| Identification | More | [Name]
1,5-Naphthalenediamine | [CAS]
2243-62-1 | [Synonyms]
1,5-DIAMINONAPHTHALENE
1,5-NAPHTHALENEDIAMINE
1,5-NAPHTHYLENEDIAMINE
LABOTEST-BB LT00053486
NAPHTHALENE-1,5-DIAMINE
NCI-C03021
1,5-DIAMINONAPHTHALENE, FOR FLUORESCENCE
Diaminonaphthalene
1,5-Naphthylendiamin
1,5-DIAMINONAPHTHALENE 99%
1,5-Diaminonapthalene
C.I.76595 | [EINECS(EC#)]
218-817-8 | [Molecular Formula]
C10H10N2 | [MDL Number]
MFCD00004029 | [Molecular Weight]
158.2 | [MOL File]
2243-62-1.mol |
| Chemical Properties | Back Directory | [Appearance]
GREY TO DARK BROWN POWDER | [Melting point ]
185-187 °C(lit.)
| [Boiling point ]
200-210°C 5mm | [density ]
1.4 | [vapor pressure ]
0Pa at 20℃ | [refractive index ]
1.6441 (estimate) | [Fp ]
200-210°C/5mm | [storage temp. ]
Keep in dark place,Inert atmosphere,Room temperature | [solubility ]
0.04g/l | [form ]
Powder | [pka]
4.59±0.10(Predicted) | [color ]
Gray to dark brown | [Water Solubility ]
<0.1 g/100 mL at 20.5 ºC | [BRN ]
907947 | [LogP]
0.91 | [Dissociation constant]
4.21 at 25℃ | [CAS DataBase Reference]
2243-62-1(CAS DataBase Reference) | [IARC]
3 (Vol. 27, Sup 7) 1987 | [NIST Chemistry Reference]
1,5-Naphthalenediamine(2243-62-1) | [EPA Substance Registry System]
2243-62-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N | [Risk Statements ]
R40:Limited evidence of a carcinogenic effect.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
2
| [RTECS ]
QJ3400000
| [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
29215990 | [Safety Profile]
Suspected carcinogen
with experimental carcinogenic,
neoplastigenic, tumorigenic data.
Experimental reproductive effects. Mutation
data reported. When heated to
decomposition it emits toxic fumes of NOx. | [Hazardous Substances Data]
2243-62-1(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Colorless to pale purple crystals or lavender powder. | [Reactivity Profile]
1,5-NAPHTHALENEDIAMINE(2243-62-1) neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. | [Air & Water Reactions]
This chemical is sensitive to prolonged exposure to air. Insoluble in water. | [Hazard]
Questionable carcinogen. | [Fire Hazard]
Flash point data for this chemical are not available. 1,5-NAPHTHALENEDIAMINE is probably combustible. | [Chemical Properties]
GREY TO DARK BROWN POWDER | [Uses]
1,5-naphthalenediamine be used as intermediates for the synthesis of materials. | [Uses]
Aromatic amines likely to have high carcinogenic potency. QSARs of aromatic amines. | [Definition]
ChEBI: A naphthalenediamine compound having amino substituents in the 1- and 5-positions. | [Production Methods]
The 1979 estimated production volume was 50,000 kg in
Germany and Japan. The major use of the compound is
for the manufacture of 1,5-naphthalene diisocyanate and in
the production of polyurethane elastomers.
The potential for exposure to 1,5-naphthalenediamine may
be greatest for workers involved in the manufacture of 1,5-
naphthalene diisocyanate, which is known to hydrolyze
readily to 1,5-naphthalenediamine upon contact with water. | [Purification Methods]
Recrystallise the amino-naphthalene from boiling H2O, but this is wasteful due to poor solubility. Boil it in chlorobenzene (charcoal), filter hot and cool the filtrate (preferably under N2). This gives colourless crystals. Dry it in a vacuum till free from chlorobenzene (odour), and store it in sealed ampoules under N2 away from light. [Beilstein 13 IV 340.] |
|
|