Potassium Nitrate
- CAS Number
- 7757-79-1
- HSN Code
- 28342100
- Molecular Formula
- KNO3
- Catalogue Number
- AL1254B
- 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, with the CAS number 7757-79-1, is a white crystalline powder that serves as a vital reagent in molecular biology and plant physiology. This high-purity grade (99%) is specifically purified for applications in buffer preparation and other biochemical processes. As an oxidizing agent, potassium nitrate plays a crucial role in various chemical reactions and is widely used in laboratories for its reliable performance. Its ability to provide both potassium ions and nitrate makes it an essential component in plant nutrient solutions and research applications.
Also known as Saltpeter, Niter.
- Catalogue No.
- AL1254B
- CAS Number
- 7757-79-1
- Molecular Formula
- KNO3
- Molecular Weight
- 101.10 g/mol
- HSN Code
- 28342100
- Grade
- For Molecular Biology
- Product Form
- Substance
Potassium nitrate appears as a white crystalline powder with a characteristic odorless nature. It has a melting point of 334 °C and a boiling point of 400 °C, decomposing upon further heating. The density of potassium nitrate is approximately 2.11 g/cm³, and it is freely soluble in water, with a solubility of about 31.6 g/100 mL at 20 °C. The compound has a pH value of around 6.0 to 7.0 in a saturated aqueous solution, indicating its neutral nature. It is also hygroscopic, absorbing moisture from the air, which can affect its handling and storage.
- Appearance
- White crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 500 g and 1 kg plastic containers
- Storage
- Store in a cool, dry place away from combustible materials and reducing agents.
1.1 — Product identifier
- Chemical Name
- Potassium Nitrate
- Catalogue No.
- AL1254B
- Product form
- Substance
- CAS Number
- 7757-79-1
- EC Number
- 231-818-8
- Grade
- For Molecular Biology
- EC Index Number
- 007-001-00-1
- 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 a nitrate source in plant nutrient solutions and molecular biology 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
- 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
- May cause irritation to the respiratory tract, 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
- Oxidizing agent; 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
- Contain spill and collect using appropriate protective equipment. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Sweep up and place in a suitable container for disposal.
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. Keep away from heat and sources of ignition.
- 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 such as reducing agents and combustible substances.
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 - 7.0 (in saturated solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 334 °C
- Freezing point
- Not applicable
- Boiling point
- 400 °C (decomposes)
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Above 400 °C
- Flammability (solid, gas)
- Not flammable, but an oxidizer
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.11 g/cm³
- Solubility
- 31.6 g/100 mL (at 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. Reacts with reducing agents and combustible materials.
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
- Reducing agents, combustible materials, acids.
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 extensively used in molecular biology as a source of potassium ions and nitrates, essential for various biochemical reactions and plant growth studies. It is commonly utilized in buffer solutions for electrophoresis and chromatography, aiding in the stabilization of pH levels during experiments. Additionally, potassium nitrate serves as a fertilizer in agriculture, promoting healthy plant growth by providing necessary nutrients. Its role in the synthesis of other chemicals and its use in pyrotechnics further highlight its versatility across different industries.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1254B
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 101.10 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 99% | 99.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| pH Value | 6.0 - 7.0 | 6.5 |
| Solubility | Freely soluble in water | Soluble at 20 °C |
The above product is expected to comply with For Molecular Biology grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| For Molecular Biology | ≥ 99% | 334 °C (melting) | ≤ 0.5% | ≤ 0.1% | None detected | Freely soluble in water |
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