| Identification | More | [Name]
1,8-Naphthalic anhydride | [CAS]
81-84-5 | [Synonyms]
1,8-NAPHTHALENEDICARBOXYLIC ACID ANHYDRIDE
1,8-NAPHTHALENEDICARBOXYLIC ANHYDRIDE
1,8-NAPHTHALIC ACID ANHYDRIDE
1,8-NAPHTHALIC ANHYDRIDE
1H,3H-BENZO[DE]ISOCHROMENE-1,3-DIONE
1H, 3H-NAPHTHO(1,8-CD)-PYRAN-1,3-DIONE
NAPHTHALENE-1,8-DICARBOXYLIC ACID ANHYDRIDE
Naphthalene-1,8-dicarboxylic anhydride
NAPHTHALIC ANHYDRIDE
NAPHTHO[1,8,8A-C,D]PYRAN-1,3-DIONE
PROTECT(R)
1,8-naphthalenediocanhydride
1,8-Naphthoic anhydride
1,8-Napthalic anhydride
ai3-09071
Benzo[de]isochromene-1,3-dione
Naphthalenedicarboxylic-1,8-anhydride
naphthalenedicarboxylicanhydride
naphthalic
Naphthalic acid anhydride | [EINECS(EC#)]
201-380-2 | [Molecular Formula]
C12H6O3 | [MDL Number]
MFCD00006925 | [Molecular Weight]
198.17 | [MOL File]
81-84-5.mol |
| Chemical Properties | Back Directory | [Appearance]
BEIGE TO LIGHT BROWN POWDER | [Melting point ]
269 °C | [Boiling point ]
295.48°C (rough estimate) | [density ]
1.2571 (rough estimate) | [vapor pressure ]
0Pa at 25℃ | [refractive index ]
1.5550 (estimate) | [Fp ]
272 °C
| [storage temp. ]
Store below +30°C. | [solubility ]
Chloroform (Slightly, Heated), DMSO | [form ]
Powder | [color ]
Beige to light brown | [Water Solubility ]
decomposes | [Sensitive ]
Moisture Sensitive | [BRN ]
153190 | [LogP]
3.24 | [Surface tension]
72.5mN/m at 1.3mg/L and 20℃ | [Uses]
Dyestuffs, organic synthesis in general. | [CAS DataBase Reference]
81-84-5(CAS DataBase Reference) | [NIST Chemistry Reference]
1,8-Naphthalic anhydride(81-84-5) | [EPA Substance Registry System]
1,8-Naphthalic anhydride (81-84-5) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
2
| [RTECS ]
QK5350000
| [F ]
21 | [TSCA ]
Yes | [HS Code ]
29173980 | [Hazardous Substances Data]
81-84-5(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Chemical Properties]
BEIGE TO LIGHT BROWN POWDER | [Definition]
ChEBI: Naphthalic anhydride is a cyclic dicarboxylic anhydride. | [Purification Methods]
Extract it with cold aqueous Na2CO3 to remove free acid, then crystallise from acetic anhydride. [Beilstein 17 III/IV 6392, 17/11 V 492.] |
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