Standard

Enterprise Standard

Enterprise Standard

Enterprise Standard

Appearance

white or slight yellow powder

white or slight yellow powder

white or slight yellow powder

Assay  %

≥99.5 

≥99.0

≥98.5 

Chloride (Cl) %

≤0.01 

≤0.05

≤0.5 

Fe %

≤0.002 

≤0.003 

≤0.005

Heavy metal %

≤0.002 

≤0.003 

≤0.005 

Arsenic (As) %

≤0.0003 

≤0.0005 

≤0.001 

Residue on Ignition %

≤0.05 

≤0.1 

≤0.15 

Loss on dry  %

≤0.1 

≤0.3

≤0.5 

PH value (20% Aq. solution)

10.5-11.0

10.5-11.0

10.5-11.0

Index of central control

Whiteness %

≥85 

≥80 

75-85 

Transmission (15% solution) %

≥95 

≥90

≥85 

Foreign substance detection

≤1mm/10

≤1mm/10

≤1mm/10

Granularity (U.S.SCREEN)      mesh

95% pass 325-500 mesh

90% pass 325-500 mesh

85% pass 325-500 mesh

Shelf life

Two years

Two years

Two years

Supply reference

Production process

Pharmaceutical grade GLY & 99%NaOH   synthesis

Food grade GLY & 99%NaOH synthesis

Industrial grade GLY & 48%NaOH   synthesis

Packing

25kg Paper and plastic, film five   layers/9T/(20')FCL

25kg Paper and plastic, film five   layers/9T/(20')FCL

25kg paper plastic woven three layers   /9T/(20')FCL