Appearance

White, powder and with styrax smell

Content (as C₇H₅NaO₂ dry base)

99-100.5%

Loss on drying

1.5% max

Acidity or alkalinity

0.2 ml/0.1N

Heavy metal

0.001% max

Pb

5 mg/KG max

As

3ml/KG max

Hg

1ml/KG max

Halogenide (Fecl₃)

0.02% max

Total Cl content

0.03% max

Transparency and color

According to Y6

Insoluble state

Passing test

Polycyclic acids

Passing test

Fusion point

121.5-123.5

Compound easy to be oxidized

Passing test

Conclusion: all the items in conformity with the BP2000/Food grade test