|
 |
| |
|
Tetrachlorophthalic anhydride
|
【English name】:Tetrachlorophthalic Anhydride
【English initial】:TCPA
【Chinese name】:Tetrachlorophthalic anhydride
【Chinese alias】:Tetrachlorophthalic anhydride
【CAS】:117-08-8
【Molecular formula】:C8Cl4O3
【Relative molecular weight】:285.9
【Product quality】 |
 |
Item |
Index |
Fine product |
Superior grade |
First grade |
Second grade |
Qualified product |
Appearance |
White crystal or powder |
Purity／%≥ |
Gas phase chromatography |
— |
99.0 |
— |
99.0 |
99.0 |
Liquid phase chromatography |
98.5 |
— |
99.0 |
— |
— |
Melting point／℃≥ |
256.0 |
255.5~258.0 |
256.0~258.0 |
255.5~258.0 |
255.5~258.0 |
Drying loss／%≤ |
— |
0.50 |
0.50 |
0.50 |
0.50 |
Solubility in xylene／% |
100 |
— |
— |
100 |
100 |
Chroma≤ |
in Xylene |
50 |
— |
— |
150 |
— |
in Methanol |
— |
150 |
— |
— |
— |
In ethanol |
— |
— |
10 |
— |
— |
Free acid/%≤ |
— |
0.50 |
0.50 |
0.50 |
0.50 |
Free chlorine/%≤ |
— |
0.001
(10ppm) |
0.001
(10ppm) |
0.001
(10ppm) |
0.001
(10ppm) |
Iron content/ppm≤ |
30 |
10 |
— |
10 |
10 |
Alkali insoluble/%≤ |
— |
0.50 |
— |
— |
— |
Hexachlorobenzene/%≤ |
0.015
(150ppm) |
0.100
(1000ppm) |
0.100
(1000ppm) |
0.100
(1000ppm) |
— |
Sulfate /%≤ |
0.010
(100ppm) |
— |
— |
— |
— |
Tetrachloride phthalic acid
/%≤ |
0.7 |
— |
— |
— |
— |
Water/%≤ |
0.04 |
— |
— |
— |
— |
【Packing】:Lining plastic woven bag, nwt 25kg.
【Use】:For medicine, painws, dyes, flame retardants and so on. |
|
|
|
