Methylene xiav hmoov,phenothiazine ntsev, yog ib qho tsaus ntsuab bronze luster siv lead ua los yog hmoov uas yog soluble hauv dej thiab ethanol thiab insoluble hauv ethers. Methylene xiav yog qhov ruaj khov hauv huab cua, thiab nws cov kua dej aqueous yog alkaline thiab tshuaj lom. Methylene xiav yog dav siv nyob rau hauv chemical indicators, dyes, natural dyes thiab tshuaj. Hais txog cov khoom siv tshuaj, methylene xiav tuaj yeem tsim ob chav ntsev nrog feem ntau cov ntsev inorganic. Cov tshuaj aqueous yog alkaline. Tsawg toxicity, zam ntawm daim tawv nqaij thiab qhov muag. Ntxiv dilute sulfuric acid rau cov tshuaj methylene xiav yuav ua rau cov tshuaj ploj. Nws tuaj yeem rov qab tau yog tias ammonia lossis lwg tau ntxiv rau saum huab cua.
Nws muaj ntau yam siv vim nws cov khoom siv tshuaj lom neeg, qhia hauv qab no.
Thawj qhov taw tes yog dyeing: nws tuaj yeem siv los ua tus number case thiab pas dej thiab dyeing ntawm cov ntaub so ntswg lom thiab cov kab mob. Nws tseem tuaj yeem sib xyaw nrog siv lead ua violet thiab daj dextrin hauv qhov piv ntawm 78: 13: 9 los ua alkaline magenta xiav.
Thib ob, hais txog kev kho mob:
Vimmethylene xiavmuaj qhov txo qis, nws txhaj tshuaj yog siv los kho methemoglobinemia. Cov pa roj carbon monoxide me me tuaj yeem raug tshem tawm los ntawm kev txhaj tshuaj methylene xiav. Nws yog siv los kho cov tshuaj sulfanilamide ua xua. Ntxuav nrog nws cov tshuaj tuaj yeem kho cystitis thiab urethritis. Tsis tas li ntawd, methylene xiav yuav raug tso tawm ntawm cov zis li ntawm 30 feeb (txhaj tshuaj) mus rau ob peb teev (qhov ncauj), ua rau cov zis xiav ib ntus, yog li nws kuj tseem siv los txiav txim rau lub raum ua haujlwm hauv kev cog cov ntses ornamental.
Thib peb, tshuaj ntsuam xyuas thiab kev txheeb xyuas:
Hauv kev sim tshuaj, kev tshuaj ntsuam xyuas ntshiab methylene xiav tuaj yeem siv los ua qhov ntsuas adsorption hauv cov tshuaj reagents thiab rau nag lossis daus ntawm perchlorate thiab rhenium thiab catalytic spectrophotometric kev txiav txim siab ntawm selenium thiab molybdenum.
Tib lub sijhawm, methylene xiav kuj oxidizing. Nws tuaj yeem oxidize qee yam tshuaj uas muaj zog txo qis thiab txo kom tsis muaj xim methylene xiav (qee tus neeg hu nws methylene dawb). Tom qab txo qis, qhov txo qis methylene xiav muaj qee qhov kev txo qis thiab tuaj yeem oxidized los ntawm qee yam oxidizing tshuaj, xws li oxygen hauv huab cua, los tsim oxidized xiav methylene xiav. Yog li, methylene xiav tuaj yeem siv rau oxidation-txo titration thiab ua qauv qhia ntawm oxidation-txo oscillating cov tshuaj tiv thaiv. Qhov feem ntau yog kev sim lub raj mis xiav.
Methylene xiavaqueous tov yog xiav nyob rau hauv ib qho chaw oxidizing, tab sis nws yuav raug txo kom tsis muaj xim nyob rau hauv cov ntaub ntawv ntawm kev txo cov neeg sawv cev xws li zinc thiab ammonia. Thaum cov concentration ntawm methylene xiav yog siab, hemoglobin ncaj qha oxidized rau methemoglobin. Thaum tsis tshua muaj siab, nyob rau hauv qhov kev txiav txim ntawm txo coenzyme I dehydrogenase (NADPH), nws tuaj yeem txo kom txo cov methylene xiav, uas tuaj yeem txo cov hlau tsis muaj protein ntau rau hemoglobin.