1.02404
Potassium iodate
volumetric standard, secondary reference material for iodometry, traceable to NIST SRM Certipur®
Synonym(s):
Potassium iodate
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About This Item
Empirical Formula (Hill Notation):
IKO3
CAS Number:
Molecular Weight:
214.00
UNSPSC Code:
41116107
EC Index Number:
231-831-9
NACRES:
NA.24
MDL number:
Quality Level
agency
ISO 17025, reag. Ph. Eur., reag. USP
form
solid
technique(s)
titration: suitable
pH
6 (20 °C, 50 g/L in H2O)
mp
560 °C (decomposes)
solubility
92 g/L
density
3.98 g/cm3 at 20 °C
bulk density
2000 kg/m3
storage temp.
15-25°C
SMILES string
[K+].[I](=O)(=O)[O-]
InChI
1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
InChI key
JLKDVMWYMMLWTI-UHFFFAOYSA-M
General description
Potassium iodate is a volumetric standard 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.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
It is used as secondary reference material for the standardization of volumetric solutions in iodometric titrations, following USP and Ph. Eur.
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
- In accordance with the chapter reagents of USP and Ph. Eur
- High-quality offering accurate titer determinations
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
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 2
Storage Class
5.1B - Oxidizing hazardous materials
wgk
WGK 1
flash_point_f
does not flash
flash_point_c
does not flash
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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