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Tetrachlorophthalic anhydride

Synonyms: tetrachloro-1,2-benzenedicarboxylic acid anhydride; niagathal; 4,5,6,7-tetrachloro-1,3-isobenzofurandione;
Structural formula:

Molecular weight: 285.9
Index:

Index name

Index

Appearance

white crystal or colorless prism needle-like

Assay

≥99%

Melting point

254-256℃

Boiling point

371℃

Flash point

362℃

Loss on drying

≤0.5%

Free chlorine

≤10ppm

Fe

≤10ppm

Alkali insoluble matter

≤0.5%

HCB

≤0.1%

Uses: mainly used in intermediate of drug, pesticide , dye, pigment, fire retardant of resin, plastic reinforcing agent
Packing: 25kg/paper-plastic laminated bag; 40kg/paper-plastic laminated bag; 750kg/bulk bag

 

 
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