Shaanxi Bloom Tech Co., Ltd. yog ib qho ntawm cov neeg tsim khoom lag luam thiab lwm tus neeg uas piav qhia daws teeb meem 1393-62-6 nyob rau hauv Suav teb. Txais tos rau kev lag luam wholesale tej ntshav siab zoo litmus ntsuas kev daws sim 1393-92-6 kev muag khoom ntawm peb lub hoobkas. Cov kev pabcuam zoo thiab tus nqi tsim nyog muaj.
Litmus Qhov Ntsuas Qhov Ntsuasyog ib qho tsis muaj zog organic acid nrog cov yam ntxwv ntawm cov xim liab xiav. Nws yog cov xim xiav tau rho tawm los ntawm cov nroj tsuag Lichen thiab tuaj yeem yaj hauv dej kom tshwm xim liab doog. Nws yog ib qho uas nquag siv cov kua qaub {{2} BEXT taw qhia nrog cov xim hloov pauv, cov qauv conjugated hloov thiab cov xim hloov pauv. Nws yog ib qho muaj zog organic accicid uas undergoes hloov pauv hauv conjugated qauv thiab cov xim raws li cov kev daws teeb meem acidic thiab alkaline. Uas yog hais, nyob rau hauv kev daws teeb meem, raws li cov acidity lossis alkalinity ntawm kev hloov kua, cov qauv molecules yog lub cim acidic yog qhov kev daws teeb meem liab; Vim tias qhov nce hauv [h +], qhov sib npaug hloov mus rau sab laug. Hauv kev daws teeb meem alkaline, ionization eatilibrium ntawm kev zam rau sab xis, thiab cov kua qaub ntawm lub neej, ua rau cov xim xiav ntawm kev daws; Vim tias qhov nce hauv [OH -}], qhov sib npaug hloov mus rau sab xis. Piv txwv li, hauv kev sim tshuaj siv tshuaj, yog tias koj xav paub seb puas muaj kev daws teeb meem yog kua qaub lossis alkaline, koj tuaj yeem ntxiv cov tshuaj yej litmus. Yog tias txoj kev daws teeb meem liab, ces nws yog acidic; Yog tias txoj kev daws teeb meem xiav, ces nws yog alkaline. Cov xeeb ceem no ua rau lub suab paj nruag ib qho ntawm cov cuab yeej tseem ceeb hauv chav kuaj. Ntxiv rau nws siv hauv chav kuaj, Litmus kuj siv hauv qee lub neej nyob txhua hnub. Piv txwv li, hauv qee cov pawm, litmus yog ntxiv los qhia cov av noo ntawm daim ntaub pawm. Thaum daim ntaub ua qias tuaj ua damp, cov xim hloov pauv ntawm Litmus tuaj yeem pom los ntawm cov neeg, yog li ua rau lawv nco qab los hloov pawm.
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Muab cov xim xiav xim xiav los ntawm Litmus lichens los npajLitmus Qhov Ntsuas Qhov Ntsuasyog ib txoj kev ua tau zoo sib xws nrog ntau kauj ruam. Litsea Lichen yog cov nroj tshwj xeeb uas muaj cov xim sib txawv uas tuaj yeem ua rau cov xim sib txawv hauv qab {}} base ntsuas hauv kev sim tshuaj.
Kev Npaj
1. Cov Khoom Uas Sau
Litmus Lichens:
Xaiv tshiab thiab muaj kuab paug - dawb fichens raws li cov ntaub ntawv raw. Litchi mloog lus feem ntau loj hlob ntawm pob zeb, tawv ntoo, lossis thaj chaw loj hlob yuav tsum zam lub sijhawm sau.
Kuab:
Ethanol (feem ntau yog 95% concentration) thiab dej, siv rau kev rho tawm thiab purifying pigments.
Sim khoom:
Beaker, ntsuas ntsuas lub tog raj kheej, iav Qws, cov ntawv lim, funillation Apparatus, Ph ntawv ntsuas PH, sib nqus Stirrer, thiab lwm yam.
2. Kev Ntsuas Kev Nyab Xeeb
Ua ntej ua ib qho kev sim, nws yog qhov tsim nyog yuav tsum tau hnav ris tsho ntxhua khaub ncaws, hnab looj tes, thiab geggles kom paub meej tus kheej kev nyab xeeb.
Qhov cua zoo yuav tsum tau tswj hwm hauv chav kuaj kom tsis txhob muaj kev cuam tshuam ntawm cov roj teeb meem.
Extraction txheej txheem
1. Ua Ntej Ua Ntej
Ntxuav lub pob zeb moss kom tshem tawm cov av saum npoo av, impurities, etc • Ceev faj kom tsis txhob siv dej ntau dhau.
Qhuav cov pob zeb ntxuav pob zeb mos lossis maj mam so nws qhuav nrog daim ntaub so ntswg kom tshem tawm ntau dhau noo.
2. Crushing thiab so
Siv cov tshuaj khib lossis grinder kom zom cov lihen rau hauv cov khoom me me rau cov xim ntxiv.
Hloov cov pob zeb tsoo lithalt hmoov rau ib tug beaker thiab ntxiv tus nqi ntawm ethanol (xws li 50ml ethanol rau ib txwm hmoov) rau tag nrho cov hmoov.
Siv lub sib nqus stirrer lossis phau ntawv sib xyaw ua kom huv si sib xyaw cov pob zeb ua kom huv si nrog ethanol, thiab cia nws sawv ntsug rau ib lub sijhawm (xws li 24 teev) kom tso cov xim kom yaj tag los hauv ethanol.
3. Pom thiab ua kom huv
Lim lub soaking tov siv cov ntawv lim thiab funnel tshem tawm insoluble cov immurities tsis txaus ntseeg.
Cov tshuaj lim ethanol yuav muaj qee qhov tsis zoo thiab qee cov xim uas yaj tau, uas xav tau kom huv ntxiv. Lub purity ntawm cov pirments tuaj yeem txhim kho los ntawm kev so thiab lim.
Muaj qee kis, txhawm rau tshem tawm alkaline impurities los ntawm kev hloov pauv xim etethas acid tuaj yeem muab cov tshuaj lim kom haum rau qhov nruab nrab rau nruab nrab lossis tsis muaj zog acidic.
Npaj ntawm Litmus qhov ntsuas
1. Kev npaj daws
Dilute lub purified ethanol daws (uas twb muaj litmus pig (}} {{{}}
Them sai sai rau kev tswj hwm stirring thaum lub sijhawm ua kom muaj kev sib thooj ntawm kev daws teeb meem.
2. Cov kua hauv paus kev cai
Txhawm rau qhov ntsuas tau kom raug hloov xim nyob rau hauv acidic thiab alkaline ib puag ncig, nws yog ib qho tsim nyog rau zoo tune nws tus nqi. Qhov no feem ntau yog ua tiav los ntawm kev ntxiv tus nqi tsim nyog ntawm cov kua qaub lossis puag. Txawm li cas los xij, vim yog qhov rhiab ntawm Litmus nws tus kheej kom hloov pauv hauv Ph, cov kauj ruam no yuav tsum ceev faj.
Ph xeem strips lossis Ph Meters tuaj yeem siv los saib xyuas PHOT ntawm kev daws teeb meem, thiab dilutia acid los yog maj mam ntxiv raws li xav tau kev hloov kho.
3. Kev Ntsuas Xyuas Kev Nyab Xeeb
Qhov npaj tau Litmus xav tau kev ntsuas kev ruaj khov kom ntseeg tau tias nws tuaj yeem tswj cov xim hloov pauv tau raws li cov xwm txheej sib txawv.
Qhov ntsuas tau tuaj yeem muab tso rau hauv acidic, nruab nrab, thiab alkaline ib puag ncig kom pom seb nws cov xim hloov pauv tau thiab ntev {{{ntev.
Litmus Qhov Ntsuas Qhov Ntsuas, raws li ib tug dav siv cov kua qaub - Base taw qhia, koom nrog cov tshuaj thiab cov txheej txheem siv lub cev nyob rau hauv nws cov qauv xim. Nws yog ib feem tseem ceeb ntawm kev qhia chemistryable thiab ib qho cuab yeej tseem ceeb kom to taub cov kev hloov pauv ntawm cov kev daws teeb meem.
Nws yog lub ntuj uas muaj cov organic muaj rho tawm los ntawm Lichen nroj tsuag, thiab yog siv los ua cov kua qaub {} Boad} cov xim muaj zog lossis alkalinity ntawm kev daws. Nyob rau hauv qhov, nws mas muaj nyob rau hauv ob daim ntawv: xiav thiab liab, sib xws rau nws cov kua qaub thiab alkaline, feem. Thaum yaj nyob rau hauv cov kuab tshuaj lossis dej caw ua kom pom cov xim sib txawv, yog li kev txiav txim siab cov acidity lossis alkalinity ntawm kev daws teeb meem.
Cov qauv molecular ntawm litmus yog complex, muaj ntau cov tshuab sib txuas thiab cov pab pawg ua haujlwm, uas txiav txim siab nws cov tshuaj tshwj xeeb. Nyob rau hauv acidic tej yam kev mob, qee pab pawg ua haujlwm (xws li Phenolic Hydroxyl pawg) hauv Litmus Molecules Undergo-kev tawm tswv yim, sib sau cov nqi ntawm ions. Nyob rau hauv lub xeev no, litmus molecules nyiam nqus ntev wavelengths ntawm lub teeb (xws li lub teeb liab (xws li kev daws teeb liab), ua rau muaj kev daws teeb meem xim liab. Ntawm qhov tsis sib xws, nyob rau hauv alkaline tej yam kev mob, qee pab pawg ua haujlwm (xws li cov pab pawg carboxyl) hauv cov roj carboxules poob lawv cov protons poob lawv cov protons thiab daim ntawv tsis zoo them ions. Nyob rau lub sijhawm no, kev nqus wavelengths ntawm lub teeb (xws li xiav lub teeb) los ntawm lub teeb xiav) los ntawm cov lwg me me yog txhim kho, thiab cov kev daws teeb meem xiav.
Lub dispolational txheej txheem tau tsuas yog ua raws li ionization sib npaug hloov ntawm nws cov molecules hauv cov chaw sib txawv. Tshwj xeeb, thaum kev daws teeb meem yog acidic (ph<7), the acidic groups (such as phenolic hydroxyl groups) in the litmus molecule accept hydrogen ions (H+) from the solution, undergo protonation reactions, and form positively charged ions. This ionic structure enhances the absorption of red light by litmus molecules, resulting in the solution appearing red. As the pH value of the solution increases, the concentration of hydrogen ions gradually decreases, and the acidic groups in the litmus molecules begin to release hydrogen ions, returning to neutral or alkaline forms. When the solution reaches the alkaline range (pH>7), pawg alkaline (xws li cov pawg carboxyl) nyob rau hauv lub litmus molecules poob lawv cov protons poob lawv cov protons thiab daim ntawv tsis zoo them rau ions. Cov tswv yim ion no txhim kho cov nqus ntawm lub teeb xiav, ua rau cov tshuaj tsis haum xiav.
Nws yog tsim nyog sau tseg tias cov xim hloov tsis yog instantaneous, tab sis muaj thaj chaw hloov chaw, hu ua "xim hloov ntau yam". Tsis pub dhau qhov no, cov xim ntawm kev daws yuav maj mam hloov nrog kev hloov pauv me me hauv pH, hloov los ntawm liab rau xim xiav, thiab tom qab ntawd xiav. Cov xim hloov pauv no feem ntau yog siv los kwv yees li ntawm tus nqi ntawm kev daws teeb meem.
Cov xim hloov pauv tau cuam tshuam los ntawm ntau yam ntawm ntau yam, feem ntau yog suav nrog cov hauv qab no:
(1) Kev daws qhov kub:
Kev hloov nyob rau hauv qhov kub yuav cuam tshuam kev ionization eioniation eionilibrium ntawm litmus molecules, yog li cuam tshuam lawv cov nyhuv hloov pauv. Feem ntau hais lus, raws li qhov kub nce ntxiv, ionization sib npaug kev hloov pauv, piv txwv li tus nqi p po uas hloov xim hloov tau).
(2) Hom lus:
Cov kuab tshuaj sib txawv muaj cov teebmeem sib txawv ntawm cov solubility thiab one℃ntawm litmus molecules. Piv txwv li, thaum dej siv los ua cov kuab tshuaj, lub discoloration nyhuv ntawm litmus yog feem ntau hais cov ntsiab lus; Hauv qee cov tshuaj kuab tshuaj organic, lub discoloration ntawm Litmus tuaj yeem ua tsawg dua lossis ploj mus.
(3) Kev daws teeb meem:
Cov concentration ntawm Litmus qhov ntsuas kuj tseem tuaj yeem cuam tshuam nws cov xim hloov pauv. Kev nce siab ntau dhau yuav ua rau cov xim uas tsaus ntuj heev thiab nyuaj rau kev txiav txim siab raug; Txawm li cas los xij, qhov qis tshaj plaws yuav ua rau muaj kev pom zoo tsawg.
(4) coexisting ions:
Lwm cov ions hauv cov tshuaj, tshwj xeeb yog cov tuaj yeem sib txuam nrog cov roj av hloov pauv, thiab lwm yam.
Litmus Qhov taw qhia muaj ntau cov ntawv thov hauv Chemistry Kev Qhia, ntsuas kev lag luam, chaw tsim khoom, thiab lwm thaj chaw vim nws cov yam ntxwv yooj yim thiab intuitive. Nrog rau kev txhim kho thev naus laus zis, tib neeg kuj tau tsim ntau cov kua qaub tshiab, xws li hloov xim me, thiab cov xim sib txawv, uas tuaj yeem ua tau raws li cov kev xav tau ntawm cov kev xav tau sib txawv. Txawm li cas los xij, raws li ib qho ntawm qhov ntxov tshaj plaws tau tshawb acid {}} Base ntsuas cov ntsuas, qhov xwm txheej ntawm Towmus tseem tsis muaj tseeb.
Cov xim hloov pauv ntawm Litmus qhov ntsuas yog qhov txheej txheem nyuaj nrog ntau yam xws li molecular qauv, thiab kho qhov muag. Los ntawm kev nkag mus tob tob txog nws cov xim hloov pauv, peb tuaj yeem ua tiav cov cuab yeej ua kom zoo thiab muaj kev ntseeg tau ntawm kev sim tshuaj xyuas kev sim. Nyob rau tib lub sijhawm, ua ib qho cuab yeej tseem ceeb hauv kev kawm siv tshuaj, tus taw qhia kev tsis paub txog cov khoom siv, txhawb cov neeg nyiam thiab kev tshawb fawb muaj kev tshawb fawb tshuaj lom neeg.
Muab cov xim xiav xim xiav los ntawm Litmus lichens los npajLitmus Qhov Ntsuas Qhov Ntsuasyog ib txoj kev ua tau zoo sib xws nrog ntau kauj ruam. Litsea Lichen yog cov nroj tshwj xeeb uas muaj cov xim sib txawv uas tuaj yeem ua rau cov xim sib txawv hauv qab {}} base ntsuas hauv kev sim tshuaj.
Kev Npaj
1. Cov Khoom Uas Sau
Litmus Lichens: xaiv tshiab thiab muaj kuab paug - dawb fichens raws li cov ntaub ntawv raw. Litchi mloog lus feem ntau loj hlob ntawm pob zeb, tawv ntoo, lossis thaj chaw loj hlob yuav tsum zam lub sijhawm sau.
Kaus: ethanol (feem ntau yog 95% concentration) thiab dej, siv rau kev rho tawm thiab ua kom pigifying pigments.
Sim ua khoom: beaker, ntsuas lub tog raj kheej, iav pas, funillation cov ntawv, Ph ntawv ntaus ntawv, sib npaug Stirrer, thiab lwm yam.
2. Kev Ntsuas Kev Nyab Xeeb
Ua ntej ua ib qho kev sim, nws yog qhov tsim nyog yuav tsum tau hnav ris tsho ntxhua khaub ncaws, hnab looj tes, thiab geggles kom paub meej tus kheej kev nyab xeeb.
Qhov cua zoo yuav tsum tau tswj hwm hauv chav kuaj kom tsis txhob muaj kev cuam tshuam ntawm cov roj teeb meem.
Extraction txheej txheem
1. Ua Ntej Ua Ntej
Ntxuav lub pob zeb moss kom tshem tawm cov av saum npoo av, impurities, etc • Ceev faj kom tsis txhob siv dej ntau dhau.
Qhuav cov pob zeb ntxuav pob zeb mos lossis maj mam so nws qhuav nrog daim ntaub so ntswg kom tshem tawm ntau dhau noo.
2. Crushing thiab so
Siv cov tshuaj khib lossis grinder kom zom cov lihen rau hauv cov khoom me me rau cov xim ntxiv.
Hloov cov pob zeb tsoo lithalt hmoov rau ib tug beaker thiab ntxiv tus nqi ntawm ethanol (xws li 50ml ethanol rau ib txwm hmoov) rau tag nrho cov hmoov.
3. Pom thiab ua kom huv
Lim lub soaking tov siv cov ntawv lim thiab funnel tshem tawm insoluble cov immurities tsis txaus ntseeg.
Cov tshuaj lim ethanol yuav muaj qee qhov tsis zoo thiab qee cov xim uas yaj tau, uas xav tau kom huv ntxiv. Lub purity ntawm cov pirments tuaj yeem txhim kho los ntawm kev so thiab lim.
Siv lub sib nqus stirrer lossis phau ntawv sib xyaw ua kom huv si sib xyaw cov pob zeb ua kom huv si nrog ethanol, thiab cia nws sawv ntsug rau ib lub sijhawm (xws li 24 teev) kom tso cov xim kom yaj tag los hauv ethanol.
Muaj qee kis, txhawm rau tshem tawm alkaline impurities los ntawm kev hloov pauv xim etethas acid tuaj yeem muab cov tshuaj lim kom haum rau qhov nruab nrab rau nruab nrab lossis tsis muaj zog acidic.
Npaj ntawm Litmus qhov ntsuas
1. Kev npaj daws
Dilute lub purified ethanol daws (uas twb muaj litmus pig (}} {{{}}
Them sai sai rau kev tswj hwm stirring thaum lub sijhawm ua kom muaj kev sib thooj ntawm kev daws teeb meem.
2. Cov kua hauv paus kev cai
Txhawm rau qhov ntsuas tau kom raug hloov xim nyob rau hauv acidic thiab alkaline ib puag ncig, nws yog ib qho tsim nyog rau zoo tune nws tus nqi. Qhov no feem ntau yog ua tiav los ntawm kev ntxiv tus nqi tsim nyog ntawm cov kua qaub lossis puag. Txawm li cas los xij, vim yog qhov rhiab ntawm Litmus nws tus kheej kom hloov pauv hauv Ph, cov kauj ruam no yuav tsum ceev faj.
3. Kev Ntsuas Xyuas Kev Nyab Xeeb
Qhov npaj tau Litmus xav tau kev ntsuas kev ruaj khov kom ntseeg tau tias nws tuaj yeem tswj cov xim hloov pauv tau raws li cov xwm txheej sib txawv.
Qhov ntsuas tau tuaj yeem muab tso rau hauv acidic, nruab nrab, thiab alkaline ib puag ncig kom pom seb nws cov xim hloov pauv tau thiab ntev {{{ntev.
Ph xeem strips lossis Ph Meters tuaj yeem siv los saib xyuas PHOT ntawm kev daws teeb meem, thiab dilutia acid los yog maj mam ntxiv raws li xav tau kev hloov kho.
Kev siv shrongus raws li cov tshuaj lom neeg ntsuas kom cov tshuaj acidity lossis alkalinity ntawm kev daws teeb meem yog thawj zaug tshuaj ntsuab (1627- 1691). Yuav ua li cas kom yooj yim ntsuas cov acidity lossis alkalinity ntawm kev daws teeb meem tau mob taub hau thiab tsis paub pab rau menyuam yaus thiab lwm cov kws tshawb fawb. Tab sis muaj ib hnub, txoj kev tig tau tshwm nyob rau hauv pem hauv ntej ntawm tus me nyuam. Txog rau hnub no, Boyle tso ib qho zoo nkauj paj nruag ntawm violets uas nws nyuam qhuav tau khaws mus rau hauv lub vase hauv chav kuaj thiab pib ua kev sim. Tab sis nws yuam kev poob ob peb tee ntawm hydrochloric acid mus rau lub paj nruag violet. Boyle, leej twg nyiam paj, rinsed nrog dej huv. Lub sijhawm no, Boyle pom tias lub paj tawg tau tig mus ua paj liab! Vim li cas thiaj ua violets tig liab? Boyle muaj kev zoo siab heev thiab zoo siab nyob rau tib lub sijhawm, thiab nws tau txiav txim siab tshawb nrhiav thiab nthuav tawm qhov tseeb. Boyle ua cov kev sim siv hno3, H2SO4, thiab Ch3Coo4, thiab cov txiaj ntsig tau zoo ib yam li- cov nplaim paj tawg. Tom qab cov kev sim ua dua, tus me nyuam yaus tau txiav txim siab tias cov extract ntawm cov paj violet tuaj yeem siv los ntsuas seb txoj kev daws teeb meem actidic. Thawj yeej tau tiav lawm, tab sis Boyle tsis txaus siab thiab sim nrhiav lwm cov tshuaj los sim alkalinity. Nws tau muab rho tawm los ntawm cov paj, tshuaj ntsuab, tawv, cag, thiab ntsuas lawv cov xim hloov pauv ntawm alkaline daws ib leeg. Thaum kawg, nws tau tshawb pom tias kev daws teeb meem Alkaline tuaj yeem tig cov kua ntshav ua kua tau muab los ntawm cov ntaub qhwv xiav. Txawm li cas los xij, Boyle tsis nres nyob ntawd. Nws xav: tuaj yeem siv los ntsuas kom ntsuas ob qho tib si acidity thiab alkalinity? Nws tau sim tso cov extract ntawm cov litmus rau cov txiaj ntsig hydrochloric raws li kev sim acidity nrog violets - lub litmus extract kuj tau muab liab! Qhov teeb meem tau daws tiav. Litmus reagent puv xiav thaum raug alkali thiab liab thaum raug rau cov kua qaub, uas yog qhov taw qhia Bidirectator uas tau tshawb nrhiav! Txij ntawd mus,Litmus Qhov Ntsuas Qhov Ntsuastau siv dav siv los sim cov acidity thiab alkalinity ntawm kev daws teeb meem. Boyle cov kev tsim txom tseem ceeb tau ua nyob rau hauv 1646 thiab tseem muaj dav hnub no. Yog li, peb tuaj yeem yooj yim pom cov acidity lossis alkalinity ntawm kev daws hnub no, ua tsaug rau tus poj Boyle!
Cim npe nrov: Litmus Qhov Ntsuas Nruab Nrab CAS 1393-92-6, Cov chaw tsim khoom, chaw tsim khoom, Hoobkas, lag luam wholesale, yuav, nqe, loj, loj, rau muag