Molekula
Potassium Sulphate Type 2 Def Stan 68-54/2
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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 Sulphate Type 2 Def Stan 68-54/2 is a high-purity, water-soluble inorganic salt primarily used in fertilizers, food processing, and industrial applications where potassium is required. This grade meets UK Defence Standard 68-54/2 specifications for military and aerospace use. Catalogue details: CAS 7778-80-5, molecular formula K₂SO₄, molecular weight 174.26 g/mol. Stored at ambient conditions with no hazard classification. Molekula supplies Potassium Sulphate Type 2 Def Stan 68-54/2 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
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Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White/ off white/ pale blue powder |
| Chloride (Cl-) | ≤40mg/kg |
| Bulk density | ca 1,600 kg/m3 |
| Solubility in water | W (K2SO4) = 10% 20°C (69°F) |
| Calcium (Ca) | ≤200mg/kg |
| Magnesium (Mg) | ≤20mg/kg |
| Sodium (Na) | ≤1000mg/kg |
| Granulometry d50 (mm) | 0.23 |
| Loss on Drying @ (130°C) | ≤1.0% |
| K2S04 calculated with reference to the dried substance (%) | 99.0-100.5 |
| Angle Response (°) | ca. 33° |
| Granulometry <0.5mm (%) | 97 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless or white crystals, or white granules or powder |
| Odour | Odorless |
| Melting Point | 1067 °C |
| Boiling Point | 1689 °C |
| Solubility (other solvents) | Freely soluble in water, insoluble in ethanol |
| Refractive Index | 1.494 |
Source: PubChem CID 24507 (HSDB, ICSC, EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 90023783 |
| CAS Number | 7778-80-5 |
| IUPAC Name | dipotassium;sulfate |
| EC Number | 231-915-5 |
| Molecular Formula | K2SO4 |
| Molecular Weight | 174.26 |
| Exact Mass | 173.8791 |
| SMILES | [O-]S(=O)(=O)[O-].[K+].[K+] |
| InChIKey | OTYBMLCTZGSZBG-UHFFFAOYSA-L |
| InChI | InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| PubChem CID | 24507 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 31051000 |
| Tariff Code | 3105100090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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
No alternate names recorded for this product.
Frequently asked questions
What is Potassium Sulphate Type 2 Def Stan 68-54/2 used for?
This grade of potassium sulphate is a military-grade material used mainly as a flash suppressant (flash reducer) in gun propellants and pyrotechnic compositions, meeting UK Ministry of Defence specifications.
What is the chemical formula and molecular weight?
The chemical formula is K₂SO₄, with a molecular weight of 174.26 g/mol.
How should Potassium Sulphate Type 2 Def Stan 68-54/2 be stored?
Store in a cool, dry, and well-ventilated area at ambient temperature, away from incompatible substances.
What grade or specification does this product meet?
This product meets Def Stan 68-54/2, a UK Ministry of Defence specification for military-grade potassium sulphate.
Can Molekula supply this product in bulk quantities?
Yes, Molekula can supply Potassium Sulphate Type 2 Def Stan 68-54/2 in bulk, with quantities tailored to customer requirements.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and Def Stan 68-54/2 compliance certificate.
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.