Tests

Analysis Standard

Results

Description

White or slightly yellowish powder,hygroscopic

White powder

IR Identification

The infrared absorption spectrum is concordant with the reference spectrum of standard

Conforms

Heavy Metal

NMT10ppm

Conforms

MP

About 242°C

Conforms

Solubility

Practically insoluble in water

Freely soluble in dimethylformamide

Slightly soluble in acetone and in methanol

Conforms

Sulphated Ash

NMT0.1%

0.05%

Residual Solvents

NMT2000ppm

300ppm

Particle Size

NLT98% passes through ASTM 40# screen

100%

Related Comounds

Single ImpurityA: NMT0.1%

B: NMT0.1%

Other Impurity: NMT0.1%

Total Impurity NMT0.2%

Conforms

Content

98.0% to 101.0%(anhydrous substance)

99.8%

Water

NMT1.0%

Conforms

Conclusion

EP7. Conform The Stipulation