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DIBUTYL PHOSPHATE ICSC: 1278
Date of Peer Review: March 1998

Dibutyl acid o-phosphate
Dibutyl hydrogen phosphate
Phosphoric acid dibutyl ester
CAS # 107-66-4 (CH3(CH2)3)2HPO4 / C8H19PO4
RTECS # TB9605000 Molecular mass: 210.2
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, AFFF, foam, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough. Headache. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
Skin Redness. Pain.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain.
Safety goggles, face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Burning sensation. Sore throat.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking liquid in sealable containers. Cautiously neutralize spilled liquid. Then wash away with plenty of water. Personal protection: filter respirator for organic gases and vapours.
EU Classification
UN Classification

EMERGENCY RESPONSE SAFE STORAGE

Separated from strong oxidants, strong bases.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


DIBUTYL PHOSPHATE ICSC: 1278
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID.

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic and corrosive fumes including phosphoric acid. The substance is a medium strong acid. Reacts with strong oxidants. Attacks many metals forming flammable/explosive gas (hydrogen - see ICSC 0001).

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 1 ppm as TWA; 2 ppm as STEL; (ACGIH 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract.

PHYSICAL PROPERTIES
Boiling point: 135-138C
Melting point: -13C
Relative density (water = 1): 1.06
Solubility in water, g/100 ml at 20C: 1.8
Vapour pressure, kPa at 20C: 0.13
Relative vapour density (air = 1): 7.2
Relative density of the vapour/air-mixture at 20C (air = 1): 1.01
Flash point: 188C o.c.
Auto-ignition temperature: 420C
Octanol/water partition coefficient as log Pow: 0.6-1.4
ENVIRONMENTAL DATA

NOTES

ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004