Buy Kalkonkarbonovy acid
Kalkonkarbonovy acid

Kalkonkarbonovy acid

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1 UAH
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Ukraine, Dnipro
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83% of positive reviews from 6
8
8 years on Allbiz
Description

3-ГИДРОКСИ-4-(2-ГИДРОКСИ-4-ßÒ½ýõ«-1-НАФТИЛАЗО) - 2-NAFTOYNAYA KISLOTA

C21H14N2O7S
Crystal powder, black with violet shade.

It is almost water-insoluble, we will dissolve in 95% alcohol a little, we will dissolve in 50% alcohol and 50% acetone, we will easily dissolve in solutions of caustic alkalis.

At rn> 12,0 has blue coloring, and its complexes with calcium ion in the same conditions — reddish-lilac.

Transition of coloring at direct titration from reddish-lilac to blue.

Indicator solution: 0,025 g of the indicator dissolve in 100 ml 50% of alcohol or acetone.

Indicator mix: 0,25 g of the indicator and 25 g of sodium of chloride pound in mortar and mix.


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