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|
PAA Specification
|
| Product
Standards |
Phthalic
Anhydride (Molten, Flake)
|
Packaging |
Flaked phthalic anhydride is available in 3-ply Kraft paper bags containing 25, 500, and 1,000 kg net.
Molten phthalic anhydride is available in tank cars and in tank trucks.
|
| Requirements |
Form -White, free-flowing flakes or brilliantly clear liquid, free of any suspended matter or turbidity
|
| Property |
Method
of Test |
Specification |
| Color Molten,
APHA |
ASTM D 3366
(Koppers No. 305) |
20 max. |
|
| Color Stability,
APHA (2 hr. @ 250 ºC) |
ASTM D 3366
(Koppers No. 307) |
50 max. |
|
| Freezing Point, ºC |
ASTM D 1493
(Koppers No. 301) |
130.9 min. |
|
| Naphthoquinone,
ppm |
Koppers 309 |
0.25 max. |
|
| Phthalic Acid,
% |
Koppers No.
311.1 |
0.2 max. |
|
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