CAS #:

Linear Formula:

CoMoO4 • xH2O

MDL Number:


EC No.:



(2N) 99% Cobalt(II) Molybdenum Oxide Hydrate
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(3N) 99.9% Cobalt(II) Molybdenum Oxide Hydrate
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(4N) 99.99% Cobalt(II) Molybdenum Oxide Hydrate
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(5N) 99.999% Cobalt(II) Molybdenum Oxide Hydrate
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Cobalt(II) Molybdenum Oxide Hydrate Properties (Theoretical)

Compound Formula CoH2MoO5
Molecular Weight 236.9
Appearance Green powder
Melting Point N/A
Boiling Point N/A
Density N/A
Solubility in H2O N/A
Storage Temperature Ambient temperatures
Exact Mass 238.82882 g/mol
Monoisotopic Mass 238.82882 g/mol

Cobalt(II) Molybdenum Oxide Hydrate Health & Safety Information

Signal Word Danger
Hazard Statements H317-H319-H334-H341-H350-H360
Hazard Codes N/A
Precautionary Statements P201-P202-P261-P264-P272-P280-P281-P285-P302+P352-P304+P341-P305+P351+P338-P308+P313-P333+P313-P337+P313-P342+P311-P363-P501
RTECS Number N/A
Harmonized Tariff Code 2841.70
Transport Information UN 3077 9/PG III
GHS Pictograms

About Cobalt(II) Molybdenum Oxide Hydrate

Molybdate IonCobalt(II) Molybdenum Oxide Hydrate (Cobalt Molybdate Hydrate) is generally immediately available in most volumes. Hydrate or anhydrous forms may be purchased. 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.

Cobalt(II) Molybdenum Oxide Hydrate Synonyms

Cobalt molybdate hydrate, Cobalt molybdate monohydrate, Cobaltic molybdate hydrate, Cobalt monomolybdate hydrate, Molybdenum cobaltate hydrate, Cobalt(2+) molybdate hydrate, Cobalt molybdate(VI) hydrate, Molybdic acid cobalt salt hydrate, CAS 18601-87-1 (cobaltic molybdate hydrate)

Chemical Identifiers

Linear Formula CoMoO4 • xH2O
MDL Number MFCD00150209
EC No. 237-358-4
Beilstein/Reaxys No. N/A
Pubchem CID 44135796
IUPAC Name cobalt(2+); dioxido(dioxo)molybdenum; hydrate
SMILES O.[O-][Mo](=O)(=O)[O-].[Co+2]
InchI Identifier InChI=1S/Co.Mo.H2O.4O/h;;1H2;;;;/q+2;;;;;2*-1

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 Cobalt products. Cobalt (atomic symbol: Co, atomic number: 27) is a Block D, Group 9, Period 4 element with an atomic weight of 58.933195. Cobalt Bohr ModelThe number of electrons in each of cobalt's shells is 2, 8, 15, 2 and its electron configuration is [Ar]3d7 4s2. The cobalt atom has a radius of 125 pm and a Van der Waals radius of 192 pm. Cobalt was first discovered by George Brandt in 1732. In its elemental form, cobalt has a lustrous gray appearance. Cobalt is found in cobaltite, erythrite, glaucodot and skutterudite ores. Elemental CobaltCobalt produces brilliant blue pigments which have been used since ancient times to color paint and glass. Cobalt is a ferromagnetic metal and is used primarily in the production of magnetic and high-strength superalloys. Co-60, a commercially important radioisotope, is useful as a radioactive tracer and gamma ray source. The origin of the word Cobalt comes from the German word "Kobalt" or "Kobold," which translates as "goblin," "elf" or "evil spirit.


See more Molybdenum products. Molybdenum (atomic symbol: Mo, atomic number: 42) is a Block D, Group 6, Period 5 element with an atomic weight of 95.96. Molybdenum Bohr ModelThe number of electrons in each of molybdenum's shells is [2, 8, 18, 13, 1] and its electron configuration is [Kr] 4d5 5s1. The molybdenum atom has a radius of 139 pm and a Van der Waals radius of 209 pm. In its elemental form, molybdenum has a gray metallic appearance. Molybdenum was discovered by Carl Wilhelm in 1778 and first isolated by Peter Jacob Hjelm in 1781. Molybdenum is the 54th most abundant element in the earth's crust. Elemental MolybdenumIt has the third highest melting point of any element, exceeded only by tungsten and tantalum. Molybdenum does not occur naturally as a free metal, it is found in various oxidation states in minerals. The primary commercial source of molybdenum is molybdenite, although it is also recovered as a byproduct of copper and tungsten mining. The origin of the name Molybdenum comes from the Greek word molubdos meaning lead.


May 28, 2022
Los Angeles, CA
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