Item

70% liquid

Crystal

Crystal

Assay≥

70%

99.0%

99.5%

Total acid(Hydroxyacetic acid )

70~72%

Free acid (Hydroxyacetic acid )≥

62%

Residue on ignition ≤

0.3%

0.05%

0.05%

Water insolubles≤

0.01%

0.01%

0.005%

Chroma( Hazen )≤

5

5

5

chloride(Cl-)≤

0.001%

0.0005%

0.0005%

sulphate(SO42-)≤

0.05%

0.005%

0.005%

Heavy metal(Pb)≤

0.001%

0.0005%

Fe ≤

0.001%

0.0005%

0.0005%

As ≤

0.0002%

0.0001%

Sulphuric acid test

Qualified

Qualified

Qualified

Clarity test

Qualified

Qualified

Qualified