TETRACHLOROPHTHALIC ANHYDRIDE

PRODUCT IDENTIFICATION
CAS NO. 117-08-8

TETRACHLOROPHTHALIC ANHYDRIDE
EINECS NO. 204-171-4
FORMULA C6Cl4(CO)2O
MOL WT. 285.90

H.S. CODE

 

TOXICITY

 Oral rat LD50: 10 gm/kg
SYNONYMS niagathal; 四氯苯酐;
4,5,6,7-Tetrachloro-1,3-isobenzofurandione; tetrachloro-1,2-benzenedicarboxylic acid anhydride; 1,3-dioxy-4,5,6,7-tetrachloroisobenzofuran; Tetrathal;
DERIVATION  

CLASSIFICATION

CARBOXYLIC ACID ANHYDRIDES / FLAME RETARDANTS /

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white crystalline powder

MELTING POINT

 255 -257 C (Decomposes)
BOILING POINT 371 C
SPECIFIC GRAVITY 1.49

SOLUBILITY IN WATER

 < 0.1 g/100ml at 21 C
pH  
VAPOR DENSITY  
AUTOIGNITION

> 400 C

REFRACTIVE INDEX

 
NFPA RATINGS  
FLASH POINT

362 C
STABILITY Stable under ordinary conditions. Moisture sensitive

APPLICATIONS
Tetrachlorophthalic Anhydride is used as a flame retardant in epoxy resin, plastics, paper and textiles. It is also used as an intermediate to produce pharmaceuticals, dyes, plasticizers, and other organic compounds.
SALES SPECIFICATION

APPEARANCE

 white crystalline powder

CONTENT

99.0% min

INSOLUBLES IN ALKALI

0.5% max
MELTING POINT 255 -257 C

Fe

10ppm max

Cl

10ppm max
LOSS ON DRYING

0.5% max
TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS

not regulated
UN NO.  
GENERAL DESCRIPTION OF FLAME RETARDANT AGENT

Flame Retardant are substances that can be chemically inserted into the polymer molecule or be phisically blended in polymers after polymerization to suppress, reduce, delay or modify the propagation of a flame through a plastic materials. There are several classes of flame retardants; Halogenated Hydrocarbons (Chlorine and Bromine containing compounds and reactive flame retardants), Inorganic flame retardants ( Boron compounds, Antimony oxides, Aluminium Hydroxide, molybdenum compounds, zinc and magnesium oxides ), Phosphorous containing compounds (Organic phosphate esters, phosphates, halogenated phosphorus compounds and inorganic phosphorus containing salts).

OTHER INFORMATION
Hazard Symbols: T, Risk Phrases: 36/37/38/45, Safety Phrases: 26/37/39/45/53