The particle size for this product is not determined. The trace analysis of this product is reported in the lot specific Certificate of Analysis. A sample or lot specific Certificate may be accessed at the link below:
https://www.sigmaaldrich.com/product/sial/795445#product-documentation.
795445
Calcium carbonate
anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
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| Size/SKU | Availability | Price |
|---|---|---|
100 g | Available to ship TODAY | $78.40 $58.80 |
500 g | Available to ship TODAY | $170.00 |
1 kg | Available to ship TODAY | $294.00 $220.50 |
2.5 kg | Available to ship TODAY | $574.00 $430.50 |
About This Item
Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
UNSPSC Code:
12352300
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
Assay:
≥99%
Grade:
ACS reagent, anhydrous
Form:
powder
Solubility:
H2O: insoluble
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Quality Segment
grade
ACS reagent, anhydrous
product line
Redi-Dri™
assay
≥99%
form
powder
quality
free-flowing
impurities
≤0.002 meq/g water-soluble titr. base, ≤0.005% oxidizers, ≤0.01% NH4OH pptd., ≤0.01% insol. dil. HCl
pH
8
solubility
H2O: insoluble
density
2.93 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, fluoride (F-): ≤0.0015%, sulfate (SO42-): ≤0.01%
cation traces
Ba: ≤0.005%, Fe: ≤0.003%, K: ≤0.01%, Mg: ≤0.02%, NH4+: ≤0.003%, Na: ≤0.1%, Sr: ≤0.1%, heavy metals: ≤0.001% (by ICP-OES)
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
General description
Calcium carbonate is an inorganic compound that is commonly used as a solid base catalyst in some organic transformations. It is also used as an acid scavenger and stabilizing agent for acid-sensitive compounds. Additionally, CaCO3 is the most widely used additive in plastic and elastomeric applications due to its wide availability.
Application
- Spectrophotometric Analysis: Chromotropic acid disodium salt dihydrate is used in spectrophotometric methods for detecting and quantifying metal ions. Studies have shown its effectiveness in forming stable complexes with metal ions such as thorium, which can then be analyzed spectrophotometrically. This application is essential for environmental and industrial monitoring of metal contaminants (Issa et al., International Journal of Pharmaceutical Sciences Review and Research, 2022).
Features and Benefits
- Increased efficiency – Eliminates time and effort of loosening hardened powders
- Safety – Eliminates tools of force used to break up clumps
- Ecology – Reduces waste as it does not stick to the packaging
- Economy – Faster preparation and solvation increase productivity and reduce costs
- Assured Quality – Excellent, expert-tested quality with no anti-caking agents
- Flexible volumes – Available from research amounts to scale-up quantities
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
1 of 1
This Item | |||
|---|---|---|---|
| description anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99% | description NIST® SRM® 915c | description ≥99.995% trace metals basis | description ReagentPlus® |
| form powder | form - | form powder and chunks | form powder |
| solubility H2O: insoluble | solubility - | solubility H2O: insoluble | solubility - |
| assay ≥99% | assay - | assay ≥99.995% trace metals basis | assay ≥99% (EDTA titration) |
| Quality Level 200 | Quality Level - | Quality Level 100 | Quality Level 200 |
| grade ACS reagent, anhydrous | grade - | grade - | grade - |
| pH 8 | pH - | pH - | pH 8 |
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Storage Class
13 - Non Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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