Stearic Acid | 57-11-4
Specification
|
Testing standard |
USP35-NF30 |
||
|
Specification and model |
SA-4 |
SA-6 |
SA-9 |
| appearance | white or almost white wax crystal, solid or powder | white or almost white wax crystal, solid or powder | white or almost white wax crystal, solid or powder |
| identification | meet the specification | meet the specification | meet the specification |
| freezing point, ℃ | 53~59 | 57~64 | 64~69 |
| acid value | 194-212 | 194-212 | 194-212 |
| iodine value | ≤1.0 | ≤1.0 | ≤1.0 |
| ignition residue, % | ≤0.1 | ≤0.1 | ≤0.1 |
| heavy metal, % | ≤0.001 | ≤0.001 | ≤0.001 |
| stearic acid content, % | 40~45 | 65~70 | ≥90 |
| stearic acid&palmitic acid content, % | ≥90 | ≥90 | ≥96 |
