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1.10958

Supelco

Kjeldahl tablets

for Wieninger method 5g/tablet

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About This Item

UNSPSC Code:
12352402
NACRES:
NB.21

Quality Level

form

tablet

specific analyte(s)

nitrogen

technique(s)

photometry: suitable

pH

5 (20 °C, 200 g/L in H2O)

solubility

200 g/L

storage temp.

no temp limit

General description

Type: Wieninger catalyst Composition:
Na2SO4 96.5%
CuSO4 1.5%
Se 2.0%

Analysis Note

Appearance: grey tablets
Application test: conforms
Grey colour of the product is caused by raw material and does not affect the application.

hcodes

Hazard Classifications

Aquatic Chronic 3

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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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Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

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