Sodium Hydroxide
- CAS Number
- 1310-73-2
- HSN Code
- 28151190
- Molecular Formula
- NaOH
- Catalogue Number
- AL01382
- Purity
- ≥ 98%
- Molecular Weight
- 40.00 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium hydroxide flakes (caustic soda flakes) is one of the most fundamental and widely used strong bases across chemistry and industry. It is a white, solid substance that is highly hygroscopic, meaning it readily absorbs moisture from the air. Sodium hydroxide is known for its strong alkaline properties and is commonly used in various applications, including chemical manufacturing, food processing, and water treatment. Its ability to generate significant heat upon dissolution in water makes it a powerful reagent in many chemical reactions.
Also known as Caustic soda, Lye.
- Catalogue No.
- AL01382
- CAS Number
- 1310-73-2
- Molecular Formula
- NaOH
- Molecular Weight
- 40.00 g/mol
- HSN Code
- 28151190
- Grade
- 98%
- Product Form
- Substance
Sodium hydroxide flakes are white in appearance and are typically found in a solid state. The melting point of sodium hydroxide is approximately 318 °C, while its boiling point is around 1380 °C. It has a density of about 2.13 g/cm³ and is highly soluble in water, with a solubility of approximately 111 g/100 mL at 20 °C. The substance has a strong alkaline pH, typically around 13 when dissolved in water. Due to its hygroscopic nature, it can absorb moisture from the environment, which can affect its handling and storage.
- Appearance
- White flakes
- Shelf Life
- No specific shelf life; store in a cool, dry place.
- Packaging
- Available in various packaging options, including 25 kg bags.
- Storage
- Store in a tightly closed container in a cool, dry, well-ventilated area away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium Hydroxide
- Catalogue No.
- AL01382
- Product form
- Substance
- CAS Number
- 1310-73-2
- EC Number
- 215-185-5
- Grade
- 98%
- EC Index Number
- Na
- Chemical Formula
- NaOH
- HSN Code
- 28151190
- Synonyms
- Caustic soda, Lye
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a strong base in various chemical processes and applications.
- 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
- Corrosive to metals; may cause severe burns to skin and eyes.
3.1 — Substance
- Name
- Sodium Hydroxide
- CAS No.
- 1310-73-2
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 skin thoroughly with soap and water. Seek medical attention if irritation develops.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Severe burns, irritation, and damage to 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
- 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
- Non-flammable, but may react with water to produce heat and caustic solutions.
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 neutralize with acid. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Collect and dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with care, using appropriate personal protective equipment such as gloves and goggles.
- 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 moisture and 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
- Use appropriate respiratory protection if dust or mist is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 13 (in solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 318 °C
- Freezing point
- Not applicable
- Boiling point
- 1380 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Non-flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.13 g/cm³
- Solubility
- Freely soluble in water
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Reacts violently with acids and generates heat upon contact with water.
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
- Acids, organic materials, and metals.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Not classified as acutely toxic, but can cause severe burns.
- Skin corrosion/irritation
- Causes severe skin burns and eye damage.
- Serious eye damage/irritation
- Causes serious eye damage.
- Respiratory or skin sensitisation
- Not a skin 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)
- 1823
- UN-No. (IMDG)
- 1823
- UN-No. (IATA)
- 1823
- UN-No. (ADN)
- 1823
- UN-No. (RID)
- 1823
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium Hydroxide, solid
- Proper Shipping Name (IMDG)
- Sodium Hydroxide, solid
- Proper Shipping Name (IATA)
- Sodium Hydroxide, solid
- Proper Shipping Name (ADN)
- Sodium Hydroxide, solid
- Proper Shipping Name (RID)
- Sodium Hydroxide, solid
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 8
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
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
Sodium hydroxide is widely used in various industries due to its strong basic properties. It is commonly employed in the manufacturing of soaps and detergents, where it acts as a key ingredient in the saponification process. Additionally, it is utilized in the production of biodiesel, paper, textiles, and in the food industry for processing and pH adjustment. In laboratories, sodium hydroxide is frequently used in acid-base titrations and as a reagent in various chemical syntheses. Its role in water treatment processes, particularly in adjusting pH levels, is also significant.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01382
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 40.00 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98% | 99.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| pH Value | 13 (in solution) | 13.2 |
| Solubility | Freely soluble in water | Freely soluble |
The above product is expected to comply with 98% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% | ≥ 98% | Melting point: 318 °C; Boiling point: 1380 °C | ≤ 0.5% | ≤ 0.1% | None detected | Freely soluble in water |
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