International Chemical Safety Cards

TRIBUTYL PHOSPHATE

ICSC: 0584

Tri-n-butyl phosphate
Butyl phosphate
Phosphoric acid, Tributyl ester
C₁₂H₂₇O₄P / (C₄H₉)₃PO₄
Molecular mass: 266.3
ICSC #    0584
CAS #     126-73-8
RTECS # TC7700000
EC #         015-014-00-2
October 09, 1997 Peer reviewed

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. Nausea. Sore throat. Unconsciousness.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Refer for medical attention.
•SKIN	Redness. Burning sensation.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES	Redness. Pain.	Safety goggles, or face shield.	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

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: A/P2 filter respirator for organic vapour and harmful dust).

Ventilation along the floor.

Xn symbol
R: 22
S: 2-25

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0584

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

TRIBUTYL PHOSPHATE

ICSC: 0584

I

M

P

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T

A

N

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A

PHYSICAL STATE; APPEARANCE:
COLOURLESS, ODOURLESS VISCOUS LIQUID.

PHYSICAL DANGERS:

CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic fumes including phosphorous oxides. Reacts with warm water producing corrosive phosphoric acid and butanol. Attacks some forms of plastics, rubber and coatings.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.2 ppm; 2.2 mg/m³ (as TWA) (ACGIH 1997).
OSHA PEL: TWA 5 mg/m³
NIOSH REL: TWA 0.2 ppm (2.5 mg/m³)
NIOSH IDLH: 30 ppm

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour.

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.

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

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
See Notes.

PHYSICAL
PROPERTIES

Boiling point (decomposes): 289°C
Melting point: <-80°C
Relative density (water = 1): 0.98
Solubility in water: poor
Vapour pressure, kPa at 177°C: 17

Relative vapour density (air = 1): 9.2
Flash point: 146°C o.c.
Auto-ignition temperature: 410°C
Octanol/water partition coefficient as log Pow: 4.0

ENVIRONMENTAL
DATA

The substance is toxic to aquatic organisms.

N O T E S

Animal data have shown weak anticholinesterase activity.

NFPA Code: H2; F1; R0;

ADDITIONAL INFORMATION

ICSC: 0584	TRIBUTYL PHOSPHATE
(C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE:

Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.