Potassium nitrite
- CAS Number
- 7758-09-0
- HSN Code
- 28342100
- Molecular Formula
- KNO2
- Catalogue Number
- AL01255
- Purity
- 96% min
- Molecular Weight
- 85.11 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Potassium nitrite (extra pure) is a soluble reducing/oxidizing potassium salt that serves multiple roles in various industries. It is primarily recognized for its application as a food-preservative reagent and as a reference compound in analytical chemistry. This compound is notable for its high purity level of 96%, making it suitable for sensitive applications where contamination must be minimized. With a CAS number of 7758-09-0, potassium nitrite is widely used in organic synthesis, particularly in diazotization reactions, which are crucial for the production of azo dyes and other organic compounds.
Also known as Nitrous acid, potassium salt.
- Catalogue No.
- AL01255
- CAS Number
- 7758-09-0
- Molecular Formula
- KNO2
- Molecular Weight
- 85.11 g/mol
- HSN Code
- 28342100
- Grade
- Extra Pure
- Product Form
- Substance
Potassium nitrite appears as a white to pale yellow crystalline powder that is hygroscopic in nature, meaning it can absorb moisture from the air. It has a melting point of approximately 334 °C and a boiling point of around 745 °C. The compound is highly soluble in water, with a solubility of about 200 g/L at 20 °C. Its density is approximately 2.11 g/cm³, and it has a pH value of around 7 in solution, indicating its neutral nature. The compound has a faint, characteristic odor, which is typical of nitrites.
- Appearance
- White to pale yellow crystalline powder
- Shelf Life
- 2 years
- Packaging
- 25 kg bags
- Storage
- Store in a cool, dry place away from heat and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Potassium nitrite
- Catalogue No.
- AL01255
- Product form
- Substance
- CAS Number
- 7758-09-0
- EC Number
- 231-555-9
- Grade
- Extra Pure
- EC Index Number
- 007-001-00-1
- Chemical Formula
- KNO2
- HSN Code
- 28342100
- Synonyms
- Nitrous acid, potassium salt
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a food preservative and in organic synthesis as a diazotization reagent.
- 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 nitrite
- CAS No.
- 7758-09-0
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 immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include headache, dizziness, nausea, and respiratory distress.
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
- Oxidizer; may enhance combustion of other 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
- Evacuate area and ventilate. Avoid dust formation. 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. Avoid release into the environment.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with care. Use gloves and protective eyewear. Avoid contact with skin and eyes.
- 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 sources 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 is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale yellow
- Odour
- Faint, characteristic
- Odour threshold
- Not specified
- pH value
- ~7
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- 334 °C
- Freezing point
- Not specified
- Boiling point
- 745 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not flammable under normal conditions
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.11 g/cm³
- Solubility
- 200 g/L in water at 20 °C
- Log Pow
- Not specified
- 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 strong acids and bases.
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 acids, strong bases, and reducing agents.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if swallowed or inhaled; may cause respiratory irritation.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- Not a skin sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- 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 1488
- UN-No. (IMDG)
- UN 1488
- UN-No. (IATA)
- UN 1488
- UN-No. (ADN)
- UN 1488
- UN-No. (RID)
- UN 1488
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Potassium nitrite
- Proper Shipping Name (IMDG)
- Potassium nitrite
- Proper Shipping Name (IATA)
- Potassium nitrite
- Proper Shipping Name (ADN)
- Potassium nitrite
- Proper Shipping Name (RID)
- Potassium nitrite
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 5.1
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
Potassium nitrite is utilized in various applications across different industries. In the food industry, it serves as a preservative, particularly in cured meats, where it helps to inhibit the growth of harmful bacteria and maintain color. In the field of organic chemistry, it is employed as a diazotization reagent, facilitating the synthesis of azo compounds, which are important in dye manufacturing. Additionally, potassium nitrite is used in the production of fertilizers, as a corrosion inhibitor in cooling systems, and in the synthesis of pharmaceuticals. Its role as a reference compound in analytical chemistry further underscores its importance in research and quality control.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01255
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 85.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 96% min | 96.5% |
| Moisture Content | <1% | 0.5% |
| Residue on Ignition | <0.5% | 0.3% |
| Related Substances | None detected | None detected |
| Solubility | 200 g/L in water at 20 °C | 205 g/L in water at 20 °C |
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 | 96% min | 334 °C | <1% | <0.5% | None detected | 200 g/L in water at 20 °C |
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