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Merck
CN

1.19533

Cyanide standard solution

traceable to SRM from NIST K2[Zn(CN)4] in H2O 1000 mg/l CN Certipur®

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About This Item

NACRES:
NA.24
UNSPSC Code:
41116107
Technical Service
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Quality Level

technique(s)

ion chromatography: suitable

pH

9-10 (20 °C in H2O)

density

1.00 g/cm3 at 20 °C

application(s)

environmental
food and beverages

format

single component solution

storage temp.

2-8°C

Analysis Note

Concentration     β (CN⁻): 990 - 1010 mg/l
Determination method: Argentometric titration.
The content of this solution was determined with silver nitrate standard solution (article number 1.09081) standardized against volumetric standard sodium chloride (article number 1.02406). The expanded measurement uncertainty is ± 0.7 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 999b (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard sodium chloride, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

Other Notes

We now offer a certified reference material alternative for this product that has the same composition and is manufactured under ISO 17034 accreditation.

Legal Information

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


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hcodes

Hazard Classifications

Aquatic Chronic 3

supp_hazards

Storage Class

12 - Non Combustible Liquids

wgk

WGK 2



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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Global Trade Item Number

SKUGTIN
119533050004022536178684