Parteck® LUB STA 50 (Stearic acid 50), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF vegetable grade, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS
Ratings: (No Reviews)

Total Ratings: 0
Avg. Ratings: 0.0 out of 5

Synonyms: Octadecylic acidOctadecanoic acid

1.00661.0250EA 129 GBP
1.00661.0250 1.00661.9020 1.00661.0250S
Parteck® LUB STA 50 (Stearic acid 50), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF vegetable grade, SAFC®
Stearic acid
Formula: C₁₈H₃₆O₂
MW: 284.48 g/mol
Boiling Pt: 361 °C (1013 hPa)
Melting Pt: 67 °C
Density: 0.94 g/cm³ (20 °C)
Flash Pt: 196 °C (closed cup)
Storage Temperature: Refrigerator
MDL Number: MFCD00002752
CAS Number: 57-11-4
EINECS: 200-313-4
Merck Index: 12,08959
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Specification Test Results

Stearic acid (GC) 40.0 - 60.0 %
Assay (Stearic acid and palmitinic acid) (GC) ≥ 90.0 %
Identity passes test
Appearance of melt (Ph Eur, BP) passes test
Colour of solution (NF) passes test
Acidity (Ph Eur, NF, BP) passes test
Mineral acids (JP) passes test
Solidification point 54 - 59 °C
Heavy metals (as Pb) ≤ 0.0010 %
Ni (Nickel) ≤ 1 ppm
Residual solvents (Ph.Eur./USP/ICH) excluded by production process
Iodine number ≤ 4.0
Acid value 194 - 210
Neutral fats and mineral fats passes test
Sulfated ash ≤ 0.10 %
Particle Size (d10) ≥ 5 µm
Particle Size (d50) about 35
Particle Size (d90) ≤ 200 µm
Specific surface area (BET) 0.90 - 1.40 m²/g
Microbiological purity (Total aerobic microbial count (TAMC)) ≤ 1E+03 CFU/g
Microbiological purity (Total yeast and mould count (TYMC)) ≤ 1E+02 CFU/g
Bile tolerant Gram negative Bacteria (absent in 1 g) conforms
Escherichia coli (absent in 1 g) conforms
Pseudomonas aeruginosa (absent in 1 g) conforms
Staphylococcus aureus (absent in 1 g) conforms
Candida albicans (absent in 1 g) conforms
Salmonella ssp (absent in 10 g) conforms

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