Items

Requirements

Description

A greenish yellow powder

Odor/Taste

No bad taste and off-flavor

Solubility

Slight soluble in water; easy soluble in Sodium hydroxide

Identification

Positive

Loss on drying

5.5-9.0%

Residue on ignition

<0.5%

Heavy metals:

<20ppm

As (Arsenic):

<2ppm

Chlorophyll

<0.004%

Red Pigment

<0.004%

Color value:

E 10.0%, 1.0cm, 375 nm

Quecetin

<5%

Assay (on the anhydrous basis)

95-101.5%