Molekula
Potassium nitrate with ACA
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Potassium nitrate (KNO3, CAS 7757-79-1) is an inorganic salt widely used as an oxidizer in pyrotechnics, fertilizers, and food preservation (E252). It is a stable, white crystalline solid with a molecular weight of 101.10 g/mol, stored safely at ambient temperatures. Classified under GHS with a warning signal word, it requires proper handling for industrial applications. Molekula supplies Potassium nitrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Cream to light tan crystals from ACA treatment |
| Heavy metals | ≤5ppm |
| pH | 6.0 - 8.5 (5% solution) |
| Chloride (Cl-) | ≤0.075% |
| Purity | ≥99.5% |
| Bulk density | 1.1 - 1.2 t/m3 |
| Water insoluble matter | ≤0.03% |
| Iron (Fe) | ≤15ppm |
| Sodium (Na) | ≤0.05% |
| Sulphates (SO4)(2-) | ≤500ppm |
| Nitrogen (N) | ≥13.7% |
| Anti-Caking Agent | ≤0.2% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless, rhombic or trigonal crystals |
| Odour | Odorless |
| Melting Point | 337 °C |
| Boiling Point | 400 °C (decomp) |
| Refractive Index | 1.335 |
Source: PubChem CID 24434 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90035370 |
| CAS Number | 7757-79-1 |
| IUPAC Name | potassium nitrate |
| EC Number | 231-818-8 |
| Molecular Formula | KNO3 |
| Molecular Weight | 101.10 |
| Exact Mass | 100.9515 |
| SMILES | [N+](=O)([O-])[O-].[K+] |
| InChIKey | FGIUAXJPYTZDNR-UHFFFAOYSA-N |
| InChI | InChI=1S/K.NO3/c;2-1(3)4/q+1;-1 |
| PubChem CID | 24434 |
| UN Number | UN1486 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2834.21.00.00 |
| Tariff Code | 2834210000 |
Safety & GHS
-
Oxidizing
GHS03
-
Health Hazard
GHS07
Hazard statements
- H272 May intensify fire; oxidizer
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P220 Keep/Store away from clothing/combustible materials
- P221 Take any precaution to avoid mixing with combustibles
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Kalii nitras
- Kaliumnitrat
- Niter
- Nitrate of potash
- Nitre
- Nitric acid, potassium salt
- POTASSIUM NITRATE
- Saltpeter
- saltpetre
- Vicknite
Frequently asked questions
What is potassium nitrate (KNO3) with ACA commonly used for?
Potassium nitrate is primarily used as an oxidizer in pyrotechnics, fertilizers, and food preservation (e.g., as a curing salt). In this product name, ACA means an anti-caking agent has been added, as is typical for fertilizer and technical grades; it is not a high-purity analytical grade.
What is the chemical formula and molecular weight of potassium nitrate?
The chemical formula is KNO₃, and the molecular weight is 101.10 g/mol.
How should potassium nitrate with ACA be stored?
Store at ambient temperature in a cool, dry place, away from combustible materials. Ensure the container is tightly sealed.
What grades of potassium nitrate does Molekula supply?
Molekula supplies potassium nitrate with ACA (anti-caking agent), a grade containing an added anti-caking agent, as is typical for fertilizer and technical-grade material.
Can Molekula supply potassium nitrate in bulk quantities?
Yes, Molekula can provide potassium nitrate in bulk, with quantities tailored to your specific requirements—please contact us for details.
What documentation comes with an order of potassium nitrate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation confirming purity.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.