Stearic Acid
- CAS Number
- 57-11-4
- HSN Code
- 29157020
- Molecular Formula
- C18H36O2
- Catalogue Number
- AL1454A
- Purity
- 99%
- Molecular Weight
- 284.48 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
STEARIC ACID 99% AR is a high-purity analytical reagent known for its precise control over purity, making it ideal for analytical applications in various scientific fields. This fatty acid is a saturated long-chain carboxylic acid, characterized by its waxy solid state at room temperature. With a molecular formula of C18H36O2 and a molecular weight of 284.48 g/mol, it is widely utilized in lipid chemistry and other research areas requiring high-quality reagents. Its notable properties include a faint tallow-like odor, which is typical for fatty acids, and its classification as an AR (Analytical Reagent) grade ensures it meets stringent quality standards for laboratory use.
Also known as Octadecanoic acid, Stearic acid, 1-Octadecanoic acid.
- Catalogue No.
- AL1454A
- CAS Number
- 57-11-4
- Molecular Formula
- C18H36O2
- Molecular Weight
- 284.48 g/mol
- HSN Code
- 29157020
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
STEARIC ACID 99% AR appears as a white waxy solid with a faint tallow-like odor. It has a melting point of approximately 69.3 °C and a boiling point of around 361 °C. The density of stearic acid is about 0.849 g/cm³ at 20 °C. It is insoluble in water but soluble in organic solvents such as ethanol and ether. The flash point is approximately 204 °C, indicating its relatively high ignition temperature. The vapor pressure is very low, around 0.0001 mmHg at 25 °C, which reflects its stability under normal conditions.
- Appearance
- White waxy solid
- Shelf Life
- 2 years
- Packaging
- Available in 500g and 1kg containers
- Storage
- Store in a cool, dry place away from direct sunlight.
1.1 — Product identifier
- Chemical Name
- Stearic Acid
- Catalogue No.
- AL1454A
- Product form
- Substance
- CAS Number
- 57-11-4
- EC Number
- 217-666-0
- Grade
- AR
- EC Index Number
- -
- Chemical Formula
- C18H36O2
- HSN Code
- 29157020
- Synonyms
- Octadecanoic acid, Stearic acid, 1-Octadecanoic acid
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, emulsifier, and lubricant
- 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
- None identified
3.1 — Substance
- Name
- Stearic Acid
- CAS No.
- 57-11-4
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- May cause mild irritation to skin and eyes.
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
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Combustible material; may produce toxic fumes when burned.
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 inert absorbent material. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate protective equipment. Avoid release into the environment.
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
- Store in a cool, dry place, away from incompatible materials.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Not required under normal conditions; use in well-ventilated areas.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Faint tallow-like
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 69.3 °C
- Freezing point
- Not applicable
- Boiling point
- 361 °C
- Flash point
- 204 °C
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- 0.0001 mmHg at 25 °C
- Relative vapour density at 20°C
- Not applicable
- Density
- 0.849 g/cm³ at 20 °C
- Solubility
- Insoluble in water; soluble in organic solvents
- Log Pow
- Not applicable
- 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; avoid strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
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, strong acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; LD50 (oral, rat) > 2000 mg/kg.
- Skin corrosion/irritation
- Mild irritant; may cause redness.
- Serious eye damage/irritation
- Mild irritant; may cause redness.
- 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)
- Not classified as dangerous goods.
- UN-No. (IMDG)
- Not classified as dangerous goods.
- UN-No. (IATA)
- Not classified as dangerous goods.
- UN-No. (ADN)
- Not classified as dangerous goods.
- UN-No. (RID)
- Not classified as dangerous goods.
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not applicable
- Proper Shipping Name (IMDG)
- Not applicable
- Proper Shipping Name (IATA)
- Not applicable
- Proper Shipping Name (ADN)
- Not applicable
- Proper Shipping Name (RID)
- Not applicable
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not applicable
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
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
STEARIC ACID 99% AR is primarily used as an analytical-grade reference fatty acid in lipid chemistry research, where it serves as a standard for various analytical techniques. It is also utilized in the production of soaps, cosmetics, and emulsifiers due to its emulsifying properties. In the pharmaceutical industry, it is used as an excipient in drug formulations. Additionally, stearic acid finds applications in the food industry as a food additive and in the manufacturing of candles and lubricants.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1454A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 284.48 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99% min | 99.5% |
| Melting Point | 69.0 - 70.0 °C | 69.5 °C |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 99% | 69.3 °C / 361 °C | <0.5% | <0.1% | None detected | Insoluble in water, soluble in organic solvents |
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