Molekula
Sodium hydroxide 35% w/v solution
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 (NaOH) is a strong alkaline chemical widely used in industrial cleaning, pH adjustment, and chemical processing. This 35% w/v solution delivers high reactivity for applications like water treatment, soap manufacturing, and food processing. It has a CAS number of 1310-73-2, a molecular weight of 40.00, and requires ambient storage. The product carries a **Danger** signal word due to its corrosive properties. Molekula supplies Sodium hydroxide 35% w/v 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
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 |
|---|---|
| Density | 1.3g/cm3 |
| Melting Point | 9°C |
| Boiling Point | 119°C |
| pH | ≥14 |
| Solubility | Miscible in water |
| Assay | Approx. 35% |
| Chlorides | ≤0.002% |
| Heavy Metals (Pb) | ≤0.001% |
| Carbonates (Na2CO3) | ≤1.0% |
| Iron (Fe) | ≤0.001% |
| Aluminium (Al) | ≤0.001% |
| Sulphates (SO4)(2-) | ≤0.003% |
| Silicates | ≤0.005% |
| Phosphate ions | ≤0.002% |
| Total nitrogen (N) | ≤0.005% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90036673 |
| 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
-
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, 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
- Aetznatron
- Caustic soda
- Collo-Grillrein
- Natriumhydroxid
- Plung
- Rohrputz
- Soda lye
- Soda, caustic
- Sodium hydrate
- White caustic
Frequently asked questions
What is sodium hydroxide 35% w/v 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**.
What safety classification does sodium hydroxide 35% w/v solution have?
The signal word for this product is **Danger**, indicating it is corrosive and requires careful handling.
How should sodium hydroxide 35% w/v solution be stored?
Store at **ambient temperature** in a tightly sealed, corrosion-resistant container, away from incompatible substances.
Does Molekula supply sodium hydroxide in bulk quantities?
Yes, Molekula can supply sodium hydroxide 35% w/v solution in bulk, with quantities tailored to your requirements.
What documentation is provided with an order of sodium hydroxide?
Each order includes a **Material Safety Data Sheet (MSDS/SDS)**, 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.