Analysis of petroleum jelly pharmaceutical grade
SPECIFICATIONS | Results | Method | ||
Grade | MPP-120a | MPP-120b | MPP-120c | — |
Flash point | Min 210 °C | Min 212 °C | Min 212 °C | ASTM D-92 |
Congealing point | 50 – 54 °C | 54 – 58 °C | 57 – 61 °C | ASTM D-938 |
Drop melting point | 53 – 58 °C | 57 – 62 °C | 60 – 65 °C | ASTM D-127 |
Kinematic viscosity at 100 °C | 4.5 – 5.5 CST | 4.8 – 5.8 CST | 5.7 – 6.4 Cst | ASTM D-445 |
Penetration consistency | 135 – 160 (0.1mm) | 135 – 160 (0.1mm) | 135 – 160 (0.1mm) | ASTM D-937 |
Sulphated | Less than 0.05 % | Less than 0.05 % | Less than 0.05 % | BP 2010 |
Specific gravity at 60°C | 0.82 – 0.84 | 0.82 – 0.84 | 0.82 – 0.84 | USP |
Color | Max 0.5 Y | Max 0.5 Y | Max 0.5 Y | IP–17 Method A 2” cell |
Polycyclic aromatic hydrocarbons | Not more than absorbance of solution 6mg/l naphthalene in DMSO @278nm | Not more than absorbance of solution 6mg/l naphthalene in DMSO @278nm | Not more than absorbance of solution 6mg/l naphthalene in DMSO @278nm | — |
odor | Odorless When rubbed on hand | Odorless When rubbed on hand | Odorless When rubbed on hand |
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