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1.70230

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Potassium standard solution

Potassium standard solution

traceable to SRM from NIST KNO₃ in HNO₃ 0.5 mol/l 1000 mg/l K Certipur®

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100 ML
$68.50
500 ML
$95.90

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100 ML
$68.50
500 ML
$95.90

About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

$68.50


Check Cart for Availability

Request a Bulk Order

grade

certified reference material

Quality Level

agency

suitable for EPA 200.7

product line

Certipur®

concentration

1000 mg/L K in 0.5 M HNO3 (1000 mg/L K in 0.5 mol/L HNO3)

technique(s)

AAS: suitable
ICP: suitable

pH

0.5 (20 °C in H2O)

density

1.013 g/cm3 at 20 °C

application(s)

industrial qc
pharmaceutical

format

single component solution

storage temp.

15-25°C

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This Item
1.0992424-55501.70342
grade

certified reference material

grade

analytical standard

grade

-

grade

certified reference material

technique(s)

AAS: suitable, ICP: suitable

technique(s)

AAS: suitable, ICP: suitable

technique(s)

-

technique(s)

ICP: suitable

format

single component solution

format

single component solution

format

-

format

single component solution

concentration

1000 mg/L K in 0.5 M HNO3 (1000 mg/L K in 0.5 mol/L HNO3)

concentration

1000 mg K in H2O

concentration

1 mg/mL K+, 1000 ppm K+

concentration

1000 mg/L K in 2-3% HNO3

product line

Certipur®

product line

Titrisol®

product line

-

product line

Certipur®

application(s)

industrial qc
pharmaceutical

application(s)

industrial qc
pharmaceutical

application(s)

-

application(s)

industrial qc
pharmaceutical

General description

This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

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

Potassium standard solution may be used as a calibration standard for atomic absorption spectroscopy.

Analysis Note

1000 mg/L K in 0.5 mol/L HNO3, prepared with high-purityKNO3, HNO3, and water

Other Notes

For a complete product listing of our Certipur® range of CRMs for ICP and AAS, technical information, and example certificates please visit our ICP & AAS standards website

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Corrosion

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2

Storage Class

8A - Combustible, corrosive hazardous materials

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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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Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

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