Chromic acid / 1,8-dihydroxynaphthalene-3,6-disulfonic acid

English Name: chromotropic acid; 1,8-Dihydroxynaphthylene-3,6-disulfonic acid； 4,5-Dihydroxynaphthalene-2,7-disulphonic acid

Other names: chromic acid; 1,8-dihydroxynaphthalene-3,6-disulfonic acid; 4,5-dihydroxy-2,7-naphthalene disulfonic acid; Colorimetric acid

CAS No.: 148-25-4

C10H8O8S2=320.30

Grade: CP

Sensitivity test: acceptable

Water dissolution test: acceptable

Hydrochloric acid dissolution test: acceptable

Physicochemical properties: white acicular crystal. It is easy to change color in contact with air. Actual goods often have color. dissolve in water

Purpose: biochemical research. Spectrophotometric Determination of chromium, titanium and formaldehyde; Verification of chromium, titanium, chlorate, formaldehyde, nitrate and nitrite; Azo dye intermediate

Save: RT, protected from light