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21061

Sigma-Aldrich

Calcium carbonate

BioUltra, precipitated, ≥99.0% (KT)

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Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
Beilstein:
8008338
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

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

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210562109771501
Calcium carbonate BioUltra, precipitated, ≥99.0% (KT)

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Sodium pyrophosphate dibasic

Premium Grade
assay

≥99.0% (KT)

assay

≥99.0% (calc. on dried material, KT)

assay

≥99.5% (KT)

assay

≥99.0% (T)

form

powder

form

powder

form

solid

form

powder

impurities

insoluble matter, passes filter test

impurities

insoluble matter, passes filter test, ≤7% water (Karl Fischer)

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.002% total nitrogen (N)

impurities

insoluble matter, passes filter test

solubility

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

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 0.1 M at 20 °C, clear, colorless

density

2.93 g/mL at 25 °C (lit.)

density

-

density

-

density

-

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

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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K.H. Nealson
Methods in Enzymology, 57, 154-154 (1978)
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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
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
Christopher T Parsons et al.
Environmental pollution (Barking, Essex : 1987), 178, 254-263 (2013-04-17)
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Pedram Fatehi et al.
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In this work, we aimed at adsorbing the oligo-sugars of prehydrolysis liquor on precipitated calcium carbonate (PCC) to produce modified PCC. The results showed that the adsorptions of oligo-sugars, lignin and furfural were greater on porous PCC (PCC2) than on

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