Phenolphthalein Powder supplier CAS 77-09-8 from China
Product Description
| TEST ITEM: |
SPECIFICATION: |
RESULTS: |
| Characteristics: |
A white or almost white powder, practically insoluble in water, soluble in alcohol. |
A white powder, practically insoluble in water, soluble in alcohol. |
| Melting Point |
It melts at about 260°C-262°C |
261°C ~262°C |
| Identification |
A:Positive
B:Positive |
A:Positive
B:Positive |
| Appearance of solution |
The solution is clear and not more intensely coloured than reference solution Y7 |
Complies |
| Related substances |
Less than 0.01% |
<0.01% |
| Heavy metals |
Not more than0.001% |
<0.0009% |
| Acidity or alkalinity |
Complies |
Complies |
| Chlorides |
Not more than 0.01% |
<0.01% |
| Sulphates |
Not more than 0.02% |
<0.02% |
| Loss on drying |
Not more than 0.5% |
0.12% |
| Sulphated ash |
Not more than 0.1% |
0.01% |
| Assay |
98.0%-101.0%(C20H14O4) |
99.6% |
| Storage condition: |
Store in well closed drums, in cool and dry storage area. |
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