- Min.Order :25 Kilogram
- Purity: 50%
- Payment Terms : L/C,D/A,D/P,T/T
Keywords
Policresulen policresulen 50% policresulen liquid
Quick Details
- Appearance:liquid
- Application:active pharmaceutical ingredient
- PackAge:as request
- ProductionCapacity:|Metric Ton|Day
- Storage:in cool
- Transportation:air/ sea both ok
Superiority:
1. GMP AVALIABLE ;
2. IN STOCK
3. FAST REPLY
QUALIFED ; EFFICIENCY; RESPONSIBLE
Details:
|
ANALYTICAL ITEMS |
SPECIFICATION |
RESULTS |
|
Character |
Red brown viscous liquid; Highly acidic. |
Conforms |
|
Relative density |
1.10～1.30 |
1.20 |
|
Identification |
Positive reaction |
Positive reaction |
|
Maximum absorption at 281 nm |
Conforms |
|
|
Related substances |
Containing m-cresol -4, 6-disulfonic acid not more than 1.5% |
0.4% |
|
Containing m-cresol 4-sulfonic acid not more than 17.0%; |
7.7% |
|
|
Containing m-cresol 6-sulfonic acid not more than 7.0%; |
2.1% |
|
|
Bisphenol sulfonic acid should be no less than 1.9% |
3.3% |
|
|
The peak area of m-cresol -4, 6-disulfonic acid, m-cresol -4- sulfonic acid and m-cresol -6- sulfonic acid was removed. The peak area normalization method was used to calculate the sum of polysulfonic acid and bisphenol sulfonic acid area not less than 40%. |
51% |
|
Sulfates |
NMT 2.0% |
Conforms |
|
Barium salt |
Conforms |
Conforms |
|
Residue on ignition |
NMT 0.2% |
0.02% |
|
Heavy metals |
NMT 20 ppm |
Conforms |
|
Trichloromethane |
NMT 0.0006% |
N.D |
|
Contents |
45.0%～55.0%（g/g) |
50.1% |
|
pH |
NMT 1 |
NMT 1 |
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