Molekula
Potassium thiocyanate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Potassium thiocyanate is a white crystalline solid used in analytical chemistry, as a reagent in qualitative inorganic analysis, and in the production of other chemicals. It is also used in textile printing and dyeing, as a photographic intensifier, in making mustard oil, and as a contact fungicide for greenhouse crops. It is soluble in water and ethanol. CAS: 333-20-0, Molecular formula: KSCN, Molecular weight: 97.18 g/mol, Storage: Ambient, Signal word: Danger.
Molekula supplies Potassium thiocyanate at ≥99% purity in 500 g and 1 kg packs, from £36.00 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £30.00 per pack ex VAT · £36.00 inc. VAT
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1 kg — £38.60 per pack ex VAT · £46.32 inc. VAT
Need a different quantity or pack?
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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Heavy metals | ≤0.002% |
| pH | 6.0 - 9.0 |
| Chloride (Cl-) | <0.04% |
| Assay | ≥99% |
| Residue on Ignition | ≤0.02% |
| Moisture | <2% |
| Iron (Fe) | <0.0002% |
| Sulphates (SO4)(2-) | <0.04% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 173 °C |
Source: PubChem CID 516872 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 16005796 |
| CAS Number | 333-20-0 |
| IUPAC Name | potassium thiocyanate |
| EC Number | 206-370-1 |
| Molecular Formula | KSCN |
| Molecular Weight | 97.18 |
| Exact Mass | 96.9389 |
| SMILES | C(#N)[S-].[K+] |
| InChIKey | ZNNZYHKDIALBAK-UHFFFAOYSA-M |
| InChI | InChI=1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1 |
| PubChem CID | 516872 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2842.90.8080 |
| Tariff Code | 2842907080 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- EUH032 Contact with acids liberates very toxic gas
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H318 Causes serious eye damage
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Arterocyn
- Aterocyn
- Kyonate
- Potassium isothiocyanate
- Potassium rhodanate
- potassium rhodanide
- Potassium sulfocyanate
- Potassium thiocyanide
- Rhocya
- Rodanca
Frequently asked questions
What is potassium thiocyanate used for?
It is commonly used in analytical chemistry as a reagent for detecting metal ions, particularly iron, and in the synthesis of organic compounds.
What is the chemical formula and molecular weight of potassium thiocyanate?
The formula is KSCN and the molecular weight is 97.18 g/mol.
How should potassium thiocyanate be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area, away from incompatible materials.
What grade of potassium thiocyanate does Molekula supply?
Molekula supplies potassium thiocyanate with an assay of ≥99%, with specified limits including heavy metals ≤0.002%, chloride <0.04%, sulphates <0.04%, iron <0.0002%, residue on ignition ≤0.02% and moisture <2%.
Can Molekula supply potassium thiocyanate in bulk?
Yes, Molekula can supply potassium thiocyanate in bulk quantities upon request.
What documentation comes with a purchase of potassium thiocyanate?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Where can I buy Potassium thiocyanate?
Directly from Molekula, which lists Potassium thiocyanate in 500 g and 1 kg packs from £36.00 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.