Calcium carbonate

CAS 471-34-1CaCO3Acids & Bases

Calcium carbonate (CAS 471-34-1), with the molecular formula CaCO3 and a molar mass of 100.09 g/mol, is a widely occurring chemical compound. It presents as a white, odourless solid. This substance is frequently employed as a laboratory reagent, particularly in volumetric analysis as a primary standard for acid titrations. Its applications extend to various industrial processes requiring a reliable source of carbonate.

Synonyms: CalciteAragonite

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Calcium carbonate (CaCO3) — chemical structure, CAS 471-34-1; Chemistry, fine chemical supplied by Tech Serve Solutions

Acids & BasesBasesCalcium SaltsChemical SynthesisEssential ChemicalsInorganic BasesMaterials ScienceMetal and Ceramic ScienceResearch EssentialsSalts

01 /Applications

Acid-Base Titrations

As a primary standard, Calcium carbonate is invaluable for the accurate calibration of acidic solutions in quantitative chemical analysis. Its stability and high purity make it ideal for precise gravimetric and volumetric determinations.

Chemical Synthesis

Calcium carbonate serves as a precursor or reagent in the synthesis of other calcium compounds and various chemical products. It is a fundamental building block in inorganic chemistry laboratories.

Materials Science Research

Utilised in research settings for developing new materials, including ceramics and composites, where its mineral properties are exploited for specific applications.

Laboratory Reagent

A common and essential reagent stocked in laboratories for general chemical reactions, pH adjustment, and educational purposes, owing to its availability and well-understood properties.

02 /Properties

Molecular weight	100.09
Linear formula	CaCO3
Assay	99.95-100.05% dry basis
Grade	ACS reagentchelometric standard
Density	2.93 g/mL at 25 °C(lit.)
Solubility	5 M HCl: soluble0.1 M at 20 °C, clear, colorless
Loss on drying	≤0.5% loss on drying, 110 °C
Impurities tested	≤0.01% NH4OH pptd.≤0.01% insol. dil. HCl

03 /Safety & handling

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	nwg
Cation traces	Ba: ≤0.01%Fe: ≤0.002%K: ≤0.01%Mg: ≤0.01%NH4+: ≤0.003%Na: ≤0.01%Sr: ≤0.1%heavy metals (as Pb): ≤0.001%
Anion traces	chloride (Cl-): ≤0.001%fluoride (F-): ≤0.0015%sulfate (SO42-): ≤0.005%

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

471-34-1

MDL number

MFCD00010906

PubChem substance

24864718

Beilstein registry

8008338

05 /Additional specifications

Uv Absorption	λ: 260 nm Amax: ≤0.09λ: 280 nm Amax: ≤0.06

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Calcium Carbonate (CAS 471-34-1) used for?

Calcium carbonate (CAS 471-34-1) is primarily used as a primary standard in acid-base titrations, in chemical synthesis, materials science research, and as a general laboratory reagent.

What is the CAS number and chemical formula for Calcium Carbonate?

The CAS number for Calcium Carbonate is 471-34-1 and its linear chemical formula is CaCO3.

What grade and purity does Tech Serve Solutions supply for Calcium Carbonate?

Tech Serve Solutions supplies Calcium Carbonate in ACS reagent grade, suitable as a chelometric standard, with an assay of 99.95-100.05% on a dry basis.

How should Calcium Carbonate be handled safely?

When handling Calcium Carbonate, it is recommended to wear a dust mask type N95 (US), eyeshields, and gloves to avoid inhalation and skin/eye contact. Ensure adequate ventilation.

Is Calcium Carbonate a controlled substance?

No, Calcium Carbonate is not listed as a controlled or scheduled substance.

How is Calcium Carbonate packed and shipped?

Calcium Carbonate is available for export and is carefully packed to maintain its integrity during transit. Please contact us for specific packaging and shipping details for your region.