398101

Calcium carbonate

ACS reagent, chelometric standard, 99.95-100.05% dry basis

• Linear Formula: CaCO₃
• CAS Number: 471-34-1
• Molecular Weight: 100.09
• Beilstein: 8008338
• EC Number: 207-439-9
• MDL number: MFCD00010906
• UNSPSC 코드: 12352300
• PubChem Substance ID: 24864718

속성

• Grade: ACS reagent; chelometric standard
• Quality Level: 200
• 분석: 99.95-100.05% dry basis
• 형태: powder
• 불순물: ≤0.01% NH₄OH pptd.; ≤0.01% insol. dil. HCl
• pH: 8
• solubility: dilute HCl: 6.7%
• density: 2.93 g/mL at 25 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤0.001%; fluoride (F^-): ≤0.0015%; sulfate (SO₄^2-): ≤0.005%
• 양이온 미량물: Ba: ≤0.01%; Fe: ≤0.002%; K: ≤0.01%; Mg: ≤0.01%; NH₄⁺: ≤0.003%; Na: ≤0.01%; Sr: ≤0.1%; heavy metals: ≤0.001% (by ICP)
• SMILES string: [Ca++].[O-]C([O-])=O
• InChI: 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
• InChI key: VTYYLEPIZMXCLO-UHFFFAOYSA-L

설명

일반 설명

Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals. It is an inexpensive, non-toxic and easily available reagent with a wide range of applications.

애플리케이션

Calcium carbonate may be used:

• As a pore generating agent to prepare porous ceramics.
• As chelometric standard for the standardization of EDTA solution.
• To extract aluminium by microwave induced thermal activation of coal fly ash (CFA).

안전성 정보

• Storage Class Code: 13 - Non Combustible Solids
• WGK: nwg
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves