4,4'-Oxydibenzoic Acid
Synonymses: 4,4'-dicarboxy diphenyl ether, 4,4'-oxydiphthalic acid, 4,4'-dihydroxydiphenyl ether, OBBA
| Item | Details |
| CAS No. | 2215-89-6 |
| Molecular Formula | C14H10O5 |
| Molecular Weight | 258.23 |
| Appearance | White to off-white crystalline powder |
| Melting Point | 329℃ |
| Boiling Point | 473.7±30.0℃ (760mmHg) |
| Density | 1.395±0.06 g/cm3 (25℃) |
| Flash Point | 184.1±18.1℃ |
| Refractive Index | 1.638 |
| Solubility | Insoluble in water, slightly soluble in ethanol, acetone and methanol; soluble in DMF, DMSO and alkaline aqueous solutions such as sodium hydroxide solution |
| Stability | Stable under normal temperature and pressure; decomposes under intense heat; neutralizes into salt when contacting strong alkalis; avoid contact with strong oxidants and strong alkalis |
| HS Code | 2918990090 (Other carboxylic acids with additional oxygen-containing groups and their derivatives) |
| Packing | 25kg fiber drum / woven bag lined with PE inner bag |
| Storage Conditions | Store in cool and dry warehouse with sealed packaging; isolate air, strong oxidants and strong alkalis; keep away from heat and open flame, store at room temperature away from light and prevent moisture |
| Personal Protection | Wear dust mask, nitrile rubber gloves and goggles; avoid inhalation of dust and direct contact with skin and eyes |
| Waste Disposal | Collect and dispose uniformly as organic hazardous waste; strictly prohibit direct discharge into sewers or natural water bodies, do not discard arbitrarily |
| Application Fields | Primary use: core monomer for high-performance polymers; modifier and functional additive for polymer materials; fine chemical intermediate for pharmaceuticals; core raw material for optoelectronic functional materials; ligand for MOFs / coordination polymers; intermediate for dyes and fluorescent materials |
