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21067

Supelco

Calcium carbonate

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

Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
Beilstein:
1098229
Beilstein:
8008338
EC Number:
EC Number:
MDL number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

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

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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.

Signal Word

Danger

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

Certificate of Analysis

Certificate of Origin

Sophie A Jamal et al.
Lancet (London, England), 382(9900), 1268-1277 (2013-07-23)
Phosphate binders (calcium-based and calcium-free) are recommended to lower serum phosphate and prevent hyperphosphataemia in patients with chronic kidney disease, but their effects on mortality and cardiovascular outcomes are unknown. We aimed to update our meta-analysis on the effect of...
Polysaccharides and proteoglycans in calcium carbonate-based biomineralization.
José L Arias et al.
Chemical reviews, 108(11), 4475-4482 (2008-07-26)
Filipe Natalio et al.
Science (New York, N.Y.), 339(6125), 1298-1302 (2013-03-16)
Silicatein-α is responsible for the biomineralization of silicates in sponges. We used silicatein-α to guide the self-assembly of calcite "spicules" similar to the spicules of the calcareous sponge Sycon sp. The self-assembled spicules, 10 to 300 micrometers (μm) in length...
Jane A Cauley et al.
Journal of women's health (2002), 22(11), 915-929 (2013-10-18)
Clinical outcomes of the Women's Health Initiative (WHI) calcium plus vitamin D supplementation trial have been reported during 7.0 years of active intervention. We now report outcomes 4.9 years after the intervention stopped and cumulative findings. Postmenopausal women (N=36,282) were...
M Azizur Rahman et al.
PloS one, 8(3), e58781-e58781 (2013-03-26)
An organic matrix consisting of a protein-polysaccharide complex is generally accepted as an important medium for the calcification process. While the role this "calcified organic matrix" plays in the calcification process has long been appreciated, the complex mixture of proteins...

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