Molekula
Sodium hydroxide - aqueous solution 50%
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
Sodium hydroxide is a highly caustic inorganic base commonly used in industrial cleaning, pH adjustment, pulp and paper processing, and chemical synthesis. This 50% aqueous solution delivers strong alkalinity for applications requiring efficient neutralization or saponification. CAS 1310-73-2, molecular formula NaOH, molecular weight 40.00 g/mol. Store at ambient temperature in a tightly sealed container. Signal word: Danger. Molekula supplies Sodium hydroxide 50% aqueous solution 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
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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1 L — £22.80 per pack ex VAT · £27.36 inc. VAT
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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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid, may form transparent precipitate |
| Assay | 49.5 - 51.5% (w/w) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90004910 |
| CAS Number | 1310-73-2 |
| IUPAC Name | sodium hydroxide |
| EC Number | 215-185-5 |
| Molecular Formula | NaOH |
| Molecular Weight | 40.00 |
| Exact Mass | 39.9925 |
| SMILES | [OH-].[Na+] |
| InChIKey | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| InChI | InChI=1S/Na.H2O/h;1H2/q+1;/p-1 |
| PubChem CID | 14798 |
| UN Number | UN1824 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28151200 |
| Tariff Code | 2815120000 |
Safety & GHS
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Corrosive
GHS05
Hazard statements
- H290 May be corrosive to metals
- H314 Causes severe skin burns and eye damage
Precautionary statements
- P234 Keep only in original container
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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
Documents
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 a 50% aqueous sodium hydroxide solution commonly used for?
This solution is widely used in industrial cleaning, pH adjustment, pulp and paper processing, textile manufacturing, and as a reagent in chemical synthesis.
What is the chemical formula and molecular weight of sodium hydroxide?
The chemical formula is **NaOH**, and the molecular weight is **40.00 g/mol** (anhydrous).
How should a 50% sodium hydroxide solution be stored?
Store in a tightly sealed container at **ambient temperature**, away from incompatible substances like acids, aluminum, and organic materials.
What grades of sodium hydroxide solution does Molekula supply?
Molekula supplies **technical-grade** 50% aqueous sodium hydroxide solutions, suitable for industrial applications.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk supply options for 50% sodium hydroxide solutions, with flexible packaging (e.g., drums, IBCs) based on customer requirements.
What documentation comes with an order of sodium hydroxide solution?
Each order includes a **Material Safety Data Sheet (MSDS)**, **Certificate of Analysis (CoA)**, and **Dangerous Goods Declaration** where applicable.
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.