PHTHAL ANHYDRIDE elit ac manufacturer in Sina

FRUCTUS PHTHALICA ANHYDRIDE (NAPHTHELENE BASED)
OPERA GB/T 15336-2013
NO. Qualitas ITEM INDEX RESULTS
I SPECTACULUM CRYSTALLINUM VEL PULVIS CANDIDA incanduit VEL CRYSTALLINUM IUNCUS
2 COLOR (PT-CO) ≤20 10
3 COLOR (PT-CO) ≤50 30
4 ACIDUM SULPHURICUM (PT-CO) ≤60 30
5 MUNDITIA/% ≥99.50 99.96
6 CRYSTALLIZATIO PUNCTUM ℃ ≥130.5 131.3
7 FREE ACID/% ≤0.20 0.025