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TRIBUTYL PHOSPHATE ICSC: 0584
Date of Peer Review: October 2005

Tri-n-butyl phosphate
Phosphoric acid, tributyl ester
CAS # 126-73-8 C12H27O4P / (C4H9)3PO4
RTECS # TC7700000 Molecular mass: 266.3
UN #
EC Index # 015-014-00-2
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.
Water spray, foam, powder, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough. Headache. Nausea. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest.
Skin Redness. Pain.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and vapours. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Do not use plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
EU Classification
Symbol: Xn
R: 22-38-40
S: (2-)-36/37-46
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H3; F1; R0;
Store in an area without drain or sewer access. Separated from bases and strong oxidants.
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 2005

SEE IMPORTANT INFORMATION ON BACK
TRIBUTYL PHOSPHATE ICSC: 0584
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS ODOURLESS VISCOUS LIQUID

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic fumes including phosphorus oxides. Reacts with warm water producing corrosive phosphoric acid and butanol. Attacks some forms of plastic, rubber and coatings. Reacts with bases and strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.2 ppm as TWA; BEI issued; (ACGIH 2005).
MAK: 1 ppm as TWA; skin absorption (H); Peak limitation category: II(4); Carcinogen category: 4; Pregnancy risk group: C; (DFG 2005).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20C; on spraying or dispersing, however, much faster.

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

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
When ingested the substance may have effects on the bladder, resulting in tissue lesions.
PHYSICAL PROPERTIES
Boiling point (decomposes): 289C
Melting point: <-80C
Relative density (water = 1): 0.98
Solubility in water: poor
Vapour pressure, Pa at 25C: 0.15
Relative vapour density (air = 1): 9.2
Flash point: 146C o.c.
Auto-ignition temperature: >482C
Octanol/water partition coefficient as log Pow: 4.0
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms.
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 2005