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Merck

21061

Calcium carbonate

BioUltra, precipitated, ≥99.0% (KT)

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About This Item

Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
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product line

BioUltra

Quality Level

assay

≥99.0% (KT)

form

powder

quality

precipitated

impurities

insoluble matter, passes filter test

loss

≤0.5% loss on drying, 110 °C

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

density

2.93 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

As: ≤0.1 mg/kg, Ba: ≤50 mg/kg, Bi: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤50 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤1000 mg/kg, Mn: ≤100 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤500 mg/kg, Zn: ≤10 mg/kg

λ

0.1 M in 5 M HCl

UV absorption

λ: 260 nm Amax: ≤0.09, λ: 280 nm Amax: ≤0.06

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

Other Notes

Component of tetrathionate-containing and tetrathionate-producing culture media (TBG Broth) for buffering sulfuric acid produced on reduction of tetrathionate. Media component for luminous bacteria


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Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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K.H. Nealson
Methods in Enzymology, 57, 154-154 (1978)
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
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