Sodium Naphthionate

English Name: Sodium Naphthionate

CAS number: 130-13-2

Molecular formula: C10H10NNaO3S

MW: 247.24

EINECS number: 204-975-5

Chemical nature: white or off white platelets crystalline. Freely soluble in water, soluble in 95% ethanol, insoluble in diethyl ether, slightly soluble in concentrated caustic aqueous and ethanol solutions.

Uses: it is used in the preparation of acid, direct dyes and food red pigments, and also as an antidote to nitrite and iodine poisoning

Properties

Sodium 1-naphthylamine-4-sulfonate is white or grayish white flake crystal, easily soluble in water, soluble in 95% ethanol, insoluble in ether, a small amount soluble in concentrated caustic aqueous solution and ethanol solution. The product is used to prepare acid, direct dyes and edible red pigment, and is also used as an antidote for nitrite and iodine poisoning.

CAS No.

130-13-2

Formula

C10H8NNaO3S

Molecular Mass

245.23022

Exact Mass

245.01200

PSA

91.60000

Logp

2.98810

IUPAC

sodium;4-aminonaphthalene-1-sulfonate

Matter Classification

organic

Category

Melting Point

280 °C (dec.)(lit.)

Density

1.6703 g/cm3

Appearance

White or off white flake crystals. Freely soluble in water, soluble in 95% ethanol, insoluble in diethyl ether, slightly soluble in concentrated caustic aqueous and ethanol solutions.

Acidity and Basicity

neutral

HS Code

29214500

Risk Code

R36/37/38

Safety Label

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