This product is made of animal and plant fat by saponification,
hydrolysis or transesterification.
Structural formula:
Molecular formula:92.09 (1987 international
atomic weight)
| Item/ Type |
Glycerin for industrial
use |
Glycerin for cosmetic
use |
Special purpose |
Glycerin for medicine
use |
Appearance |
Transparent, without suspension |
Transparent, without suspension |
Transparent, without suspension |
Transparent, without suspension |
Odor |
No odor |
No odor |
No odor |
No odor |
Luster Hazen |
≤40 |
≤40 |
≤20 |
Potassium
dichromate solution is not more than 0.2ml |
Glycerin % |
≥95.7 |
≥97.0 |
≥98.5 |
≥98.0 |
Density(20oC)gml |
≥1.25003 |
≥1.2533 |
≥1.2572 |
≥1.2569 |
Chloride
( cl )% |
\ |
≤0.01 |
≤0.001 |
≤0.0015 |
Sulfated ash% |
≤0.05 |
≤0.03 |
≤0.01 |
\ |
Acidity or alkalescence
mmo1/100g |
≤0.30 |
≤0.10 |
≤0.064 |
≤0.10 |
Saponification
equivalent mmo1/100g |
≤3 |
≤0.60 |
≤0.60 |
\ |
Reducible substance |
\ |
\ |
no settlement or slivery mirror |
\ |
Fatty acid and
esters
( 0.1mol/LnaOH on 40g glycerin) |
\ |
\ |
\ |
≤3.6 |
Acrolein, dextrose
and ammonium salt |
\ |
\ |
\ |
Take
5ml this product, add 10% KOH solution. Keep it at
60oC for five minutes, no yellowing or
should happen |
As mg/kg |
\ |
\ |
≤2.0 |
≤2.0 |
Heavy metals mg/kg |
\ |
\ |
≤5.0 |
≤2.0 |
Fe mg/kg |
\ |
\ |
\ |
≤2.0 |
Sulfate % |
\ |
\ |
\ |
≤0.002 |
Residue on ignition
mg/20g |
\ |
\ |
\ |
≤2.0 |
Readily carbonizable
substance |
\ |
\ |
\ |
Meet
pharmacopoeia standard |
