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Naphthalene-1,8-diamine 479-27-6 1,8-Diaminonaphthalene
1,8-Diaminonaphthalene CAS 479-27-6
Naphthalene-1,8-diamine CAS 479-27-6
Name: 1,8-Diaminonaphthalene
Synonyms: Naphthalene-1,8-diamine, technical;1,8-Diaminonaphthalene (1,8-Naphthalene diamine);1,8-DIAMINONAPHTHALONE;1.8-DIAMINA-NAPTHALENE 99.6+%;1,8-Diaminonaphthalene,99%;1,8-Diaminonaphthalene,90%,tech.;Naphthalene-1,8-diamine;1,8-Diaminonaphthale
CAS: 479-27-6
MF: C10H10N2
MW: 158.2
EINECS: 207-529-8
Naphthalene-1,8-diamine; 1,8-Diaminonaphthalene is an organic compound with the formula C10H6(NH2)2. It is one of the diamine derivatives of naphthalene. It is a colorless solid that darkens in air due to oxidation. It is a precursor to commercial pigments.
Appearance & Physical State Brown-red solid.
Density 1.234 g/cm3
Boiling Point 205ºC (12 mmHg)
Melting Point 63-66ºC
Flash Point 198.7ºC
Refractive Index 1.6829
Water Solubility slightly soluble
Stability Stable at room temperature in closed containers under normal storage and handling conditions.
Storage Condition Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor Pressure 3.93E-05mmHg at 25°C
Safety Info
Hazard Class 6.1
Safety Statements S24-S26-S36/37/39
HS Code 29215940
Product Categories: -;Intermediates of Dyes and Pigments;Benzene derivatives;Organics;Building Blocks;Chemical Synthesis;Nitrogen Compounds;Organic Building Blocks;Polyamines
Mol File: 479-27-6.mol
1,8-Diaminonaphthalene Structure
1,8-Diaminonaphthalene Chemical Properties
Melting point 60-65 °C(lit.)
Boiling point 205 °C12 mm Hg(lit.)
density 1.1265
refractive index 1.6829
Fp 205°C/12mm
storage temp. Store below +30°C.
solubility methanol: soluble
form Chunks or Crystalline Mass
color Grayish-red to gray or dark brown
Water Solubility slightly soluble
MSDS Information
1,8-Diaminonaphthalene Usage And Synthesis
Chemical Properties Off white powder
Uses Lubricating-oil antioxidant, analytical reagent
Purification Methods Crystallise 1,8-diaminonaphthalene from water or aqueous EtOH, and sublime it in a vacuum. The N,N'-dimethyl derivative [20734-56-9] has m 103-104o and pK2 5 5.61, the N,N,N'-trimethyl-derivative [20734-57-0] has m 29-30o and pK2 5 6.43. [Hodgson et al. J Chem Soc 202 1945, Beilstein 13 IV 344.]
1,8-Diaminonaphthalene Preparation Products And Raw materials
Preparation Products C.I. 564100-->Solvent Red 135-->Solvent Red 179
China
