CAS #:

Linear Formula:

C2CaO4• H2O

MDL Number:


EC No.:



(2N) 99% Calcium Oxalate Monohydrate
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(3N) 99.9% Calcium Oxalate Monohydrate
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(4N) 99.99% Calcium Oxalate Monohydrate
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(5N) 99.999% Calcium Oxalate Monohydrate
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Calcium Oxalate Monohydrate Properties (Theoretical)

Compound Formula C2H2CaO5
Molecular Weight 128.1
Appearance White to Off-white Powder
Melting Point 200°C
Boiling Point N/A
Density 2.2 g/cm3
Solubility in H2O N/A
Exact Mass 145.952814
Monoisotopic Mass 145.952814

Calcium Oxalate Monohydrate Health & Safety Information

Signal Word Warning
Hazard Statements H302-H312
Hazard Codes Xn
Risk Codes R21/22
Safety Statements S24/25
RTECS Number N/A
Transport Information UN3288 6.1/III
WGK Germany 3

About Calcium Oxalate Monohydrate

Calcium Oxalate Monohydrate is generally immediately available in most volumes, including bulk quantities. 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, as is additional technical and safety (MSDS) data. Please contact us for information on lead time and pricing above.

Calcium Oxalate Monohydrate Synonyms

Calcium(II) Oxalate-1-Hydrate, Calcium ethanedioate monohydrate, ethanedioic acid, calcium salt, hydrate (1:1:1); oxalic acid calcium salt monohydrate

Chemical Identifiers

Linear Formula C2CaO4• H2O
MDL Number MFCD00150039
EC No. 209-260-1
Beilstein/Reaxys No. N/A
Pubchem CID 165350
IUPAC Name calcium; oxalate; hydrate
SMILES C(=O)(C(=O)[O-])[O-].O.[Ca+2]
InchI Identifier InChI=1S/C2H2O4 .Ca.H2O/c3-1(4)2( 5)6;;/h(H,3,4)(H,5, 6);;1H2/q;+2;/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 Calcium products. Calcium (atomic symbol: Ca, atomic number: 20) is a Block S, Group 2, Period 4 element with an atomic weight of 40.078. The number of electrons in each of Calcium's shells is [2, 8, 8, 2] and its electron configuration is [Ar]4s2. Calcium Bohr ModelThe calcium atom has a radius of 197 pm and a Van der Waals radius of 231 pm. Calcium was discovered and first isolated by Sir Humphrey Davy in 1808. It is the fifth most abundant element in the earth's crust and can be found in minerals such as dolomite, gypsum, plagioclases, amphiboles, pyroxenes and garnets. In its elemental form, calcium has a dull gray-silver appearance. Calcium is a reactive, soft metal that is a member of the alkaline earth elements. Elemental CalciumIt frequently serves as an alloying agent for other metals like aluminum and beryllium, and industrial materials like cement and mortar are composed of calcium compounds like calcium carbonate. It is also an biologically essential substance found in teeth, bones, and shells. The name "calcium" originates from the Latin word "calics," meaning lime.


September 25, 2023
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