MACHEREY-NAGEL Test papers for qualitative determinations/ Turmeric (boric acid)
Qualitative determination of ions and chemical compounds
With the aid of test papers for qualitative determinations, the presence of Ion and chemical compounds can be asserted with low effort.
A color change is effected, if the concentration of the researched substance is situated above the specific detection limit.
Criminal investigations: Peroxtesmo KM, Phosphatesmo KM
Milk analysis: Peroxtesmo MI, Phosphatesmo MI
Water test: Watesmo, Wator
Oil determination: Oil test paper
MACHEREY-NAGEL Test paper Turmeric (boric acid)
Quick and easy determination of boric acid and borates
The test paper allows the quick and easy detection of boric acid and borates. It is impregnated with curcumin, the yellow dye extracted from the roots of Curcuma tinctoria (yellow ginger). The paper is dipped into the sample containing hydrochloric acid (pH 1 - 2). Afterwards it is allowed to dry. In presence of borate the paper turns orange to red. Dipping into conc. sodium hydroxide causes a green-black color. In the absence of borate, sodium hydroxide leads to a brown-red color.
other rapid tests