Nitroso R salt/1-Nitroso-2-napthol-3,6-disulfonic acid disodium salt

English Name: Nitroso R salt; 1-Nitroso-2-napthol-3,6-disulfonic acid disodium salt；  1-Nitroso-2-hydroxynaphthalene-3,6-disulfonic acid disodium salt； 3-Hydroxy-4-nitroso-2,7-naphthalene disulfonic acid disodium salt

Other names: nitroso-R-salt; 1-nitroso-2-hydroxynaphthalene-3,6-disulfonic acid; Disodium 4-nitroso-3-hydroxy-2,7-naphthalene disulfonic acid; Nitroso R salt; Test cobalt and iron; Sodium 1-nitroso-2-naphthol-3,6-disulfonate; Test cobalt and iron; Nitroso R salt

CAS No.: 525-05-3

C10H5NNa2O8S2=377.26

Grade: ar

Cobalt sensitivity test: acceptable

Water dissolution test: acceptable

Loss on drying: ≤ 1.0%

Physicochemical  Properties: golden yellow fan-shaped crystal or crystalline powder. Soluble in about 40 parts of water, easily soluble in hot water, slightly soluble in methanol and ethanol. Melting point ＞ 300 ℃. The maximum absorption wavelength is 372nm.

Purpose: biochemical research. Spectrophotometric Determination of cobalt and potassium. Verify silver, barium, calcium, cobalt, iron, nickel and lead.

Save: RT, away from light