| Identification | Back Directory | [Name]
calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate] | [CAS]
5850-80-6 | [Synonyms]
CI 15525
PIGMENT RED 68
Einecs 227-456-5
C.I. PIGMENT RED 68)
Pigment red 68 calcium-sodium salt (C.I. 15525)
calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate]
Bis[2-chloro-5-[(2-hydroxy-1-naphthalenyl)azo]-4-(sodiosulfo)benzoic acid]calcium salt
2-Chloro-5-((2-hydroxy-1-naphthalenyl)azo)-4-sulfobenzoic acid, calcium sodium salt (2:1:2)
Benzoic acid, 2-chloro-5-(2-hydroxy-1-naphthalenyl)azo-4-sulfo-, calcium sodium salt (2:1:2)
Benzoic acid, 2-chloro-5-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-4-sulfo-, calcium sodium salt (2:1:2) | [EINECS(EC#)]
227-456-5 | [Molecular Formula]
C34H18CaCl2N4Na2O12S2 | [MOL File]
5850-80-6.mol | [Molecular Weight]
895.62 |
| Hazard Information | Back Directory | [Chemical Properties]
Bright yellow light red. Excellent resistance to solvents such as ethanol, xylene and nitrocellulose. Thermal stability is 140°C. Acid and alkali resistance is poor, and there is migration phenomenon. | [Uses]
Calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate] is mainly used for printing ink, can also be used for the coloring of plastics. | [Synthesis]
Calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate] is prepared by diazotization of 2-chloro-5-amino-4-sulfobenzoic acid, coupling with β-naphthol, and precipitation of calcium salts. |
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