Molekula
Sodium hydroxide - aqueous solution 25%
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
Sodium hydroxide is a strong alkaline chemical commonly used in industrial cleaning, pH adjustment, and chemical synthesis. This 25% aqueous solution is a versatile reagent for laboratory and manufacturing applications, offering controlled reactivity and ease of handling. CAS 1310-73-2, molecular formula NaOH, molecular weight 40.00 g/mol. Store at ambient conditions. Signal word: Danger. Molekula supplies Sodium hydroxide - aqueous solution 25% 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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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless to pale yellow solution |
| Assay (Mass Balance) | 24.50%-25.50% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90034550 |
| 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 |
| Tariff Code | 2815120000 |
Safety & GHS
-
Corrosive
GHS05
Hazard statements
- H290 May be corrosive to metals
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
Precautionary statements
- P261 Avoid breathing 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
- P306+360 IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes
- P308+313 IF exposed or concerned: Get medical advice/attention
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
No alternate names recorded for this product.
Frequently asked questions
What is sodium hydroxide (25% aqueous 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 its molecular weight is **40.00 g/mol** (anhydrous).
How should sodium hydroxide (25% aqueous solution) be stored?
Store in a tightly sealed container at **ambient temperature**, away from incompatible substances like acids, aluminum, and carbon dioxide.
What grades of sodium hydroxide (25% aqueous solution) does Molekula supply?
Molekula supplies **technical-grade** sodium hydroxide in 25% aqueous solution; purity and specifications are available upon request.
Can Molekula supply sodium hydroxide (25% aqueous solution) in bulk quantities?
Yes, Molekula can provide bulk quantities of this solution—contact us for pricing, lead times, and packaging options.
What documentation comes with an order of sodium hydroxide (25% aqueous solution)?
Each order includes a **Material Safety Data Sheet (MSDS)**, Certificate of Analysis (CoA), and a product specification sheet.
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.