Item

BP98

USP24

Appearance

Colorless or slightly yellow liquid

Colorless or slightly yellow liquid

Assay on dried basis,%

99.50-100.50

98.00-100.50

Specific gravity,25℃

1.180-1.186

1.180-1.185

Refractive index

1.536-1.538

1.535-1.538

 

Acidity

0.1mnaoh≤0.4ml

0.1MNaoH≤0.4ml

 

Heavy metals,ppm, ≤

20

20

 

Solubility

2 mlsample is solublein 10ml 96% alcohol clear 0.1

1/7 70% alcohol the solution having not more than a slight cloudiness

 

Angular rotation

 

Not exceeding – 1.5 in a 100 mm tube

 

Phenol,ppm, ≤

 

150