There is no specific limit on the number of times the same packet or pouch (30 ml) can be used for calibration, provided that the product is stored under proper conditions. To ensure the integrity and accuracy of the solution, follow the recommended storage guidelines outlined in Section 7.2 of the Safety Data Sheet (SDS).
1.01553
Potassium chloride solution
nominal 1.41 mS/cm, Certified Reference Material for the measurement of electrolytic conductivity, traceable to PTB (c=0.01 mol/l) Certipur®
Synonym(s):
Potassium chloride solution
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30 X 30 ML
$127.20
$127.20
List Price$159.00Save 20%Web-Only Promotion
Estimated to ship onNovember 26, 2025
About This Item
Linear Formula:
KCl
CAS Number:
Molecular Weight:
74.55
Beilstein/REAXYS Number:
1711999
MDL number:
UNSPSC Code:
41116107
NACRES:
NA.24
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Product Name
Potassium chloride solution Certified Reference Material, nominal 1.41 mS/cm, Certified Reference Material for the measurement of electrolytic conductivity, traceable to PTB (c=0.01 mol/l) Certipur®
grade
certified reference material
Quality Level
product line
Certipur®
pH
7 (20 °C in H2O)
bp
100 °C/1013 hPa
application(s)
environmental
format
single component solution
storage temp.
2-8°C
SMILES string
[Cl-].[K+]
InChI
1S/ClH.K/h1H;/q;+1/p-1
InChI key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
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1 of 4
This Item | 1.01811 | 1.01557 | 1.01255 |
|---|---|---|---|
| format single component solution | format single component solution | format single component solution | format - |
| bp 100 °C/1013 hPa | bp - | bp - | bp - |
| product line Certipur® | product line Certipur® | product line Certipur® | product line - |
| grade certified reference material | grade certified reference material | grade certified reference material | grade - |
| application(s) environmental | application(s) environmental | application(s) environmental | application(s) - |
| pH 7 (20 °C in H2O) | pH - | pH - | pH - |
General description
This certified reference material (CRM) is directly traceable to the corresponding primary reference material from the Physikalisch Technische Bundesanstalt (PTB), Germany. The electrolytic conductivity of this standard is determined using a conductivity meter from an accredited Merck calibration laboratory.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search 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.
Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.
Application
Potassium chloride solution is a certified reference material intended for use in aqueous solution as a calibration standard for the measurement of the conductivity cell constant or as a control sample.
Analysis Note
Electrical conductivity (25 °C): 1.39 - 1.43 mS/cm
Other Notes
For a complete product listing of our ICP and AAS range, including technical information and example certificates, please visit ICP & AAS standards website
For detailed information for our newly launched Conductivity Standards check the flyer: Commitment to Quality: Elevating Certipur® Standards to Certified Reference Material
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website.
For detailed information for our newly launched Conductivity Standards check the flyer: Commitment to Quality: Elevating Certipur® Standards to Certified Reference Material
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website.
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
related product
Product No.
Description
Pricing
Storage Class
12 - Non Combustible Liquids
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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How many times can the same packet/pouch (30ml) be used for calibration? 1.01553 Supelco Potassium chloride solution Certified Reference Material
1 answer-
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Do we have to dilute the 30 ml liquid to get the desired concentration or use it directly to calibrate the Electrical conductivity meter?
1 answer-
No dilution is required. The 30 mL size is packaged as a sachet or pouch ready for use.
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