|
|
| PRODUCTS |
 p-Hydroxybenzoic
Acid |
 Chemical
Name: |
p-hydroxybenzoic acid |
| Molecular
Formula: |
C7H6O3 |
| Molecular
Weight: |
138.12 |
| CAS#: |
99-96-7 |
| Structural
Formula: |
 |
| Physical
& Chemical Properties:
|
This product is white crystal powder without
any smell but is astringent. it is easily dissolved in hot water,
alcohol, ether, acetone; slightly dissolved in cold water, benzene,
and not dissolved in carbon bisulfide. It is dissolved in 125
cold water and relative density is 1.46. |
| Quality
Specification: |
|
Item |
Specification |
|
Polymer
Grade |
Technical
Grade |
| Appearance |
white crystal powder |
white crystal powder |
| Purity(on dry base) % ≥ |
99.5 |
99.0 |
| Melting Point °C |
214-217 |
213-216 |
| Odor |
odorless |
odorless |
| Solubility |
Clear and transparent |
clear and transparent |
| Loss on Drying % ≤ |
0.20 |
0.50 |
| Color(Pt-Co) ≤ |
15 |
40 |
| Ash % ≤ |
0.02 |
0.15 |
| Sulfate(SO42-) ≤ |
0.01 |
0.05 |
| Chloride(Cl-) % ≤ |
0.005 |
0.02 |
| Phenol % ≤ |
0.01 |
0.10 |
| Salicylic Acid % ≤ |
0.02 |
0.10 |
| 4-Hydroxyisophthalic Acid(HIPA) ppm ≤ |
500 |
/ |
| Insolubles in Methanol ppm ≤ |
50 |
/ |
| Potassium(K+) ppm |
10 |
/ |
| Sodium (Na+) ppm ≤ |
10 |
/ |
| Iron (Fe) ppm ≤ |
10 |
/ |
| Ca2++Mg2+ppm
≤ |
10 |
/ |
|
| Usage:
|
This product could be used an intermediate
of antiseptics, dyestuff, medicine and injection molding. Nipagins
could be gained by its esterfication with alcohol. It is also
the main raw material for liquid crystal polymer and material
for pesticide intermediates. |
| Package: |
Packed in 25 kg plastic knit bag . Other packages are negotiable otherwise. |
|
|
|
 |
