Name | 1,4-naphthalenedicarboxylic acid |
Synonyms | 1,4-naphthalate 1,4-NAPHTHALIC ACID Naphthalin-1,4-dicarbonsure 4-Naphthalenedicarboxylic acid 1,4-naphthalenedicarboxylic acid 1,4-NAPHTHALENEDICARBOXYLIC ACID NAPHTHALENE-1,4-DICARBOXYLIC ACID |
CAS | 605-70-9 |
EINECS | 210-094-7 |
InChI | InChI=1/C12H8O4/c13-11(14)9-5-6-10(12(15)16)8-4-2-1-3-7(8)9/h1-6H,(H,13,14)(H,15,16) |
InChIKey | ABMFBCRYHDZLRD-UHFFFAOYSA-N |
Molecular Formula | C12H8O4 |
Molar Mass | 216.19 |
Density | 1.54 g/cm3 |
Melting Point | >300 °C (lit.) |
Boling Point | 490.2±28.0 °C(Predicted) |
Flash Point | 264.3°C |
Water Solubility | Insoluble in water. |
Vapor Presure | 2.01E-10mmHg at 25°C |
Appearance | White solid |
Color | White to Yellow to Orange |
BRN | 2051255 |
pKa | 2.71±0.10(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.708 |
MDL | MFCD00014312 |
Physical and Chemical Properties | Small stick crystal. Melting point 309 °c (325 °c). Soluble in ethanol blue fluorescence, insoluble in boiling water. |
Use | For the production of fluorescent whitening agents, dye intermediates |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | 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 |
WGK Germany | 1 |
TSCA | Yes |
HS Code | 29173990 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | the role of dyes, plastics processing aids intermediates. used in the production of fluorescent brighteners, dye intermediates, etc. |
production method | from 1-methyl-4-acetylnaphthalene with potassium dichromate at 200-300 ℃, about 4MPa under the oxidation of 18h. It can also be obtained by liquid phase oxidation of 1, 4-dimethylnaphthalene using cobalt-manganese-bromine as a catalyst at 120 ° C. And about 3kPa. |