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Merck
CN

1.02410

Calcium carbonate

volumetric standard, secondary reference material for complexometry, traceable to NIST Standard Reference Material (SRM) Certipur®

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About This Item

Linear Formula:
CaCO3
CAS Number:
471-34-1
Molecular Weight:
100.09
UNSPSC Code:
41116107
NACRES:
NA.24
EC Index Number:
207-439-9
MDL number:
MFCD00010906
Beilstein/REAXYS Number:
8008338

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Product Name

Calcium carbonate, volumetric standard, secondary reference material for complexometry, traceable to NIST Standard Reference Material (SRM) Certipur®

InChI

1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2

SMILES string

[Ca++].[O-]C([O-])=O

InChI key

VTYYLEPIZMXCLO-UHFFFAOYSA-L

agency

ISO 17025
ISO 17034

form

solid

potency

6450 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)

technique(s)

titration: suitable

pH

9.5-10.5 (20 °C, 100 g/L in H2O, slurry)

mp

825 °C (decomposition)

density

2.93 g/mL at 25 °C (lit.)

bulk density

300‑1400 kg/m3

storage temp.

15-25°C

Quality Level

300

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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.
  • Certified reference material according to ISO 17034
  • High-purity material traceable to NIST SRMs
  • Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
  • High-quality offering accurate titer determinations

General description

Calcium carbonate volumetric standard is manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.


In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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