Potassium Nitrate
- CAS Number
- 7757-79-1
- HSN Code
- 28342100
- Molecular Formula
- KNO3
- Catalogue Number
- AL01254
- Purity
- 99%
- Molecular Weight
- 101.10 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Potassium nitrate (KNO3), also known as saltpeter, is a white crystalline solid that serves as a vital chemical compound in various applications. This extra-pure grade of potassium nitrate offers higher purity for more precise analytical research applications, making it suitable for laboratory use and industrial processes. With a CAS number of 7757-79-1, it is classified as an oxidizer and is essential in the production of fertilizers, food preservation, and pyrotechnics. Its high solubility in water enhances its utility in various chemical reactions and formulations.
Also known as Saltpeter, Niter.
- Catalogue No.
- AL01254
- CAS Number
- 7757-79-1
- Molecular Formula
- KNO3
- Molecular Weight
- 101.10 g/mol
- HSN Code
- 28342100
- Grade
- Extra Pure
- Product Form
- Substance
Potassium nitrate appears as a white crystalline powder, characterized by its high solubility in water, which is approximately 31.6 g/100 mL at 20°C. The melting point of potassium nitrate is around 334°C, and it decomposes upon heating, releasing nitrogen oxides. The density of potassium nitrate is approximately 2.11 g/cm³. It has a boiling point of 400°C, and its vapour pressure is negligible at room temperature, making it stable under normal conditions. The compound has a pH value of around 6.0 to 8.0 in a 1% aqueous solution, indicating its neutral to slightly alkaline nature.
- Appearance
- White crystalline powder
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, dry place away from combustible materials.
1.1 — Product identifier
- Chemical Name
- Potassium Nitrate
- Catalogue No.
- AL01254
- Product form
- Substance
- CAS Number
- 7757-79-1
- EC Number
- 231-818-8
- Grade
- Extra Pure
- EC Index Number
- 007-001-01-9
- Chemical Formula
- KNO3
- HSN Code
- 28342100
- Synonyms
- Saltpeter, Niter
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as an oxidizer, fertilizer, and in food preservation.
- 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
- Oxidizer; may cause fire or explosion in contact with combustible materials.
3.1 — Substance
- Name
- Potassium Nitrate
- CAS No.
- 7757-79-1
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
- Irritation of eyes, skin, and respiratory tract; potential for gastrointestinal distress if ingested.
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
- May cause or enhance fire; keep away from combustible materials.
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 prevent entry into waterways. Use appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- 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
- 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 heat and direct sunlight.
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 is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 6.0 - 8.0 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 334°C
- Freezing point
- Not applicable
- Boiling point
- 400°C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- >400°C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Negligible at room temperature
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.11 g/cm³
- Solubility
- 31.6 g/100 mL (20°C)
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Oxidizer
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; may react with reducing 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 reducing agents, acids, and combustible materials.
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
- 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)
- UN 1486
- UN-No. (IMDG)
- UN 1486
- UN-No. (IATA)
- UN 1486
- UN-No. (ADN)
- UN 1486
- UN-No. (RID)
- UN 1486
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Potassium Nitrate
- Proper Shipping Name (IMDG)
- Potassium Nitrate
- Proper Shipping Name (IATA)
- Potassium Nitrate
- Proper Shipping Name (ADN)
- Potassium Nitrate
- Proper Shipping Name (RID)
- Potassium Nitrate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 5.1
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
Potassium nitrate is widely used in various industries, particularly in agriculture as a high-nitrogen fertilizer that promotes plant growth. In the food industry, it serves as a preservative and curing agent for meats, enhancing flavor and color. Additionally, potassium nitrate is utilized in the manufacture of fireworks and explosives due to its oxidizing properties. In analytical chemistry, it is employed as a reference compound for calibrating instruments and conducting precise measurements in potassium nitrate chemistry research. Its role in the production of glass and ceramics further underscores its versatility in industrial applications.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01254
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 101.10 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99% min | 99.5% |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Solubility | 31.6 g/100 mL | 32.0 g/100 mL |
The above product is expected to comply with Extra Pure grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| Extra Pure | 99% | 334°C | <0.5% | <0.1% | None detected | 31.6 g/100 mL (20°C) |
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