1,8-Dinitronaphthalene
- CAS No.
- 602-38-0
- Chemical Name:
- 1,8-Dinitronaphthalene
- Synonyms
- 1,8-Dinitronaphthale;1,8-Dinitrophthalene;LABOTEST-BB LT00436938;1,8-DINITRONAPHTHALENE;1,8-dinitro-naphthalen;Naphthalene, 1,8-dinitro-;1,8-Dinitronaphthalene,85%;1,8-Dinitronaphthalene, NSC 6323;1,8-Dinitronaphthalene,97%,contains variableamounts of water;1,8-Dinitronaphthalene, contains variable amounts of water, 97%
- CBNumber:
- CB7853946
- Molecular Formula:
- C10H6N2O4
- Molecular Weight:
- 218.17
- MDL Number:
- MFCD00003918
- MOL File:
- 602-38-0.mol
- MSDS File:
- SDS
| Melting point | 161 °C |
|---|---|
| Boiling point | 358.84°C (rough estimate) |
| Density | 1.4330 (rough estimate) |
| refractive index | 1.7040 (estimate) |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| color | Pale Yellow to Light Yellow |
| Water Solubility | 34mg/L(15 ºC) |
| Stability | Stability Shock and heat sensitive - may react violently if heated or ground. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey | AVCSMMMOCOTIHF-UHFFFAOYSA-N |
| CAS DataBase Reference | 602-38-0(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | H6D9Q0K9E6 |
| NIST Chemistry Reference | Naphthalene, 1,8-dinitro-(602-38-0) |
| EPA Substance Registry System | 1,8-Dinitronaphthalene (602-38-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H228-H315-H319-H335 |
| Precautionary statements | P210-P240-P241-P261-P302+P352-P305+P351+P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36/37/38 |
| Safety Statements | 16-26-36 |
| RIDADR | 2811 |
| WGK Germany | 3 |
| RTECS | QJ4552000 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
1,8-Dinitronaphthalene Chemical Properties,Uses,Production
Chemical Properties
Light yellow to Yellow to Orange powder to crystal.
Uses
1,8-Dinitronaphthalene (cas# 602-38-0) is a compound useful in organic synthesis.
Application
The reduction of 1,8-dinitronaphthalene to diaminonaphthalene is an important organic synthesis unit reaction and an important way to prepare diaminonaphthalene, and its product diaminonaphthalene is an important pigment intermediate. Diaminonaphthalene mainly includes 1,5-diaminonaphthalene and 1,8-diaminonaphthalene.
Preparation
Separation of dinitronaphthalene: Crude mixtures of dinitronaphthalene (5 g, from Table-3 run 8) was placed together with 50 mL acetone in a 100 mL flask, stirred and heated to reflux. The suspension was refluxing for 2 h and then cooled to 30 oC by stirred and filtered quickly. The precipitate was recrystallized by acetone and 1,5-dinitronaphthalene as light yellow crystals (1.725 g) was got. Then the filter liquor was concentrated to one-thirds of original volume, filtered, the precipitate was recrystallized by toluene and 1,8- dinitronaphthalene as light yellow crystals (1.987 g) was got.
1, 5-Dinitronaphthalene: m.p. 215-216 oC, 1H NMR (400 MHz, CDCl3): δ = 7.84 (t, 2H), 8.33 (d, 2H), 8.81 (d, 2H).
1, 8-Dinitronaphthalene: m.p. 172-173 oC, 1H NMR (400 MHz, CDCl3): δ = 7.98 (t, 2H), 8.51 (dd, 4H).
Zeolite-Assisted Regioselective Synthesis of Dinitronaphthalene
Definition
ChEBI: 1,8-dinitronaphthalene is a dinitronaphthalene carrying nitro groups at positions 1 and 8.
General Description
1,8-dinitronaphthalene appears as yellow crystals. (NTP, 1992)
Air & Water Reactions
Insoluble in water.
Reactivity Profile
1,8-Dinitronaphthalene is sensitive to heat and shock.
Fire Hazard
Flash point data for 1,8-Dinitronaphthalene is not available, however 1,8-Dinitronaphthalene is probably combustible.
Safety Profile
Suspected carcinogen. Mutation data reported. When heated to decomposition it emits toxic vapors of NOx
Purification Methods
Crystallise it from *benzene. [Beilstein 5 H 559, 5 II 455, 5 III 1608.]
1,8-Dinitronaphthalene Preparation Products And Raw materials
Raw materials
Preparation Products
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