Name:Sodium stearate
molecular formula: CH3(CH2)16COONa
Appearance: white powder, fatty odor, greasy to the touch, dissolve in hot water ,soluble in hot water,hot alcohol,resolve into stearate acid and sodium salt.
Main usage: Be widely used in food,medicine,cosmetic,plastic, metal processing, metal removal,etc. industry;used as densifier,emulsifier,corrosion inhibitor,adhesive and so on.
1)Industrial grade
|
inspection item
|
standard requirement |
| acid value |
196~211
|
| iodine value |
≤1.0
|
| acidity (count as stearate acid) |
0.28%~1.2%
|
| loss on drying |
≤5.0%
|
| content |
≥99.5%
|
| particle size |
99%pass when 200 mesh |
2)food grade
Executive standard: Q/HLX002-2007
|
inspection item
|
standard requirement |
| acid value |
196~211
|
| iodine value |
≤4.0
|
| acidity (count as stearate acid) |
0.28%~1.2%
|
| arsenic (As) |
≤3mg/kg
|
| heavy metal |
≤0.0015%
|
| loss on drying |
≤4.0%
|
| content |
≥98.0%
|
3)pharmaceutical grade
Executive standard: USP29-NF24
|
Inspection item
|
Standard requirement
|
|
acid value of fatty acid
|
196~211
|
|
iodine value of fatty acid
|
≤4.0%
|
|
Acidity(stearic acid)
|
0.28%~1.2%
|
|
loss on drying
|
≤5.0%
|
|
organic solvent volatilize impurity
|
complies
|
|
heavy metal
|
≤0.0005%
|
|
alcohol undissolved substance
|
complies
|
|
stearic acid
|
≥40.0%
|
|
stearic acid and palmitic acid content
|
≥90.0%
|
|
