Description
Technical Parameters
Product Brief Introduction
Product name:Phenolphthalein
CAS:77-09-8
MF:C20H14O4
MW:318.323
Product Specification
|
Item |
Specification |
|
Appearance |
White powder |
|
Identification |
Positive |
|
Color of Solution |
A≤0.150 |
|
Acidity or Alkalinity |
Complies |
|
Melting Point |
≥260℃ |
|
Loss on Drying |
≤0.5% |
|
Sulfated Ash |
≤0.1% |
|
Sulfate (SO42-) |
≤200ppm |
|
Chloride (Cl-) |
≤100ppm |
|
Limit of Fluoran |
Complies |
|
Related Substances |
≤0.5% |
|
Heavy Metals |
≤10ppm |
|
Arsenic |
≤8ppm |
|
Chromatography Impurities |
≤1.0% |
|
Organic Volatile Impurities |
Complies |
|
Assay |
98.0%-101.0% |
