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Phthalic Anhydride 99.7% AR Grade Reagent

Cas Number: 85-44-9
Formula: C8H4O3
Molar Mass:148.12
EC Number:201-607-5

Quantity:
  • AR
  • LABOR
  • 136402129

Phthalic Anhydride 99.7% AR Grade Reagent


Cas Number: 85-44-9

Formula: C8H4O3

Molar Mass:148.12

EC Number:201-607-5


Physicochemical properties:

White shiny needle crystals. Sublimate. It is soluble in hot water, phthalic acid, soluble in ethanol, slightly soluble in cold water, carbon disulfide and ether. The relative density is 1.53. The melting point is 130.8 ° C. The boiling point is 295 ° C. The flash point is 152 ° C. Irritating.


Usage:

A standard solution of the base is calibrated. The primary alcohol is separated from the secondary alcohol and the tertiary alcohol. Primary amines and aromatic hydrocarbons are checked depending on the melting point. The thiophene in benzene is removed.


Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.7 min

Melting point,

129.0~133.0

Residue on ignition(as SO4),%

0.025 max

Chloride(Cl),%

0.005 max

sulfur compounds(as SO4),%

0.001 max

Heavy metals(as Pb),%

0.001 max


Symbol 

Signal word 

Danger

Hazard statement

H302


H315


H317


H318


H334


H335


H402

Precautionary statements—Prevention

P261


P264


P270


P271


P272


P273


P280


P284

Precautionary statements—Response

P301+P312+P330


P302+P352


P304+P340+P312


P305+P351+P338+P310


P333+P313


P342+P311

Precautionary statements—Storage

P403+P233


P405

UN No.

2214

Hazard Class

8

Package Group

III

Flashpoint

No information

Boiling point

284°C

Melting point

131°C



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