PIVALIC ACID 0486
October 1995
2,2-Dimethylpropanoic acid
CAS No: 75-98-9
alpha,alpha-Dimethylpropionic acid
RTECS No: TO7700000
Trimethylacetic acid
UN No: 1759
Neopentanoic acid
EC No:
C5H10O2 / (CH3)3CCOOH
Molecular mass: 102.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. NO open flames. Powder, alcohol-resistant foam,
FIRE
water spray, carbon dioxide.
EXPLOSION
EXPOSURE
Cough. Sore throat. Local exhaust. Fresh air, rest.
Inhalation
Redness. Protective gloves. Rinse skin with plenty of water or
Skin
shower.
Redness. Safety spectacles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Burning sensation. Do not eat, drink, or smoke during Rinse mouth.
Ingestion
work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking liquid in sealable containers. If solid: Symbol Do not transport with food and
sweep spilled substance into containers; if R: feedstuffs.
appropriate, moisten first to prevent dusting. Wash S:
away remainder with plenty of water (extra personal UN Hazard Class: 8
protection: A/P2 filter respirator for organic vapour
and harmful dust).
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-159 Separated from strong oxidants, food and feedstuffs.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 1999
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0486 PIVALIC ACID
IMPORTANT DATA
Physical State; Appearance Routes of Exposure
COLOURLESS LIQUID OR COLOURLESS TO WHITE The substance can be absorbed into the body by inhalation of
CRYSTALS, WITH PUNGENT ODOUR. its aerosol, through the skin and by ingestion.
Chemical Dangers Inhalation Risk
The solution in water is a weak acid. The substance is a weak No indication can be given about the rate in which a harmful
base. Reacts violently with strong oxidants. Attacks many concentration in the air is reached on evaporation of this
metals forming flammable/explosive gas (hydrogen - see ICSC substance at 20C.
# 0001).
Effects of Short-term Exposure
Occupational Exposure Limits The substance irritates the eyes, the skin and the respiratory
TLV not established. tract.
PHYSICAL PROPERTIES
Boiling point: 164C Relative vapour density (air = 1): 3.5
Melting point: 36C Relative density of the vapour/air-mixture at 20C (air = 1): 1.00
Relative density (water = 1): 0.91 Flash point: 64C c.c.
Solubility in water, g/100 ml at 20C: 2.5 Octanol/water partition coefficient as log Pow: 1.4
Vapour pressure, kPa at 20C: 0.1
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
for the use which might be made of this information
漏 IPCS 1999
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