substance
Ammonium hydroxide
Ammonia in aqueous solution (ChEBI: a solution of ammonia in water); the formula is NH3.H2O by convention. A flow of it says its NH3 strength (e.g. 25 wt%), and its balance formula is the flow's. A separate node from anhydrous ammonia, so the consumers of ammonia do not link to the solution.
- Formula
- H5NO
- CAS
- 1336-21-6
- InChIKey
- VHUUQVKOLVNVRT-UHFFFAOYSA-N
- ChEBI
- CHEBI:18219
Made by
- Ammonium hydroxide (aqueous ammonia, 25 wt% NH3) by continuous dilution of liquid ammonia in waterMain productConcept · not reviewed
Used by
When a process with this chemical is added to the library, it appears here.
Routes compared
One route in the Atlas makes Ammonium hydroxide: nothing to compare yet. A comparison appears when a second route is added.
Per 1 kg of Ammonium hydroxide: inventory from each route's LCI dataset, unallocated; footprints per the functional unit of their own LCA.
| Route | Tier, design maturity, review status | Geography, year | Energy | Feedstocks | Key emissions | Footprint | Comparability |
|---|---|---|---|---|---|---|---|
| Ammonium hydroxide (aqueous ammonia, 25 wt% NH3) by continuous dilution of liquid ammonia in watercontinuous single-stage dilution of anhydrous liquid ammonia with water and cooling of the solution below its boiling point (process of US 4,752,452); absorption of ammonia-plant purge or flash gas is not modelled | Tier 0 (stoichiometric)Design maturity: Concept (research)Not independently reviewedDataset review: unreviewed | GLO, 2026 |
|
| none | no footprint | – |
ISO 14044 requires a critical review (by a panel of interested parties, ISO/TS 14071) of a comparative assertion intended to be disclosed to the public. These routes are listed side by side for screening; a statement that one is better than another needs that review. None of these routes has had such a review.