CAS 557-05-1

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CAS 557-05-1

Regulatory Compliance
FDA: Compliant with 21 CFR §178.2010 (indirect food contact).

REACH: Registered in the EU (no SVHC listed).

RoHS: Compliant (lead, cadmium, mercury < 0.1%).

ISO 9001: Quality management certified by manufacturers.


First Aid Measures
Inhalation: Move to fresh air. Seek medical attention if symptoms persist.

Skin Contact: Wash with soap and water.

Eye Contact: Rinse with water for 15 minutes; consult a physician.

Ingestion: Rinse mouth; do NOT induce vomiting.

Disposal
Dispose of in accordance with local regulations. Do not release into waterways.

For full Material Safety Data Sheet (MSDS), analytical reports (COA), or custom specifications, contact us direct.
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Zinc Stearate Chemical Data Sheet

CAS No.: 557-05-1
Molecular Formula: C36H70O4Zn   /   2(C18H35O2)Zn
Molecular Weight: 632.35 g/mol

 

1. Chemical and Physical Properties

PropertySpecification/Value
AppearanceFine white powder, odorless
Density1.05-1.15 g/cm³
Melting Point120-130°C (248-266°F)
Boiling PointDecomposes before boiling
SolubilityInsoluble in water, ethanol, and ether; soluble in hot aromatic hydrocarbons (e.g., benzene, toluene)
pH (10% suspension)6.0-8.0
Thermal StabilityStable up to 150°C; decomposes at higher temperatures

 

2. Chemical Composition

ComponentContent (%)
Zinc (Zn)10.5-12.5
Stearic Acid (free)≤1.0
Moisture≤0.5
Heavy Metals (as Pb)≤20 ppm

 

3. Safety and Toxicology

ParameterData
Acute Toxicity (Oral)LD50 (rat) > 5,000 mg/kg (practically non-toxic)
Skin IrritationNon-irritating (tested on rabbits)
Eye IrritationMay cause mild irritation
Inhalation RiskAvoid dust inhalation (may irritate respiratory tract)
Environmental ImpactLow toxicity to aquatic life; biodegradable

 

4. Handling and Storage

  • Storage:

    • Keep in a cool, dry, well-ventilated area (<30°C).

    • Seal containers tightly to prevent moisture absorption.

  • Handling Precautions:

    • Use PPE: gloves, safety goggles, and dust masks.

    • Avoid contact with strong acids or oxidizers (may release toxic fumes).

 

5. Applications

  • Polymers & Plastics:

    • Lubricant and mold release agent in PVC, rubber, and polyolefins.

    • Thermal stabilizer for PVC processing.

  • Coatings & Paints:

    • Anti-settling agent and matting agent.

  • Cosmetics:

    • Approved for use in powders and creams (non-toxic grades).

 

6. Regulatory Compliance

  • FDA: Compliant with 21 CFR §178.2010 (indirect food contact).

  • REACH: Registered in the EU (no SVHC listed).

  • RoHS: Compliant (lead, cadmium, mercury < 0.1%).

  • ISO 9001: Quality management certified by manufacturers.

 

7. First Aid Measures

  • Inhalation: Move to fresh air. Seek medical attention if symptoms persist.

  • Skin Contact: Wash with soap and water.

  • Eye Contact: Rinse with water for 15 minutes; consult a physician.

  • Ingestion: Rinse mouth; do NOT induce vomiting.

 

8. Disposal

  • Dispose of in accordance with local regulations. Do not release into waterways.

         For full Material Safety Data Sheet (MSDS), analytical reports (COA), or custom specifications, contact us direct.


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