Zinc Stearate
- CAS Number
- 557-05-1
- HSN Code
- 29157090
- Molecular Formula
- C36H70O4Zn
- Catalogue Number
- AL4853
- Purity
- ≥ 99%
- Molecular Weight
- 632.33 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Zinc stearate is a white, hydrophobic powder with a slight, characteristic odor. Mp: 130 °C. Density: 1.1 g cm-3.
Also known as Zinc octadecanoate.
- Catalogue No.
- AL4853
- CAS Number
- 557-05-1
- Molecular Formula
- C36H70O4Zn
- Molecular Weight
- 632.33 g/mol
- HSN Code
- 29157090
- Grade
- Extra Pure
- Product Form
- Substance
Melting point: 130 °C; Flash point: 277 °C; Density: 1.095 g/cu cm; Solubility: Soluble in benzene; insoluble in water, alcohol and ether.
- Appearance
- White powder free from gritiness
- Shelf Life
- 2 years
- Packaging
- Available in: 500 gm plastic bottle, 5 Kg plastic container
- Storage
- Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.
1.1 — Product identifier
- Chemical Name
- Zinc Stearate
- Catalogue No.
- AL4853
- Product form
- Substance
- CAS Number
- 557-05-1
- EC Number
- 209-151-9
- Grade
- Extra Pure
- EC Index Number
- 607-052-00-8
- Chemical Formula
- C36H70O4Zn
- HSN Code
- 29157090
- Synonyms
- Zinc octadecanoate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Mold-release agent, lubricant, waterproofing agent
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- May cause skin and eye irritation.
3.1 — Substance
- Name
- Zinc Stearate
- CAS No.
- 557-05-1
4.1 — Description of first aid measures
- First-aid measures after inhalation
- If a person breathes large amounts of this chemical, move the exposed person to fresh air at once.
- First-aid measures after skin contact
- If this chemical contacts the skin, wash the contaminated skin with soap and water.
- First-aid measures after eye contact
- If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
- First-aid measures after ingestion
- If this chemical has been swallowed, get medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of skin, eyes, and respiratory tract.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Suitable extinguishing media. Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Contain spill and collect using appropriate methods. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Avoid contact with skin and eyes. Use in a well-ventilated area.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.
8.2 — Exposure controls
- Hand protection
- Handle with gloves. Eye protection: Safety glasses with side-shields conforming to EN166 Skin and body protection: Choose body protection according to the amount and concentration of the dangerous substance at the work place.
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Faint odor
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 130 °C
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- 277 °C
- Auto-ignition temperature
- 788 °F (420 °C)
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- 0 mmHg (approx)
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.095 g/cu cm
- Solubility
- Soluble in benzene; insoluble in water, alcohol and ether
- Log Pow
- 1.2
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on burning. This produces irritating and toxic fumes including zinc oxide.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Zinc stearate decomposes on burning producing irritating and toxic fumes including zinc oxide.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral >5000 mg/kg; LD50 Rat ip 0.25 gkg SRP: 250mgkg; LC50 Rat Inhalation >200 mg/L (1 hr)
- Skin corrosion/irritation
- May cause mild irritation.
- Serious eye damage/irritation
- May cause mild irritation.
- Respiratory or skin sensitisation
- Not a sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- Not classified as a specific target organ toxicant.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- 3077
- UN-No. (IMDG)
- 3077
- UN-No. (IATA)
- 3077
- UN-No. (ADN)
- 3077
- UN-No. (RID)
- 3077
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IMDG)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IATA)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (ADN)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (RID)
- Environmentally hazardous substance, solid, n.o.s.
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 9
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Zinc stearate extra pure is extensively used as a mold-release agent and lubricant in the processing of rubber and plastics, facilitating the easy removal of molded parts from their molds. Additionally, it serves as a waterproofing agent in cosmetic formulations, enhancing the stability and performance of products such as creams and lotions. Its properties also make it suitable for use in pharmaceuticals as a lubricant in tablet formulations. Furthermore, it finds applications in the production of paints and coatings, where it acts as a flow agent and improves the finish of the final product.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01609
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 632.33 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Fine white amorphous powder Odor faint &characteristics | Fine white amorphous powder Odor faint &characteristics |
| Assay (as zinc) | 10 - 12% | 11.1% |
| Identification | Complies | Complies |
| Alkalies & alkaline earth | Complies | Complies |
| Acidity or alkalinity | Complies | <10 ppm |
| Heavy metals | <10 ppm | <250 ppm |
| Chloride (Cl) | <250 ppm | 0.5% |
| Sulphate (SO4) | <0.6% | 1 ppm |
| Arsenic (As) | <2 ppm |
The above product complies with EP grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| Extra Pure | ≥ 99% | m.p. 130 °C | ≤ 0.5% | ≤ 0.5% | None detected | Soluble in benzene; insoluble in water, alcohol and ether |
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“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
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