1,8-Diaminonaphthalene

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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