Zinc Stearate Lubricant Release Agent CAS 557-05-1 Factory Direct

• Customization: Available
• CAS No.: 557-05-1
• Formula: 2(C18h35o2)Zn
• Model NO.: 557-05-1
• EINECS: 209-151-9
• Classification: Specific Reagents
• Specific Usage: Lubrication
• Content: Standard
• Usage: Industry
• Source: Extractive
• Habit Appellation: Fine Chemicals
• Application: Industry, Environmental Protection, Agriculture
• Property: Inorganic Reagent
• Transport Package: Polybag
• Specification: >98%
• Trademark: LONGKEY
• Origin: China
• HS Code: 291570
• Production Capacity: 5000mt/M

Product Description

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

Property	Specification/Value
Appearance	Fine white powder, odorless
Density	1.05-1.15 g/cm³
Melting Point	120-130°C (248-266°F)
Boiling Point	Decomposes before boiling
Solubility	Insoluble in water, ethanol, and ether; soluble in hot aromatic hydrocarbons (e.g., benzene, toluene)
pH (10% suspension)	6.0-8.0
Thermal Stability	Stable up to 150°C; decomposes at higher temperatures

 

2. Chemical Composition

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

 

3. Safety and Toxicology

Parameter	Data
Acute Toxicity (Oral)	LD50 (rat) > 5,000 mg/kg (practically non-toxic)
Skin Irritation	Non-irritating (tested on rabbits)
Eye Irritation	May cause mild irritation
Inhalation Risk	Avoid dust inhalation (may irritate respiratory tract)
Environmental Impact	Low 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.