Phthalic anhydride
Hōʻike huahana
ʻO ka phthalic anhydride, kahi mea hoʻohuihui me ka ʻano kemika C8H4O3, he cyclic acid anhydride i hoʻokumu ʻia e ka dehydration o nā molekala phthalic acid. He pauka crystalline keʻokeʻo, hiki ʻole ke hoʻoheheʻe ʻia i ka wai anuanu, hiki ke hoʻoheheʻe ʻia i ka wai wela, etera, hiki ke hoʻoheheʻe ʻia i ka ethanol, pyridine, benzene, carbon disulfide, a me nā mea ʻē aʻe, a he mea koʻikoʻi kemika. He mea koʻikoʻi ia no ka hoʻomākaukau ʻana i nā plasticizers phthalate, coatings, saccharin, dyes and organic compounds.
ʻIkepili ʻenehana
| Hōʻike | Nā hopena hoʻāʻo | |
| Hoʻāʻo | ≥99.5% | 99.8% |
| Maleic Anhydride | ≤0.05% | 0 |
| Chroma hehee | ≤20 | 5 |
| Hoʻopaʻa wela Chroma | ≤50 | 15 |
| ʻAka Sulfuric Chroma | ≤40 | 5 |
| Ka nana aku | Nā ʻāpana keʻokeʻo a i ʻole ka pauka aniani | Nā ʻōpala keʻokeʻo |
Kahua noi：
ʻO ka phthalic anhydride he mea koʻikoʻi koʻikoʻi kemika a he mea koʻikoʻi koʻikoʻi no ka hoʻomākaukau ʻana i nā plasticizers phthalate, coatings, saccharin, dyes and organic compounds.
