CAS #:

Linear Formula:


MDL Number:


EC No.:



(2N) 99% Ammonium Chromate
Pricing > SDS > Data Sheet >
(3N) 99.9% Ammonium Chromate
Pricing > SDS > Data Sheet >
(4N) 99.99% Ammonium Chromate
Pricing > SDS > Data Sheet >
(5N) 99.999% Ammonium Chromate
Pricing > SDS > Data Sheet >

Ammonium Chromate Properties (Theoretical)

Compound Formula H8CrN2O4
Molecular Weight 152.07
Appearance Yellow-orange crystalline powder
Melting Point 180 °C
Boiling Point N/A
Density 1.91 g/cm3
Solubility in H2O N/A
Exact Mass 151.988914
Monoisotopic Mass 151.988914

Ammonium Chromate Health & Safety Information

Signal Word Danger
Hazard Statements H272-H314-H334-H350i-H400
Hazard Codes O,T,N
Risk Codes 49-8-34-43-50/53
Safety Statements 53-17-26-36/37/39-45-60-61
RTECS Number GB2880000
Transport Information UN 1479 5.1/PG 2
WGK Germany 3

About Ammonium Chromate

Chromate IonAmmonium Chromate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Ammonium Chromate Synonyms

Diammonium dioxido(dioxo)chromium; Diammonium chromate; Ammonium chromate(VI); Neutral ammonium chromate; Chromic acid, diammonium salt

Chemical Identifiers

Linear Formula (NH4)2CrO4
MDL Number MFCD00015958
EC No. 232-138-4
Beilstein/Reaxys No. N/A
Pubchem CID 24595
IUPAC Name diazanium; dioxido(dioxo) chromium
SMILES [O-][Cr]([O-])(=O)=O.[NH4+].[NH4+]
InchI Identifier InChI=1S/Cr.2H3N.4O/h;2*1H3;;;;/q;;;;;2*-1/p+2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. Chromium Bohr ModelThe number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electron configuration is [Ar] 3d5 4s1. Chromium was first discovered by Louis Nicolas Vauquelin in 1797. It was first isolated in 1798, also by Louis Nicolas Vauquelin. The chromium atom has a radius of 128 pm and a Van der Waals radius of 189 pm. In its elemental form, chromium has a lustrous steel-gray appearance. Elemental ChromiumChromium is the hardest metal element in the periodic table and the only element that exhibits antiferromagnetic ordering at room temperature, above which it tranforms into a paramagnetic solid. The most common source of chromium is chromite ore (FeCr2O4). Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color.


See more Nitrogen products. Nitrogen is a Block P, Group 15, Period 2 element. Its electron configuration is [He]2s22p3. Nitrogen is an odorless, tasteless, colorless and mostly inert gas. It is the seventh most abundant element in the universe and it constitutes 78.09% (by volume) of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.


January 19, 2021
Los Angeles, CA
Each business day American Elements' scientists & engineers post their choice for the most exciting materials science news of the day

Atomic-scale apertures represent a novel regime in physics and materials science