Thymolphthalein CAS 125-20-2
ʻO ka inoa ʻepekema ʻo Thymolphthalein ʻo "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", ʻo ia ka mea hoʻokalakupua. ʻO C28H30O4 ka paona kemika, a ʻo ke kaumaha molekala he 430.54. He pauda kristal keʻokeʻo. Hiki ke maʻalahi i ka ether, acetone, sulfuric acid a me ka alkaline solutions, a hiki ʻole ke hoʻoheheʻe ʻia i ka wai. Hoʻohana pinepine ʻia ʻo ia ma ke ʻano he hōʻailona acid-base, a ʻo kona ʻano pH hoʻololi kala ʻo 9.4-10.6, a hoʻololi ke kala mai ka ʻole i ka uliuli. Ke hoʻohana ʻia, hoʻomākaukau pinepine ʻia i loko o kahi solution 0.1% 90% ethanol. Hoʻomākaukau pinepine ʻia me nā mea hōʻailona ʻē aʻe e hana i kahi hōʻailona hui ʻoluʻolu e hōʻemi i ka laulā hoʻololi kala a ʻoi aku ka maopopo o ka nānā ʻana.
| MEA | KANAWAI | HUA |
| ʻIkepili | Keʻokeʻo i ka pauka keʻokeʻo | Hoʻokō |
| 1H-NMR | Kūlike like me ke kuhikuhi | Holo |
| HPLC maemae | ≥98% | 99.6% |
| Pohō ma ka maloʻo | 1% ka nui | 0.24% |
Hoʻohana pinepine ʻia ʻo Thymolphthalein ma ke ʻano he hōʻailona acid-base, me ka pae hoʻololi o ka waihoʻoluʻu pH o 9.4 a 10.6, a me kahi hoʻololi kala mai ka ʻole a i ka uliuli. Ke hoʻohana ʻia, hoʻomākaukau pinepine ʻia ma ke ʻano he 0.1% 90% ethanol solution, a hoʻohui pinepine ʻia me nā mea hōʻailona ʻē aʻe e hana i kahi hōʻailona hui ʻia e hoʻololi a ʻoi aku ka liʻiliʻi o kona ʻano hoʻololi kala ke nānā aku. No ka laʻana, ʻo kahi hōʻailona i hana ʻia ma ka hui ʻana i kahi solution 0.1% ethanol o kēia reagent me kahi solution 0.1% ethanol o phenolphthalein he kala ʻole i loko o kahi solution acidic, poni i loko o kahi solution alkaline, a piʻi i ka pH 9.9 (kahi hoʻololi kala), ʻo ia ka maʻalahi loa ke nānā aku.
Hoʻopili ʻia nā huahana i loko o ka ʻeke, 25kg / pahu
Thymolphthalein CAS 125-20-2
Thymolphthalein CAS 125-20-2
