1,2,4-Benzenetricarboxylic anhydride 552-30-7

Details:

1,2,4-Benzenetricarboxylic anhydride Chemical Properties

mp  163-166 °C(lit.)

bp  390 °C 
density  1.54
vapor density  6.6 (vs air)

vapor pressure  <0.01 mm Hg ( 20 °C)

Fp  227 °C 
Water Solubility  DECOMPOSES
Sensitive  Moisture Sensitive
Merck  14,9703
BRN  9394
Stability: Stable. Moisture sensitive.
CAS DataBase Reference 552-30-7(CAS DataBase Reference)
NIST Chemistry Reference Trimellitic anhydride(552-30-7)
EPA Substance Registry System 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-(552-30-7)

Safety Information

Hazard Codes  Xn
Risk Statements  37-41-42/43
Safety Statements  22-26-36/37/39
WGK Germany  1

RTECS  DC2050000

F  10-21
HS Code  29173980
Hazardous Substances Data 552-30-7(Hazardous Substances Data)

1,2,4-Benzenetricarboxylic anhydride Usage And Synthesis

Chemical Properties white crystalline powder
Usage Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc. Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins. It is also used as an intermediate for the synthesis of surface coatings chemicals, adhesives, polymers, dyes printing inks, pharmaceuticals . 
General Description Crystals or off-white flakes.
Air & Water Reactions Sensitive to moisture. Hydrolyzes slowly. Solutions in water or alcohol may be unstable. Insoluble in water.
Reactivity Profile 1,2,4-Benzenetricarboxylic anhydride reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Incompatible with strong oxidizing agents, strong acids or strong bases. .
Fire Hazard 1,2,4-Benzenetricarboxylic anhydride is combustible.