POTENSI ZAT WARNA DARI EKSTRAK ETANOL KULIT MANGGIS DAN KAYU SAPPANG SEBAGAI KALORIMETRI ANION
Abstract
compound is obtained from mangosteen skin while braziline is from sappang tree. Both of compounds can be used as
anion clorimethric due to their hidrocyle and chromophoregroupactive sites. Dyes from mangosteen skin and sappang
tree have been tested on 10 gram of several types of saturated anions (carbonate, sulfate, phosphate, cyanide, acetate,
borax, nitrite, chloride, bromide, and iodide). The results of the tests show that thecolor of the dye from mangosteen skin
changes in cyanide and hydroxide anions. On the other hand, the color of the dye from sappang tree changes in
carbonate, phosphate, cyanide, acetate, nitrite, and hydroxile. UV/Vis is used to detect the limit of cyanide anion.
Methanol and acetone show positive results on both of dyes in cyanide anion. Detection limit of antocyanine and
braziline are 4x10-4 Mand 3x10-4 M respectively. With addition of cyanide anion, antocyanine in acetone has a
batochromic shift at 2x10-4M and dye from sappang tree has detection limit at 1x10-4 M.
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