SPEC

Technical grade

Export grade

ITEMS

Yotech Standard

Yotech Standard

Appearance

White  crystal powder

White  crystal powder

Assay                      %

≥98%

≥99%

Melting point

173-176°C

174-175°C

Loss on drying                 %

≤0.5%

≤0.2%

sulphate                   %

≤0.02%

≤0.01%

Heavy metal(Fe)            %

≤0.001%

≤0.001%

Glycine hydrochloride          %

≤1.0%

≤0.6%

Free  hydrochloric  acid       %

≤0.2%

≤0.1%

Middle Control Item

White degree            %

80%

85%

Permeation rate          15%

≥96%

≥98%

Particle size (micron)

90% overpass 100

90% overpass 100

Store  period        

One year

One year