Molekula
Ammonia 4% solution in water
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
Ammonia 4% solution in water is a dilute aqueous ammonia used primarily in cleaning agents, pH adjustment, and laboratory applications for its alkaline properties. This solution contains 4% by weight ammonia (NH₄OH) with a molecular weight of 35.05 g/mol, stored safely at ambient conditions. The product carries a signal word of "Warning" per GHS classification. Molekula supplies Ammonia 4% 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 |
|---|---|
| Appearance | Clear colourless liquid |
| Assay | 3.5-4.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90035155 |
| CAS Number | 1336-21-6 |
| IUPAC Name | azanium hydroxide |
| EC Number | 215-647-6 |
| Molecular Formula | NH4OH |
| Molecular Weight | 35.05 |
| Exact Mass | 35.0371 |
| SMILES | [NH4+].[OH-] |
| InChIKey | VHUUQVKOLVNVRT-UHFFFAOYSA-N |
| InChI | InChI=1S/H3N.H2O/h1H3;1H2 |
| PubChem CID | 14923 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3102800000 |
| Tariff Code | 2814200000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P403+233 Store in a well ventilated place. Keep container tightly closed
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
No alternate names recorded for this product.
Frequently asked questions
What is a 4% ammonia solution in water commonly used for?
This diluted ammonia solution is primarily used for cleaning, pH adjustment in laboratories, and as a reagent in chemical synthesis.
What is the chemical formula and molecular weight of this ammonia solution?
The chemical formula is **NH₄OH** (ammonium hydroxide), with a molecular weight of **35.05 g/mol** for the solute.
How should this 4% ammonia solution be stored?
Store at **ambient temperature** in a tightly sealed container, away from incompatible substances like acids or oxidizing agents.
What grade or purity is available for this ammonia solution?
Molekula supplies this as a **laboratory reagent grade**, suitable for general lab applications and industrial cleaning.
Can Molekula supply this ammonia solution in bulk quantities?
Yes, we can provide this solution in bulk—please contact us for specific packaging options and minimum order quantities.
What documentation comes with an order of this ammonia solution?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), 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.