Product Overview
Ammonium Hydroxide 29% ACS Grade is a concentrated aqueous ammonia solution — a colorless liquid with an intense, pungent ammonia odor and a strongly alkaline character. It is the workhorse base for water-treatment operators raising pH, QC labs running titrations, industrial cleaning formulators, and process buyers who need a precisely defined ammonia solution rather than a diluted household product. The ACS Grade designation is the version analytical and regulated-workflow buyers typically specify when their purchasing documents call for a recognized reagent descriptor and lot-specific purity paperwork to file against it.
We are a distributor, not a manufacturer. Our team at Alliance Chemical packs and ships this product from our Taylor, Texas warehouse under DOT hazmat procedures, and this page is written from that operating experience: what the material is, how it ships, and which pack size fits your process.
Why This Concentration
At 29%, this is a concentrated ammonia solution. That concentration buys you dosing efficiency — less volume to move, store, and meter for a given amount of alkalinity — but it also raises the handling stakes. The solution off-gasses ammonia readily, so every transfer needs ventilation, and the corrosive classification applies in full. If your process only needs bulk alkalinity for cleaning blends, degreasing, or general pH control, and you don't need the ACS reagent descriptor on your paperwork, the same concentration in Ammonium Hydroxide 29% Technical Grade covers those duties at a working-grade price point. Choose ACS Grade when your lab procedures, customer specifications, or audit trail specifically request that designation; choose technical grade when they don't. Comparing them comes down to what your documentation requires, not what the drum contains by strength — the concentration is the same.
Chemical Profile
Ammonium Hydroxide 29% (CAS 1336-21-6, formula H5NO, molecular weight 35.046) is a colorless liquid, fully miscible with water, with a density of 0.90 for the 29% w/w aqueous solution at 20 °C. Its defining physical trait for handlers is high vapor pressure: ammonia off-gasses from solution — roughly 1.5 atm at 25 °C for concentrated aqueous ammonia — which is why an opened container announces itself immediately with a suffocating ammonia odor. The odor is a real workplace signal, not a nuisance: if you smell it strongly, vapor is escaping and ventilation needs attention. The solution may be corrosive to metals (per the product's GHS classification), which drives the container and equipment choices covered below.
Industrial Applications
Buyers order this solution for a short list of well-established jobs:
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pH adjustment in water treatment. A concentrated, water-miscible base that raises pH quickly and meters cleanly through standard chemical feed equipment.
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Chemical synthesis. A precursor and alkaline reagent in the synthesis of downstream compounds, including pharmaceutical intermediates, where the ACS designation is the descriptor purchasing departments ask for.
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Industrial cleaning and degreasing. An alkaline component in cleaning formulations that cuts grease and neutralizes acidic soils.
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Laboratory reagent work. A standard base for titrations and other analytical procedures where a precisely defined concentration matters.
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Fertilizer formulation. A nitrogen source incorporated into agricultural fertilizer blends.
In each case the chemical is doing the same fundamental work — delivering ammonia and hydroxide alkalinity into an aqueous process. What changes between applications is the dilution, the metering, and the documentation your workflow requires.
Handling & Storage
Treat this as a corrosive, high-vapor-pressure liquid from the moment the container is opened. The signal word is Danger, and the governing hazard statements are: H290 May be corrosive to metals; H302 Harmful if swallowed; H314 Causes severe skin burns and eye damage; H335 May cause respiratory irritation; H400 Very toxic to aquatic life (per the product's GHS classification).
Practical rules our warehouse team applies and that we recommend to receivers: wear chemical-resistant gloves and sealed goggles for any transfer; work with strong ventilation, because the ammonia vapor load builds fast in a closed room; keep the product in HDPE or glass — not incompatible metals; and store it cool, closed, and away from acids and other incompatible materials. Keep it out of drains and waterways; the aquatic toxicity classification is not theoretical. Store away from heat and light to maintain stability.
Hazmat & Shipping
This product ships as regulated hazardous material. The proper shipping name is Ammonia solution, UN2672, Hazard Class 8, Packing Group III (per 49 CFR 172.101). That classification governs how we package, mark, and document every shipment from Taylor, TX. Carriers set their own accessorial fees and routing rules for Class 8 freight; the classification above is the regulatory fact — what any individual carrier decides to charge or how it routes a shipment is theirs to determine. If your receiving dock has hazmat acceptance procedures, share the UN number and proper shipping name with them before the freight arrives.
Documentation
A Safety Data Sheet accompanies every order, available in English, Spanish, French, and Japanese. A lot-specific Certificate of Analysis is available for this product, along with a Technical Data Sheet — the paperwork analytical buyers need to receive an ACS Grade reagent into a documented workflow. If your quality system requires the COA before the material arrives, ask and we will send it ahead of the shipment.
Why Buy from Alliance Chemical
We offer this solution in sixteen pack configurations from 1 quart to 330 gal totes — the same UN2672 Class 8 handling discipline applied at every size, whether it's a bench bottle or a full tote. Before you order from us or from competitors, check the paperwork: SDS in four languages, lot-specific COA, and TDS come standard here. Alliance Chemical has operated since 1998 and has served more than 50,000 customers from our Taylor, Texas warehouse. The shipping and handling guidance on this page is reviewed by Andre Taki, DOT Hazmat Specialist.
