TRIBUTYL PHOSPHATE (ICSC)

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 20°C; 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): 289°C
Melting point: <-80°C
Relative density (water = 1): 0.98
Solubility in water: poor
Vapour pressure, Pa at 25°C: 0.15
Relative vapour density (air = 1): 9.2

Flash point: 146°C o.c.
Auto-ignition temperature: >482°C
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

    See Also:
       Toxicological Abbreviations
       Tributyl phosphate (EHC 112, 1991)
       Tributyl phosphate (SIDS)