Phenolphthalein
CERTIFICATE OF ANALYSIS
Commodity: Phenolphthalein BP2018/USP23
Date of Report: 2021.03.21
Batch No.:20210227
Date of Manufacture:20210321
Quantity:1000kg
Date of expiration:20230320
Items |
Quality index |
Analytical results |
Outer aspect |
White powder |
White powder |
Identification |
positive |
positive |
Color of solution |
A≤0.150 |
Pass |
Acidity or alkalinity |
Pass |
Pass |
Melting temperature |
≥260℃ |
261.0-262.0 |
Heavy metals |
≤10ppm |
<10ppm |
Arsenic |
≤8ppm |
<8ppm |
Chlorides |
≤100ppm |
<100ppm |
Sulphates |
≤200ppm |
<200ppm |
Loss on drying |
≤0.5% |
0.12 |
Sulphated ash(Residue on ignition) |
≤0.1% |
0.05 |
Limit of fluoran |
Pass |
Pass |
Related substances |
≤0.5% |
<0.5% |
Chromatographic impurities |
≤1.0% |
<1.0% |
Organic volatile impurities |
Pass |
Pass |
Assay |
98.0%-101.0% |
99.27% |
Conclusion | The product is up to standard of BP2018/USP23 |