21067

Calcium carbonate

certified reference material for titrimetry, certified by BAM, ≥99.5%

• Linear Formula: CaCO₃
• CAS Number: 471-34-1
• Molecular Weight: 100.09
• Beilstein: 1098229
• Beilstein: 8008338
• EC Number: 200-659-6
• EC Number: 207-439-9
• MDL number: MFCD00004595
• MDL number: MFCD00010906
• PubChem Substance ID: 329751907
• NACRES: NA.24

Properties

• Quality Level: 200
• grade: certified reference material; ACS reagent
• vapor density: 1.11 (vs air)
• vapor pressure: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• assay: ≥99.5%; ≥99.8%
• quality: certified by BAM
• form: liquid
• autoignition temp.: 725 °F
• expl. lim.: 36 %
• application(s): titration: suitable
• solubility: H₂O: insoluble
• density: 2.93 g/mL at 25 °C (lit.); 0.791 g/mL at 25 °C (lit.)
• impurities: H₂SO₄, passes test (darkened); MnO₄^- reducers, passes test; ≤0.0002 meq/g Titr. base; ≤0.0003 meq/g Titr. acid; ≤0.001% acetaldehyde; ≤0.001% acetone; ≤0.001% formaldehyde; ≤0.1% water
• format: neat
• evapn. residue: ≤0.001%
• color: APHA: ≤10; clear
• refractive index: n20/D 1.329 (lit.)
• bp: 64.7 °C (lit.)
• mp: −98 °C (lit.)
• SMILES string: [Ca++].[O-]C([O-])=O; CO
• InChI: 1S/CH4O/c1-2/h2H,1H3; 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N; VTYYLEPIZMXCLO-UHFFFAOYSA-L

Description

General description

Calcium carbonate volumetric standard is manufactured under stringent conditions and measured with the highest possible precision. The standard is qualified by volumetric complexometric titration with photometric endpoint detection. Its certified value and uncertainty measurement are in accordance with ISO Guide 35.

Application

It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in complexometric titrations.

Features and Benefits

• Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
• High-quality offering accurate titer determinations
• Accompanied by a certificate of analysis (CoA)

Analysis Note

Exact concentration, expiry date, traceability and detailed information on certification can be found on the certificate and certification report, included in each package. Content and expiry date on label.

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Legal Information

Riedel-de Haën is a registered trademark of Honeywell Specialty Chemicals Seelze GmbH.

Safety Information

• Pictograms: GHS02,GHS06,GHS08
• Signal Word: Danger
• Hazard Statements: H225 - H301 + H311 + H331 - H370
• Precautionary Statements: P210 - P280 - P301 + P310 + P330 - P302 + P352 + P312 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Target Organs: Eyes
• Storage Class Code: 3 - Flammable liquids
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 2
• WGK: nwg
• Flash Point(F): 49.5 °F - closed cup
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Flash Point(C): 9.7 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US),Eyeshields,Gloves
• Personal Protective Equipment: dust mask type N95 (US),Eyeshields,Gloves