Molekula
Potassium hydroxide 45% (w/w)
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 hydroxide 45% (w/w) is a strong alkaline chemical used in industrial processes such as soap manufacturing, battery production, and chemical synthesis. It is a clear, corrosive liquid with a high pH. CAS: 1310-58-3, molecular formula: KOH, molecular weight: 56.106 g/mol. Stored at ambient temperatures. Signal word: Danger. Molekula supplies Potassium hydroxide 45% (w/w) 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.
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 | Colourless solution |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90030945 |
| CAS Number | 1310-58-3 |
| IUPAC Name | potassium hydroxide |
| EC Number | 215-181-3 |
| Molecular Formula | KOH |
| Molecular Weight | 56.106 |
| Exact Mass | 55.9664 |
| SMILES | [OH-].[K+] |
| InChIKey | KWYUFKZDYYNOTN-UHFFFAOYSA-M |
| InChI | InChI=1S/K.H2O/h;1H2/q+1;/p-1 |
| PubChem CID | 14797 |
| UN Number | UN1814 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2815.20.0090 |
| Tariff Code | 2815200000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H290 May be corrosive to metals
- H302 Harmful if swallowed
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P406 Store in a corrosive resistant container with a resistant inner liner
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.
Synonyms
- Caswell No. 693
- Caustic potash
- Cyantek CC 723
- Hydroxyde de potassium
- Kali causticum
- Potash lye
- Potassa
- Potasse caustique
- Potassium hydrate
- Potassium hydroxide (K(OH))
Frequently asked questions
What is potassium hydroxide 45% (w/w) used for?
It is commonly used in the production of soaps, detergents, and industrial cleaning agents, as well as in chemical synthesis and battery manufacturing.
What is the chemical formula and molecular weight of potassium hydroxide 45% (w/w)?
The formula is KOH with a molecular weight of 56.106 g/mol.
How should potassium hydroxide 45% (w/w) be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area, away from moisture and incompatible materials.
What grade of potassium hydroxide 45% (w/w) is available?
This product is available as a technical grade, suitable for industrial and laboratory applications.
Can Molekula supply potassium hydroxide 45% (w/w) in bulk?
Yes, Molekula can supply potassium hydroxide 45% (w/w) in bulk quantities; please contact our sales team for pricing and delivery options.
What documentation comes with an order of potassium hydroxide 45% (w/w)?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
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.