Rosso fenolo ACS 5 g

Rosso fenolo IND ACS
C19H14O5S
Fenolsolfonftaleina
M.W: 354,38 CAS: 143-74-8 EC: 205-609-7 TARIC: 29349990
H: H315;H335 P: P261;P264;P271;P280;P302+P352;P304+P340;P403+P233;P501

Appearance ≤ Reddish powder
Visual transition range ≤ From pH 6.8 (yellow) – 8.2 (red)
Absorption maxima at pH 6.5(1) 430 – 435nm
Absorption maxima at pH 8.2(2) 557 – 560nm
Loss on drying (110 °C) ≤ 5%
Clarity of solution ≤ Passes ACS test