Phthalic Anhydride PurCert Standard

PurCert


Linear Formula:  C8H4O3
Molecular Weight:  148.12 g/mol
CAS Number: 85-44-9

Properties

Vapour pressure <0.01 mm Hg ( 20 °C)
Water Solubility 6 g/L (20 ºC)
Autoignition temp. 580 ‚°C
Explosion limit 1.7-10.5%(V)
Assay Purity ? 98 %
Refractive index n/20D 1.4500
B pt. 284 °C(lit.)
M pt. 131-134‚°C(lit.)
Density 1,53 g/cm3

Safety Information

Hazard Statement(s) H302,H315,H317,H318,H334,H335
Precautionary Statement  P261 - P280 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
Symbol
Signal word Danger
HS Code 29173500
Flash point 152‚°C
Storage Temp. Store at Room Temperature.
Storage Class 11 - Combustible Solids
UN Number 2214

Description

Other Notes

Colorless to white scaly crystals or flakes density 1.53 gcm slightly soluble in water (hydrolyzes to phthalic acid) soluble in organic solvents.

Purpose
Acts as a versatile intermediate to introduce phthalate functionality in polymers for flexibility coatings and adhesives.

General Description
Phthalic anhydride (CHO MW 148.12 gmol) is a white crystalline solid with a characteristic acrid odor forming a cyclic anhydride of 12-benzenedicarboxylic acid melting at 131C and sublimes at 284C.