubstancesRisks of explosion of the product in presence of static discharge: Not available.
Fire Fighting MediaSMALL FIRE: Use DRY chemical powder.
and InstructionsLARGE FIRE: Use water spray, fog or foam. Do not use water jet.
Special Remarks onNot available.
Fire Hazards
Special Remarks on Explosion Not available.
Hazards

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Section 6. Accidental Release Measures
Small SpillAbsorb with an inert material and put the spilled material in an appropriate waste disposal.
Large SpillCombustible material.
Keep away from heat. Keep away from sources of ignition. Stop leak if without risk. If the product is in its solid
form: Use a shovel to put the material into a convenient waste disposal container. If the product is in its liquid
form: Absorb with an inert material and put the spilled material in an appropriate waste disposal. Finish cleaning
by spreading water on the contaminated surface and allow to evacuate through the sanitary system.
Dimethyl Dicarbonate

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Section 7. Handling and Storage
PrecautionsKeep locked up.. Keep away from heat. Keep away from sources of ignition. Ground all equipment containing
material. Do not ingest. Do not breathe gas/fumes/ vapor/spray. Wear suitable protective clothing. In case of
insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and
show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as
oxidizing agents, alkalis.
StorageAir sensitive. Moisture sensitive Keep container in a cool, well-ventilated area. Keep container tightly closed and
sealed until ready for use. Avoid all possible sources of ignition (spark or flame). Refrigerate. Do not store above
4°C (39.2°F).

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Section 8. Exposure Controls/Personal Protection
Engineering ControlsProvide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their
respective threshold limit value. Ensure that eyewash stations and safety showers are proximal to the
work-station location.
Personal ProtectionSplash goggles. Lab coat. Vapor respirator. Be sure to use an approved/certified respirator or equivalent.
Gloves.
Personal Protection in Case of Splash goggles. Full suit. Vapor respirator. Boots. Gloves. A self contained breathing apparatus should be
a Large Spillused to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist
BEFORE handling this product.
Exposure LimitsNot available.

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Section 9. Physical and Chemical Properties
Physical state and appearance Liquid.OdorNot available.
TasteNot available.
Not available.
Molecular Weight
ColorColorless.
pH (1% soln/water)Not available.
45.5°C (113.9°F)
Boiling Point
Melting Point16°C (60.8°F)
Not available.
Critical Temperature
Specific Gravity1.254 (Water = 1)
Vapor PressureNot available.
Vapor DensityNot available.
VolatilityNot available.
Odor ThresholdNot available.
Water/Oil Dist. Coeff.Not available.
Not available.
Ionicity (in Water)
Dispersion PropertiesNot available.
SolubilityNot available.
Dimethyl Dicarbonate

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Section 10. Stability and Reactivity Data
The product is stable.
Stability
Instability TemperatureNot available.
Heat, ignition sources (sparks, flames), air, moisture, incompatible materials
Conditions of Instability
Reactive with oxidizing agents, alkalis.
Incompatibility with various
substances
CorrosivityNot available.
Special Remarks onAir sensitive. Moisture sensitive
Reactivity
Special Remarks onNot available.
Corrosivity
PolymerizationWill not occur.

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Section 11. Toxicological Information
Routes of EntryAbsorbed through skin. Eye contact. Inhalation.
Toxicity to AnimalsAcute oral toxicity (LD50): 260 mg/kg [Rat].
Chronic Effects on Humans Not available.
Other Toxic Effects onHazardous in case of skin contact (irritant), of ingestion, of inhalation.
Humans
Special Remarks onNot available.
Toxicity to Animals
Special Remarks onNot available.
Chronic Effects on Humans
Special Remarks on otherAcute Potential Health Effects:
Toxic Effects on HumansSkin: Causes skin irritation.
Eyes: Exposure to vapor or mist will cause eye irritation.
Inhalation: Inhalationi of vapor or mist may be irritating to mucous membranes and upper respiratory tract. May
affect behavior/central nervous system. Symptoms may include somnolence, tremor. May also affect respiratory
system (dyspnea), and metabolism
Ingestion: May cause gastrointestinal tract irritation.
The toxicological properties of this substance have not been fully investigated.

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Section 12. Ecological Information
EcotoxicityNot available.
BOD5 and CODNot available.
Products of BiodegradationPossibly hazardous short term degradation products are not likely. However, long term degradation products may
arise.
Toxicity of the ProductsThe products of degradation are less toxic than the product itself.
of Biodegradation
Special Remarks on theNot available.
Products of Biodegradation
Dimethyl Dicarbonate

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Section 13. Disposal Considerations
Waste DisposalWaste must be disposed of in accordance with federal, state and local environmental
control regulations.

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Section 14. Transport Information
DOT ClassificationNot a DOT controlled material (United States).
Not applicable.
Identification
Not applicable.
Special Provisions for
Transport
DOT (Pictograms)

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Section 15. Other Regulatory Information and Pictograms
TSCA 8(b) inventory: Dimethyl Dicarbonate
Federal and State
Regulations
California
Proposition 65
Warnings
Other RegulationsOSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances.
WHMIS (Canada) Not controlled under WHMIS (Canada).
Other Classifications
DSCL (EEC)R22- Harmful if swallowed.S1/2- Keep locked up and out of the reach of
R23- Toxic by inhalation.children.
R36/38- Irritating to eyes and skin.S45- In case of accident or if you feel unwell,
seek medical advice immediately (show the
label where possible).
S46- If swallowed, seek medical advice
immediately and show this container or label.
Health Hazard
HMIS (U.S.A.)2 National Fire Protection
2 Flammability
2 Association (U.S.A.)
Fire Hazard
2 0 Reactivity
Health
Reactivity
0
Specific hazard
Personal Protection
h
WHMIS (Canada)
(Pictograms)
DSCL (Europe)
(Pictograms)
Dimethyl Dicarbonate
TDG (Canada)
(Pictograms)
ADR (Europe)
(Pictograms)
Protective Equipment
Gloves.
Lab coat.
Vapor respirator. Be sure to use an
approved/certified respirator or
equivalent.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

711 mg/m3/4H

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Behavioral - tremor Lungs, Thorax, or Respiration - dyspnea

REFERENCE :

NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0545284 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

50 mg/m3/6H/5D-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

REFERENCE :

NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0545284