BATCH NO.

210303

ANALYSIS ITEM

ANALYSIS STANDARD

ANALYSIS REPORT

Apperance

White crystal

White crystal

Purity(%)

≥99.9

99.93

GALLIC ACID (%)

≤0.1

0.04

MELTING POINT ℃

198.0-203.0

202.0-203.0

LOSS on DRYING (%)

≤0.5

0.07

IGNITED RESIDUE (%)

≤0.1

0.012

COLOR

≤100

<100

 Heavy METAL (ppm)

≤10

<10

Metal content

Fe (ppm)

≤0.5

<0.5

Na (ppm)

≤0.5

<0.5

Mg (ppm)

≤0.5

<0.5

Al (ppm)

≤0.5

<0.5

K  (ppm)

≤0.5

<0.5

Mn (ppm)

≤0.5

<0.5

Ni (ppm)

≤0.5

<0.5

Cu (ppm)

≤0.5

<0.5

Zn (ppm)

≤0.5

<0.5

Ca (ppm)

≤0.5

<0.5