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1.02410

Supelco

Calcium carbonate

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

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250 MG
CA$200.00

About This Item

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

CA$200.00

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Agency

ISO 17025
ISO 17034

Quality Level

300

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

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325546449954298158
Dysprosium(III) fluoride anhydrous, powder, ≥99.98% trace rare earth metals basis

450847

Dysprosium(III) fluoride

Dysprosium(III) chloride anhydrous, powder, 99.99% trace metals basis

325546

Dysprosium(III) chloride

Neodymium(III) fluoride anhydrous, powder, 99.99% trace metals basis

449954

Neodymium(III) fluoride

Dysprosium(III) nitrate hydrate 99.9% trace metals basis

298158

Dysprosium(III) nitrate hydrate

form

powder

form

powder

form

powder

form

crystals and lumps

assay

≥99.98% trace rare earth metals basis

assay

99.99% trace metals basis

assay

99.99% trace metals basis

assay

99.9% trace metals basis

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

grade

anhydrous

grade

anhydrous

grade

anhydrous

grade

-

impurities

<100 ppm water

impurities

≤150.0 ppm Trace Rare Earth Analysis

impurities

≤150.0 ppm Trace Rare Earth Analysis

impurities

≤1500.0 ppm Trace Rare Earth Analysis

reaction suitability

reagent type: catalyst
core: dysprosium

reaction suitability

reagent type: catalyst
core: dysprosium

reaction suitability

reagent type: catalyst
core: neodymium

reaction suitability

reagent type: catalyst
core: dysprosium

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.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

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
  • Accompanied by a certificate of analysis (CoA)

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 Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

    • Certificates of Analysis (COA)

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