Ammonium Hydroxide 20% ACS Grade

Name: Ammonium Hydroxide 20% ACS Grade
Brand: Alliance Chemical
SKU: ZH0-53B-CL1
Availability: InStock

Commercial Fulfillment Snapshot

Buy Ammonium Hydroxide 20% ACS Grade with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Email Bulk Quote Call (512) 365-6838

Technical Documents

SDS TDS COA

Lot-specific COA is issued per shipment batch.

Who Buys This

Chemical Processing
Industrial & Manufacturing
Lab & Research

Purity / Grade Guide

ACS Reagent Grade for commercial purchasing
20% concentration / assay target
Lot-specific COA available with shipment; TDS published

Pack Sizes

1 Quart
1 Gallon
5 Gallon
15 Gallon
55 Gallon
275 Gallon
330 Gallon

SDS / COA / TDS

SDS available for immediate download
TDS available for specification review
COA available by shipment batch

Small Packs: UPS Ground nationwide for pints, quarts, and gallons.

LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.

Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Description
Product Documents
Chemical Profile

Product Overview

Ammonium Hydroxide 20% ACS Grade is a pre-diluted aqueous solution of ammonium hydroxide (NH4OH) prepared with high-purity deionized water. This 20% concentration provides a convenient, ready-to-use form that eliminates the need for on-site dilution of concentrated stock. Appearance: Clear, colorless liquid with strong ammonia odor. Meeting ACS Reagent Grade specifications, this product is suitable for analytical and laboratory applications requiring controlled purity and documented impurity limits.

Supplied by Alliance Chemical in sizes ranging from 1 quart to 330-gallon IBC totes, this solution is ideal for operations requiring consistent 20% strength with minimal handling risk compared to higher concentrations.

Key Properties

Chemical Name: Ammonium Hydroxide
Synonyms: Ammonia Solution, Aqueous Ammonia, NH4OH
Chemical Formula: NH4OH
CAS Number: 1336-21-6
Molecular Weight: 35.05 g/mol
Concentration: 20% (w/w)
Grade: ACS
Specific Gravity (20°C): 0.920
Boiling Point: 38°C
Flash Point: N/A
Appearance: Clear, colorless liquid with strong ammonia odor
Solubility: Fully soluble in water

Common Applications

Cleaning & Degreasing: Effective alkaline cleaner for removing grease, oils, and organic residues from surfaces and equipment.
Water & Wastewater Treatment: Used for pH adjustment and as a chloramine disinfection agent in municipal water treatment.
Metal Surface Treatment: Serves as an etchant and patina agent for copper, brass, and aluminum surface finishing.
Laboratory Reagent: Standard reagent for qualitative analysis, buffer preparation, and complexometric titrations.
Agricultural Applications: Nitrogen source for fertilizer formulations and soil pH adjustment.

Safety Precautions

Ammonium Hydroxide releases ammonia vapor which is irritating to eyes, skin, and respiratory tract. Handle in well-ventilated areas or under a fume hood. Store in tightly sealed HDPE containers in a cool, dry location away from acids.

PPE Requirements: Wear chemical-resistant gloves, splash goggles, and a face shield. Use respiratory protection if ventilation is inadequate. In case of inhalation, move to fresh air immediately. In case of eye or skin contact, rinse with water for at least 15 minutes. Refer to the SDS for detailed handling and emergency procedures.

Shipping: UN 2672, Ammonia solution, Class 8, PG III.

Benefits

Ready-to-Use Solution: Pre-diluted concentration reduces vapor exposure and simplifies safe handling.
Consistent Ammonia Content: Manufactured with high-purity materials for reliable concentration control.
Flexible Packaging: Available from quart bottles to bulk totes for any application scale.

Related Products

Property	Value
Molecular Weight	35.05 g/mol
Formula	NH4OH
Assay	20%
Grade	ACS Reagent Grade
Form	Liquid
Solubility	Fully soluble in water
Appearance	Clear, colorless liquid with strong ammonia odor
Melting Point	-57.5°C
Boiling Point	38°C
Specific Gravity	0.92
Industry	Chemical Processing, Industrial & Manufacturing, Lab & Research

Frequently Asked Questions About Ammonium Hydroxide 20% ACS Grade

What is Ammonium Hydroxide 20% ACS Grade and what is its chemical formula?

Ammonium Hydroxide 20% ACS Grade is a chemical compound with the molecular formula NH4OH, registered under CAS Number 1336-21-6 by the Chemical Abstracts Service (PubChem), with a molecular weight of 35.05 g/mol g/mol. Alliance Chemical supplies Ammonium Hydroxide 20% ACS Grade in ACS Reagent grade for laboratory, industrial, and commercial applications.

What are the physical properties of Ammonium Hydroxide 20% ACS Grade?

According to the NIOSH Pocket Guide to Chemical Hazards, Ammonium Hydroxide 20% ACS Grade is supplied as a clear, colorless liquid with strong ammonia odor. It has a melting point of -57.5°C°C, a boiling point of 38°C°C, a flash point of N/A. The specific gravity is 0.92 relative to water. Solubility: Fully soluble in water.

What grade and purity of Ammonium Hydroxide 20% ACS Grade does Alliance Chemical offer?

Alliance Chemical offers Ammonium Hydroxide 20% ACS Grade in ACS Reagent grade with a purity assay of 20%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.

What are common industrial applications of Ammonium Hydroxide 20% ACS Grade?

Ammonium Hydroxide 20% ACS Grade serves a wide range of sectors, including Chemical Processing, Industrial & Manufacturing, and Lab & Research.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.

What PPE is required when handling Ammonium Hydroxide 20% ACS Grade?

OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.

What are the storage requirements for Ammonium Hydroxide 20% ACS Grade?

Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:acids, aluminum, zinc. Maximum storage:2-3 years unopened.

What is the emergency spill procedure for Ammonium Hydroxide 20% ACS Grade?

Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Neutralize with citric acid or acetic acid (5% solution). (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.

What is the DOT shipping classification for Ammonium Hydroxide 20% ACS Grade?

DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.

How must Ammonium Hydroxide 20% ACS Grade waste be disposed?

Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.

Does Alliance Chemical provide an SDS and COA for Ammonium Hydroxide 20% ACS Grade?

Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Ammonium Hydroxide 20% ACS Grade. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.