Fenofltaleina IND ACS 250gr

C20H14O4

M.W : 318,32 CAS : 77-09-8 EC : 201-004-7 EC INDEX : 604-076-00-1 H : H350-H341-H361FP : P281-P308+P313-P405-P501

Specifications:

Appearance A white / almost white powder

Assay 98.0-101.0%

Identification Conforms

Loss on drying ≤ 0.5%

Residue on roasting (SO4) ≤ 0.1%

Acidity or alkalinity Complies

Chloride (Cl–) ≤ 0.01%

Thickness according to DIN 53105 Conforms

Appearance of solution Passes test

Heavy metals ≤ 0.001%

Related substances ≤ 0.5%

Sulfates (SO4) ≤ 0.02%

Thermal resistance

Transition range pH 8.2-10

colourless to red-violet

Practically insoluble in water