Commodity Name: P-Hydroxy Benzoic acid
Molecular formula: C7H6O3
Molecular structure:
CAS 99-96-7
Specification
|
Item |
Polymer Grade |
Technical Grade |
Appearance |
white crystal powder |
white crystal powder |
Assay(on dry base),%,min |
99.5 |
99.0 |
Melting Range,deg C |
214-217 |
213-216 |
Odor |
odorless |
odorless |
Solubility |
Clear and transparent |
clear and transparent |
Loss on Drying,%,max |
0.2 |
0.50 |
Color(Pt-Co),max |
15 |
40 |
Ash,%,max |
0.02 |
0.15 |
Sulfate(SO42-),%,max |
0.01 |
0.05 |
Chloride(Cl-),%,max |
0.005 |
0.02 |
Phenol,%,max |
0.01 |
0.10 |
Salicylic Acid,%,max |
0.02 |
0.10 |
4-Hydroxyisophthalic Acid(HIPA),ppm,max |
500 |
/ |
Insolubles in Methanol,ppm,max |
50 |
/ |
Potassium(K+),ppm,max |
10 |
/ |
Sodium (Na+),ppm,max |
10 |
/ |
Iron (Fe),ppm,max |
10 |
/ |
Ca2++Mg2+ppm,max |
10 |
/ |
Packing: 25kg or 500kg woven plastics bag with lining |
