Hoʻolālā kaulana no ka hōʻailona pH Reagent Chemical 99% Thymolphthalein CAS 125-20-2
Hoʻokumu ʻia kā mākou hoʻomohala ʻana i nā mea hana kiʻekiʻe, nā talena maikaʻi loa a me ka hoʻoikaika mau ʻana i nā ʻenehana no ka Popular Design for Chemical Reagent pH Indicator 99%Thymolphthalein CAS 125-20-2, E hui pū kākou i ka lima e hoʻoulu i ka wā e hiki mai ana. Hoʻokipa maikaʻi mākou iā ʻoe e kipa i kā mākou hui a i ʻole e kāhea iā mākou no ka launa pū ʻana!
ʻO kā mākou hoʻomohala ʻana e pili ana i nā mea hana kiʻekiʻe, nā talena maikaʻi loa a me ka hoʻoikaika mau ʻana i nā pūʻali ʻenehana noThymolphthalein a me 125-20-2, Ua lawe nui aku kā mākou huahana i ka hema-hikina Asia Euro-America, a kūʻai aku i ko mākou ʻāina āpau. A ma muli o ka maikaʻi maikaʻi, ke kumukūʻai kūpono, ka lawelawe maikaʻi loa, ua loaʻa iā mākou nā manaʻo maikaʻi mai nā mea kūʻai aku ma waho. Hoʻokipa ʻia ʻoe e hui pū me mākou no nā mea hou aku a me nā pōmaikaʻi. Hoʻokipa mākou i nā mea kūʻai aku, nā hui ʻoihana a me nā hoaaloha mai nā wahi āpau o ka honua e hoʻopili iā mākou a ʻimi i ka launa pū ʻana no nā pono like.
ThymolphthaleinʻO ka inoa ʻepekema ʻo “3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide”, ʻo ia ka mea hoʻoponopono kūlohelohe. 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 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 kala 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 | ʻO ka pauka keʻokeʻo keʻokeʻo | Hoʻokō |
| 1H-NMR | Kūlike like me ke kuhikuhi | Holo |
| HPLC maemae | ≥98% | 99.6% |
| Pohō ma ka maloʻo | 1% ka nui | 0.24% |
Thymolphthaleinhoʻohana pinepine ʻia ma ke ʻano he hōʻailona acid-base, me ka hoʻololi ʻana 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 ala aʻe ma ka pH 9.9 (kahi hoʻololi kala), he mea maʻalahi loa ke nānā.
Hoʻopili ʻia nā huahana i loko o ka ʻeke, 25kg / pahu
Hoʻokumu ʻia kā mākou hoʻomohala ʻana i nā mea hana kiʻekiʻe, nā talena maikaʻi loa a me ka hoʻoikaika mau ʻana i nā pūʻali ʻenehana no ka Popular Design for Chemical Reagent pH Indicator 99% Thymolphthalein CAS 125-20-2, E hui pū kākou i ka lima e hana pū i kahi wā e hiki mai ana. Hoʻokipa maikaʻi mākou iā ʻoe e kipa i kā mākou hui a i ʻole e kāhea iā mākou no ka launa pū ʻana!
Hoʻolālā kaulana noThymolphthalein a me 125-20-2, Ua lawe nui aku kā mākou huahana i ka hema-hikina Asia Euro-America, a kūʻai aku i ko mākou ʻāina āpau. A ma muli o ka maikaʻi maikaʻi, ke kumukūʻai kūpono, ka lawelawe maikaʻi loa, ua loaʻa iā mākou nā manaʻo maikaʻi mai nā mea kūʻai aku ma waho. Hoʻokipa ʻia ʻoe e hui pū me mākou no nā mea hou aku a me nā pōmaikaʻi. Hoʻokipa mākou i nā mea kūʻai aku, nā hui ʻoihana a me nā hoaaloha mai nā wahi āpau o ka honua e hoʻopili iā mākou a ʻimi i ka launa pū ʻana no nā pono like.
