Lead Acetate Trihydrate CAS 6080-56-4

Lead acetate trihydrateyog ib yam tshuaj uas muaj cov mis molecular C4H6O4Pb. 3 (H2O), tseem hu ua lead acetate (II) trihydrate. Dawb crystalline lossis flaky hmoov, cov khoom lag luam feem ntau muaj cov xim av loj lossis grey blocks. Flamable. Thaum raug huab cua, nws absorbs carbon dioxide thiab ua ib yam khoom insoluble hauv dej. Me ntsis acetic acid flavored. Soluble hauv dej, me ntsis soluble hauv cawv, yooj yim soluble hauv glycerol. Cov txheeb ze ntom ntom 2.55 (25/4 degree), melting point 75 degree (sai cua sov), solubility 55.04g / 100g dej, poob dej ntawm 75 degree. Decompose ntawm 200 degree. Cov khoom tsis muaj dej muaj qhov melting ntawm 280 degree, qhov sib txheeb ze ntawm 3.25 (20/4 degree), thiab tuaj yeem yaj 44.3g hauv 100g dej ntawm 20 degree. Tsis tas li ntawd, lead acetate decahydrate yog ib qho dawb orthogonal siv lead ua nrog ib tug txheeb ze ntom ntawm 1.69 (25/4 degree), uas yog heev huab cua thiab dej poob ntawm chav tsev kub. Feem ntau yog siv los npaj lwm cov tshuaj txhuas, xws li txhuas oxide, txhuas carbonate, txhuas nitrate, thiab lwm yam hauv cov organic synthesis, nws tuaj yeem siv los ua cov catalyst lossis precursor rau cov tshuaj tiv thaiv catalytic. Tsis tas li ntawd, nws yog dav siv hauv kev lag luam xws li pigments, dyes, roj hmab, textiles, thiab tshuaj pleev ib ce.

Cov tshuaj formula ntawm lead acetate (II) trihydrate yog Pb (C2H3O2) 2-3H2O. Cov tshuaj no yog tsim los ntawm txhuas, acetate ions, thiab dej molecules. Peb yuav maj mam txheeb xyuas ntau yam ntawm nws cov qauv molecular.

1. Lead ion (Pb2+)
Cov hlau lead ion nyob rau hauv lead acetate (II) trihydrate yog qhov chaw nruab nrab ntawm cov compound. Cov qauv hluav taws xob ntawm cov hlau lead ions yog [Xe] 4f ^ 14 5d ^ 10 6s ^ 2, uas txhais tau tias lawv muaj valence electron uas tuaj yeem tsim cov tshuaj lom neeg. Hauv qhov sib xyaw no, cov hlau lead ions nyob ib puag ncig los ntawm rau lub pa oxygen atom hauv ib puag ncig tetrahedral kev sib koom ua ke.
2. Acetate ion (CH3COO -)
Acetate ions yog qhov tsis zoo them ions tsim los ntawm kev poob ntawm proton los ntawm acetic acid molecules (CH3COOH). Hauv cov hlau lead acetate (II) trihydrate, ob lub acetate ions tsim kev sib koom tes nrog cov hlau lead ions. Tshwj xeeb, txhua acetate ion tsim ib daim ntawv cog lus nrog cov hlau lead ion los ntawm ib qho ntawm nws cov pa atoms.
3. Dej molecules (H2O)
Muaj peb cov dej molecules tam sim no nyob rau hauv cov hlau lead acetate (II) trihydrate. Cov dej molecules no ua ke nrog cov hlau lead acetate los ua trihydrates. Lawv tsim hydrogen bonds nrog lead ions los yog lwm yam dej molecules los ntawm oxygen atoms. Cov dej molecules ua lub luag haujlwm tseem ceeb hauv stabilizing cov qauv siv lead ua ntawm cov tebchaw.

Lead acetate trihydrate, yog ib yam tshuaj uas muaj cov mis molecular Pb(CH3COO)2·3H2O. Nws yog dawb los yog daj me ntsis siv lead ua uas yog hygroscopic thiab yooj yim soluble hauv dej thiab acetic acid. Qhov kev sib xyaw no muaj kev siv dav hauv ntau qhov chaw.

1. Cov khoom siv roj hmab: Hauv cov txheej txheem tsim khoom ntawm qee cov khoom siv roj hmab, cov hmoov lead acetate (II) trihydrate tuaj yeem siv los ua tus neeg sawv cev vulcanizing thiab stabilizer los txhim kho hardness thiab kub tsis kam ntawm cov khoom siv roj hmab.

2. Catalyst: lead acetate (II) trihydrate tuaj yeem siv los ua cov tshuaj tiv thaiv organic, tshwj xeeb tshaj yog cov tshuaj tiv thaiv catalytic cuam tshuam nrog acetic acid thiab acetate. Piv txwv li, nws tuaj yeem siv los catalyze cov synthesis ntawm esters.

3. Dye manufacturing: lead acetate (II) trihydrate plays lub luag haujlwm tseem ceeb hauv kev tsim cov xim. Nws tuaj yeem siv los tsim cov dyes thiab pigments. Piv txwv li, nws tuaj yeem siv los tsim cov xim xws li chrome daj (dichromate).

4. Tshuaj: lead acetate (II) trihydrate kuj siv nyob rau hauv kev lag luam kws tshuaj. Keeb kwm, nws tau siv los ua kev kho mob rau amoebic dysentery. Txawm li cas los xij, vim nws cov tshuaj lom ntau dua, tam sim no tau hloov los ntawm cov tshuaj muaj kev nyab xeeb thiab zoo dua.

5. Analytical chemistry: lead acetate (II) trihydrate yog siv los ua ib qho reagent hauv analytical chemistry thiab tuaj yeem siv los nag thiab cais qee cov hlau ions, xws li txhuas, barium, strontium, tooj liab thiab zinc.

6. Kev tsim roj teeb: Hauv qee hom roj teeb qhuav, txhuas acetate (II) trihydrate yog siv ua ke nrog manganese dioxide ua cov electrolyte.

7. Tshuaj tua kab: lead acetate (II) trihydrate tuaj yeem siv los ua tshuaj tua kab, tshwj xeeb tshaj yog hauv kev ua liaj ua teb thiab vaj. Txawm li cas los xij, qhov kev siv no maj mam poob vim nws muaj peev xwm cuam tshuam rau ib puag ncig thiab ecosystems.

8. Ceramic manufacturing: lead acetate (II) trihydrate yog siv los ua stabilizer thiab plasticizer hauv ceramic manufacturing. Nws tuaj yeem txhim kho qhov hardness thiab kub tsis kam ntawm ceramics thaum txo qhov kub thiab txias.

9. Cov iav fiber ntau reinforced yas (GRP): Hauv GRP manufacturing, lead acetate (II) trihydrate yog siv los ua cov cua sov stabilizer thiab plasticizer los txhim kho cov khoom siv thiab cov khoom siv hluav taws xob.

10. Cov xim thiab cov txheej txheem: txhuas acetate (II) trihydrate yog siv los ua cov yas yas thiab cov tshuaj tua kab mob hauv cov xim thiab cov txheej txheem, uas tuaj yeem txhim kho cov kua dej ntawm cov xim, ua rau adhesion thiab huab cua tsis kam.

11. Kev npaj ntawm cellulose acetate: Hauv kev npaj ntawm cellulose acetate, lead acetate (II) trihydrate tuaj yeem siv los ua ib qho ntawm cov reactants thiab koom nrog cov tshuaj tiv thaiv ua ke nrog lwm cov acetates los tsim cellulose acetate.

12. Cement additives: Hauv cov txheej txheem tsim cov cement, lead acetate (II) trihydrate tuaj yeem siv los ua ib qho ntawm cov khoom ntxiv los txhim kho cov dej ntws thiab cov yas ntawm cov cement thaum txo cov tawv tawv ceev.

13. Kev kho daim ntawv: Thaum lub sij hawm ua daim ntawv kho mob, txhuas acetate (II) trihydrate tuaj yeem siv los ua ib qho ntawm cov nplaum nplaum ntawm cov ntawv txheej los txhim kho cov nyhuv luam ntawv thiab kev ua haujlwm tsis zoo ntawm daim ntawv.

Lead acetate trihydrateyog cov hmoov dawb nrog cov qauv siv lead ua monoclinic. Nyob rau hauv pawg spatial P21/c, cell parameters yog ib =0.8449 nm, b=1.0767 nm, thiab c=1.4099 nm,=90.92 degree. Nws cov qauv muaj tetrahedral sib koom ua ke cov hlau lead ions, acetate ions, thiab dej molecules, nrog txhua cov hlau lead ion nyob ib puag ncig los ntawm rau oxygen atoms, tsim ib qho chaw octahedral kev sib koom tes. Acetate ions thiab dej molecules ua ke nrog cov hlau lead ions los ntawm kev sib txuas ntawm ob txoj kev txuas, tsim cov qauv peb sab.

1. Nws yog tau los ntawm reacting lead oxide nrog acetic acid. Dissolve lead oxide nyob rau hauv 80% kub acetic acid kom txog thaum soaked, lim, ntxiv ib me me ntawm acetic acid mus rau filtrate, thiab evaporate mus rau ib tug txheeb ze ntom ntawm 1.40. Txias, co lim, thiab qhuav kom tau cov hmoov lead acetate. Lub purity ntawm cov hlau lead acetate feem ntau tuaj yeem ncav cuag ntau dua 98%. Tom qab purification, 1% acetic acid tov yuav siv tau rau recrystallization, los yog lead trihydrate acetate yuav yaj nyob rau hauv dej thiab hydrogen sulfide yog qhia rau precipitate lead sulfide thiab lwm yam impurities. Tom qab pom, fluorescent gallium reagents (cov neeg ua haujlwm nyuaj ntawm Co, Al, Cu, thiab lwm yam) raug ntxiv rau cov lim dej, ib qho me me ntawm cov pa roj carbon activated ntxiv, thiab EDTA sodium ntsev ntxiv rau kev kho mob kom tau txais cov khoom qib ntshiab reagent.

2. Dissolve lead oxide (II) nyob rau hauv 50% kub acetic acid kom saturated. Lim, ntxiv ib qho me me ntawm acetic acid rau cov lim dej, evaporate ntawm cov dej da dej mus rau qhov sib txheeb ze ntawm 1.40, cia sawv ntsug, thiab crystals precipitate. Lim thiab qhuav ntawm cov khaubncaws sab nraud povtseg ntawm cov ntawv lim kom tau cov khoom ntshiab. Muab cov khoom no tso rau saum huab cua. Nws yuav nqus cov pa roj xws li carbon dioxide thiab ammonia hauv huab cua, tsim cov carbonates lossis alkaline ntsev. Nws tuaj yeem ua kom huv los ntawm recrystallization nrog 2% mus rau 3% acetic acid aqueous tov. 100g ntawm txhuas acetate yuav tsum tau yaj nyob rau hauv 100mL ntawm 2% mus rau 3% acetic acid aqueous tov. Tom qab cua sov, cov teeb meem insoluble yog lim tawm thaum nws kub. Tom qab cov lim dej txias, nws raug tso cai kom sawv ntsug kom txog thaum cov crystals precipitate, thiab cov muaju yog lim thiab qhuav ntawm chav tsev kub. Tsom ntsoov rau niam cawv mus rau ib nrab ntawm thawj ntim, ntxiv me me ntawm acetic acid, thiab txias nws kom tau txais qee yam khoom ntxiv.

3. Dissolve lead oxide nyob rau hauv kub acetic acid, lim, ntxiv acetic acid rau cov filtrate rau cov tshuaj tiv thaiv, thiab evaporate mus rau ib tug txheeb ze ntom ntawm 1.40. Txias, cais cov muaju, thiab qhuav kom tau cov hmoov lead acetate.

4. Boil 100kg dej distilled nrog chav rau 15 feeb kom tshem tawm carbon dioxide, ces ntxiv 0.5kg ntawm industrial acetic acid thiab 100kg ntawm industrial lead acetate. Nquag ncu kom txog thaum cov hlau lead acetate yaj tag, ces ntxiv ib qho me me ntawm cov pa roj carbon activated, do sib npaug, thiab lim thaum kub (nrog peb txheej ntawm cov ntawv lim). Lub resulting filtrate yog txias, crystallized, centrifuged, thiab qhuav. Tom qab ntawd nws muab tso rau hauv qhov chaw tiaj tus thiab qhuav hauv qhov cub 30-40 degree, qee zaus flipped thiab crushed. Niam cawv tuaj yeem rov ua dua.

Cim npe nrov: lead acetate trihydrate cas 6080-56-4, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom