Item

Standard (BP98)

Test Result

Appearance

Colourless or white crystal

Conform

Identification and solubility

Pass the test

Conform

Clarity and colorless of solution

20% water solution clarity

Clarity

Assay

99.5% to 101.0%

99.88%

Humidity

≤0.5%

0.13%

Sulphated ash

≤0.1%

0.02%

Loss on drying

7.8-8.8%

8.74%

Sulphate

≤150ppm

<30ppm

Oxalates

≤350ppm

<20ppm

Calcium

≤200ppm

<10ppm

Heavy metals

≤10ppm

<1ppm

Iron

≤50ppm

<5ppm

Chloride

≤50ppm

<5ppm

Readily carbureted substance

Standard color

Standard

Barium

Pass the test

Conform

Bacterial endotoxin

≤0.5IU/G

<0.5IU/G

Aluminium

≤0.2ppm

<0.2ppm

Arsenic

≤4ppm

<0.1ppm

M, , erury

≤1ppm

<0.1ppm

Lead

≤1ppm

<0.5ppm

Organic volatile impurity

Pass the test

Conform

Tridodecylamine

≤0.1ppm

Conform

U.V. Readiation absorption value

Pass the test

Conform