Bromothymol blue, Hi-Cert/ACS 5G (GRM120) - Himedia

Bromothymol blue, Hi-Cert/ACS 5G (GRM120) - Himedia Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator.It is typically sold in solid form as the sodium salt of the acid indicator. No. Cat. = GRM120 PRODUCT IDENTIFIER CAS No. : 76-59-5 EC No. : 200-971-2 Molecular Formula : C₂₇H₂₈Br₂O₅S Molecular Weight : 624.38 Synonym : 3 #39;,3 #39; #39;-Dibromothymolsulfonphthalein HS Code : 2934 99 00 Storage : Below 30°C SPECIFICATION Appearance : Light pink to brown or purple or buff crystals or powder Solubility : 20 ppm in ethanol yields clear solution Visual pH Transition : pH 5.80 (yellow) to pH 7.60 (blue) Absorption maxima 1 : 428 - 438 nm (20 ppm in pH 5.80 buffer solution) Absorption maxima 2 : 611 - 621 nm (20 ppm in pH 7.60 buffer solution) Specific Absorbance 1 : 260 - 300 (20 ppm in pH 5.80 buffer solution, at 433 nm) Specific Absorbance 2 : 470 - 520 (20 ppm in pH 7.60 buffer solution, at 616 nm) Loss on drying (at 110°C, 1 hr) : lt;= 3.00% Untuk ketersediaan, harap hubungi terlebih dahulu Harga sudah termasuk PPN Pemesanan Sabtu-Minggu akan diproses Hari Senin