| Purified Terephthalic Acid |
| |
Manufactured at
Panipat Refinery
|
Specifications
| Property |
Unit |
Specifications |
| Appearance |
|
White dry free flowing crystals |
| Acid No |
mg/KOH/g |
675 +/- 2 |
| 4 Carboxyl benzaldehyde |
ppm w/w |
25 max |
| Paratoulic acid |
ppm/ww |
125 +/- 45 |
| Ash |
ppm/ww |
6 max |
Total significant metals
(Mo, Cr, Ni, Co, Fe, Ti, Mn) |
ppm w/w |
6 max |
| Moisture |
% Wt |
0.2 max |
| Colour in 2N KOH solution |
Hazen Units |
10 max |
|
End-uses
Manufacture of Polyester, PET
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