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德国MN铬测试剂/补充试剂931020/931220

商品名称:  德国MN铬测试剂/补充试剂931020/931220

商品编号:  931020/931220

商品规格:  931020/931220

净重含量:  931020/931220

VISOCOLOR® ECO Chromium

德国MN铬测试剂/补充试剂931020/931220

Colorimetric determination of chromium (VI)

In sulphuric acid chromate ions react with diphenylcarbazide to form a red-violet dye. (Reaction basis according to DIN EN ISO 7393 G4-2)

Data and ordering information
REF 931 020 (931 220)
Type colorimetric test kit (refill pack)
Range 0.02 · 0.05 · 0.10 · 0.15 · 0.20 · 0.30 · 0.40 · 0.50 mg/l Cr(VI)
Sufficient for 140 determinations
Shelf life at least 1.5 years
Sea water suitability yes
Detectable with PF-12 yes
 

Chromium compounds can be present in industrial waste waters in trivalent form [chromium(III) ions] and in hexavalent form (chromate and dichromate ions). In order to determine the total chromium all other valencies must be oxidised to chromium(VI). Each test kit is equipped with a detailed description.