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Zinc stearate

  • Post Date:

    Jul 04,2025
  • Expiry Date:

    Jul 04,2026
  • Detailed Description:

    Cas No. :557-05-1 Quantity: 100Metric Tons
    Specs:Industrial grade;USP-29;

    1. Product Introduction
    Name:Zinc stearate
    Molecular formula: C36H70O4Zn
    CAS No.:557-05-1
    EINECS No.:209-151-9
    Appearance: white powder

    2.Specification
    (1) Industrial grade,

    Test items

    Specification

    Appearance

    (white and fine powder)

    Assay of Zn

    10.3%~11.3%

    Free acid

    ≤1%

    Loss on drying

    ≤1.0%

    Melting point

    120±5℃

    Particle size

    99.5% 325(≥99.5% through 325 mesh)

    (2)Pharmaceutical grade
    Operative norm: USP29 BP2005

    1. USP29

    Test items

    Specification

    ZnO

    12.5-14

    Alkali and alkali earth

    ≤1.0%

    Arsenic

    ≤1.5PPm

    Lead

    ≤0.001%

    Organic volatile impurities

    conform

    2. BP 2005

    Test items

    Specification

    Fat acid

    195-210

    Melting point

    119-1230C

    Density (kg/L)

    0.20-0.28

    Not through 325mesh

    ≤0.5

    Moisture

    ≤2

    Zn

    10~12

    Chloride

    ≤250PPm

    Sulfates

    ≤0.6

    Cadmium

    ≤5PPm

    Lead

    ≤25PPm

    Acidity and alkali

    conform

    It is used as lubricant, stabilizer, thickener, accelerant etc.

    3. Package and Storage:
    Packing: 20kgs/bag
    Storage: Tightly sealed in a clean,cool,dry area, keep away from strong, direct light.

     

  • CAS Registry Number:

    557-05-1
  • Synonyms:

    ;zinc octadecanoate;zinc stearate/zinc distearate;octadecanoic acid - zinc (2:1);znst;
  • Molecular Formula:

    C36H70O4Zn
  • Molecular Weight:

    632.3635
  • Molecular Structure:

    557-05-1 Zinc stearate
  • Hazard Symbols:

     Xi:Irritant;
  • Risk Codes:

    R37:;
  • Safety Description:

    S22:;
    S26:;
    S36/37/39:;
    S38:;
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