Barium sulfate (BaSO₄) thiab barium chloride (BaCl₂) zaum ntawm qhov sib txawv ntawm qhov solubility spectrum, thiab qhov sib txawv ntawd ua rau txhua qhov kev txiav txim siab nyob ib puag ncig lawv siv.Ntuj barium sulfate, ua tiav los ntawm cov ore barite, nqa cov khoom solubility tas li (Ksp) ntawm kwv yees li 1.1 × 10⁻¹⁰ ntawm 25 degree, ua rau nws yog ib qho ntawm cov ntsev tsis muaj kuab lom ntau tshaj plaws. Barium chloride, los ntawm qhov sib txawv, yaj yooj yim hauv dej ntawm kwv yees li 358 g / L ntawm 20 degree. Qhov kev sib piv tseem ceeb no txiav txim siab qhov twg txhua qhov sib xyaw ua haujlwm, txhua qhov kev daws teeb meem zoo li cas, thiab vim li cas cov kws tshaj lij kev muag khoom hauv cov txheej txheem, plastics, thiab drilling industries kho lawv tag nrho cov khoom sib cais.
Nkag siab txog cov khoom siv tshuaj ntawm Barium Sulfate thiab Barium Chloride
Molecular Structure thiab lub cev lub cev
Barium sulfate yog barium ntsev uas muaj ob ions thiab nruab nrab. Nws yog cov khoom dawb, tsis muaj ntxhiab tsw lossis saj, thiab hnyav txog 4.5 grams ib cubic centimeter. Ionic bonds muaj zog heev ntawm sulfate anion thiab barium cation, uas yog vim li cas ob qho tib si tsis yaj yooj yim. Muaj ntau lub zog lattice nyob rau hauv barium chloride (BaCl₂), uas yog tsim los ntawm ob chloride anions rau txhua barium cation. Qhov no txhais tau hais tias cov dej molecules tuaj yeem yooj yim koom nrog cov ions thiab thawb lawv sib nrug nrog kev siv zog me ntsis.
Natural vs. Synthetic Forms thiab Lawv Purity Profiles
Cov ntxhia barite yog siv los ua ntuj barium sulfate, uas yog tom qab ntawd hauv av manually. Me me ntawm silicate thiab carbonate impurities tej zaum yuav nyob rau hauv ore, nyob ntawm seb nws zoo npaum li cas. Thaum koj chemically ua solidified barium sulfate (blanc fixe), nws yuav whiter thiab hais ntau tus sib npaug sib kis.
Tsis tsuas yog ua ob hom yaj yuav luag tib tus nqi hauv dej, tab sis qib sib txawv ntawmnatural barium sulfatecuam tshuam zoo npaum li cas lawv ua haujlwm hauv kev lag luam txheej thiab sib xyaw cov polymers. Nws yog ib qho tseem ceeb uas yuav tsum tau thov daim ntawv pov thawj ntawm Kev Ntsuam Xyuas (CoA) uas teev cov nqi ntawm BaSO₄, silica, thiab poob ntawm kev kub hnyiab thaum ib tug neeg xav yuav ib yam dab tsi tshwj xeeb.
Qhov kub tsis muaj qhov cuam tshuam ntau npaum li cas BaSO₄ dissolves. Qhov kev hloov me me heev thiab tsis tuaj yeem pom ntawm cov txheej txheem kev lag luam kub. Nws mus los ntawm 0.000246 g / 100 mL ntawm 25℃rau 0.000413 g / 100 mL ntawm 100 degree.
Kev sib piv ntawm Kev Solubility: Barium Sulfate vs Barium Chloride
Ksp Tus nqi thiab lawv txhais li cas rau kev lag luam
Barium sulfate (Ksp=1.1 × 10⁻³⁰) siv ntau lub zog kom yaj hauv dej ntau dua li barium chloride (Ksp=1.1 × 10⁻³⁰), uas yaj tag nrho hauv dej thiab ua haujlwm zoo li lub zog electrolyte. Txoj kev ua haujlwm tau hloov pauv los ntawm qhov sib txawv no. Barium chloride yog reactive thiab tuaj yeem siv los ua cov tshuaj siv tshuaj vim tias nws yooj yim rau yaj. Thaum nws sib xyaw nrog sulfate- cov kua dej, nws ua rau BaSO₄ ntshiab, uas yog siv hauv kev lag luam. Barium sulfate yog tshuaj inert, tsis sib tov nrog feem ntau cov khoom xyaw, thiab tsis tawg thaum khaws cia rau ntev.
Barium chloride yog siv rau hauv kev lag luam sib txawv. Raws li cov tshuaj tov tshuaj, hauv kev kho cua sov ntsev, thiab ua rau lwm cov tshuaj barium, zoo li BaSO₄, feem ntau yog siv. Vim tias nws yaj sai sai, nws yuav tsum tau khaws cia rau hauv qhov chaw nyab xeeb thiab ua haujlwm los ntawm cov neeg paub tias lawv ua dab tsi. Tus nqi ntawm cov khoom siv raw yog tsawg dua li tag nrho cov nqi tau txais.
Drilling kua:Ntuj barium sulfatebarite hmoov yog tus qauv hnyav tus neeg sawv cev rau cov roj zoo drilling kua. Nws nyob ze -zero dej solubility kom paub meej tias nws tsis paug cov dej tsim los yog degrade borehole chemistry, thaum nws cov high precision gravity (Ntau tshaj los yog sib npaug rau 4.2 g / cm³ ib API 13A cov qauv) muaj txiaj ntsig ua kom cov av nkos kom tswj tau qhov dej siab.
Paints thiab coatings: Cov tshuaj inertness ntawm BaSO₄ ua rau nws zoo tagnrho functional extender. Hauv cov roj- cov xim pleev xim, barium sulfate yog cov pob tshab thiab ua haujlwm qis - roj- nqus cov khoom siv uas kho qhov sib xws tsis cuam tshuam rau xim. Classic inorganic pigment lithopone - kev sib xyaw ntawm barium sulfate thiab zinc sulfide - muab nws qhov ruaj khov ncaj qha los ntawm BaSO₄'s insolubility.
Muaj cov polymers thiab cov yas: Barium sulfate compounded rau hauv polypropylene lossis ABS txhim kho qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom Barium sulfate sib xyaw ua ke rau hauv polypropylene Nws insolubility ua kom tsis muaj ionic tsiv teb tsaws mus rau hauv lub polymer matrix, tiv thaiv hluav taws xob thiab cov khoom siv hluav taws xob dhau ntawm cov khoom siv lub neej.
Barium chloride nyob ntawm txoj kab kev lag luam sib txawv - nws yog siv los ua cov tshuaj reagent, hauv kev kho cua sov ntsev, thiab hauv kev sib txuas ntawm lwm cov tshuaj barium, suav nrog BaSO₄ nws tus kheej. Nws cov solubility siab txhais tau hais tias nws xav tau kev ceev faj thiab cov kws tshaj lij tuav cov txheej txheem, ua kom tag nrho cov nqi yuav khoom tshaj li tus nqi raw khoom.
Ntuj Barium Sulfate: Tsim, Purity Standards, thiab Kev Txiav Txim Siab
Geological keeb kwm thiab khoom siv thoob ntiaj teb
Deposits ntawm barite tuaj yeem tsim los ntawm hydrothermal lossis sedimentary txheej txheem. Lub tebchaws uas muaj nyiaj txiag tshaj plaws yog Tuam Tshoj, Is Nrias teb, Morocco, thiab Asmeskas. USGS Mineral Commodity Summaries hais tias Tuam Tshoj tseem yog lub ntiaj teb loj tshaj qhov chaw ntawm barite, muab ntau tshaj 40% ntawm lub ntiaj teb cov zis. Qee lub sij hawm cov ore zoo heev thiab qee zaus nws tsis zoo. Barite siv hauv kev lag luam muaj ibnatural barium sulfateqib uas nyob ntawm 85% mus rau ntau dua 98%. Coatings thiab plastics industries them ntau dua rau qib purer.
Raws li txoj cai dav dav, cov pab pawg yuav tsum tau saib qhov tshwj xeeb lub ntiajteb txawj nqus, poob ntawm qhov hluav taws xob (LOI), dawb (ISO brightness), thiab particle loj tis (D50, D97) ntawm barite- muab tau BaSO₱ ua ntej yuav nws. Tus nqi ntawm silica tseem ceeb heev. Cov cuab yeej tshuaj tsuag thiab cov ntsia hlau extruder tuaj yeem tawg yog tias muaj silica ntau dhau. Cov neeg muab khoom lag luam koj tuaj yeem ntseeg tau xaiv cov khoom siv uas tsis muaj silicon ntau hauv lawv thiab siv huab cua- dav hlau milling los ua cov khoom uas yuav luag kheej kheej. Qhov no ua rau cov khoom siv tsis txhob hnav sai sai.
Dab tsi yog qhov sib txawv tseem ceeb ntawm qib ntuj thiab precipitated? Cov lus hauv qab no qhia lawv:
|
Parameter |
Natural BaSO₄ |
Precipitated BaSO₄ |
|
BaSO₄ Purity |
85–98% |
Ntau dua lossis sib npaug li 98.5% |
|
Dawb (ISO) |
90–95% |
96–99% |
|
D50 Particle Loj |
1–15 µm |
0.3–3 µm |
|
Tus nqi Index |
Tsawg-Medium |
Nruab nrab-siab |
Muaj ntau tus nqi nyob rau hauv tej yam ntuj tso hom thaum siv los ua filling nyob rau hauv factories, drilling kua, thiab pleev xim tsev. Nrog rau cov qib precipitated, koj tuaj yeem ua cov tsho zoo tshaj plaws thiab cov yas kev cai uas xav tau kev tswj xyuas zoo dua li lawv saib thiab xav li cas.
Kev Pom Zoo: Yuav Ua Li Cas Xaiv Ntawm Barium Sulfate thiab Barium Chloride
Kev txiav txim Metrics rau B2B Buyers
Thaum koj yuav ob lub tebchaw barium no, lawv feem ntau tsis tuaj yeem tawm tsam ib leeg vim tias lawv yaj sib txawv thiab yog qhov zoo tshaj rau kev ua haujlwm sib txawv. Tab sis cov neeg uas xav yuav BaSO₄ yuav tsum tau ceev faj heev txog qib twg lawv yuav, cov khoom loj npaum li cas, seb daim ntawv pov thawj tiag tiag, thiab ntev npaum li cas lawv tuaj yeem mus yam tsis tau txais ntau dua.
Cov hauv qab no yog qee qhov kev tshuaj xyuas tseem ceeb uas yuav tsum tau siv los xaiv cov neeg xa khoom:
Muaj peev xwm nrhiav tau qhov chaw ore: Qhov twg cov ore los ntawm qhov cuam tshuam rau qhov zoo ntawm natural barium sulfate. Nws yog qhov paub txog kev pheej hmoo ntawm kev yuav khoom uas tus neeg muag khoom yuav tsis muaj nyiaj txaus ntawm tes. Qhov kev pheej hmoo ntawd raug txo qis ntau los ntawm cov neeg muab kev ntseeg siab uas tau muab sijhawm ntev - nkag mus rau cov mines.
Ore qhov chaw traceability: Ntuj barium sulfate zoo yog inseparable los ntawm ore keeb kwm. Tus neeg muab khoom tshem tawm ntawm cov khoom cia yog ib qho kev pheej hmoo ntawm kev yuav khoom. Tsim cov chaw muag khoom nrog cov ntaub ntawv pov thawj, ntev - lub sijhawm kuv nkag mus tau txo qis qhov kev pheej hmoo.
Particle loj sib xws nyob rau hauv batch: Variations nyob rau hauv D50 ntawm kev xa khoom ncaj qha cuam tshuam rau formulation viscosity, dispersion cwj pwm, thiab zaum kawg txheej gloss. Batch-rau-batch sib xws tsis yog-negotiable rau industrial buyers.
Cov ntaub ntawv pov thawj: CoA siv tau, SDS, thiab cov ntaub ntawv soj ntsuam ywj pheej rau cov hlau hnyav thiab cov ntsiab lus silica yog cov hauv paus ntsiab lus. Cov neeg yuav khoom hauv kev lag luam tswj hwm yuav tsum txheeb xyuas RoHS thiab REACH ua raws li qhov tsim nyog.
Yam tsawg kawg nkaus kom muaj nuj nqis thiab kev thauj mus los yooj yim: Cov neeg yuav khoom thoob ntiaj teb B2B tau txais txiaj ntsig los ntawm cov neeg muag khoom muaj peev xwm tuav tau ob lub thawv - thauj khoom ntau thiab cov khoom xa tuaj me me, nrog cov sij hawm ua cov khoom lag luam txhim khu kev qha hauv cov ntaub ntawv ua ntej.
Particle loj yuav tsum yog tib yam nyob rau hauv batch. Qhov sib txawv hauv D50 ntawm kev txiav txim muaj qhov cuam tshuam ncaj qha rau qhov tuab npaum li cas, nws kis tau li cas, thiab qhov ci kawg li cas. Batch-rau-batch tsis tu ncua yog ib qho yuav tsum muaj rau cov neeg yuav khoom lag luam.
Kev siv tswv yim thiab yav tom ntej Trends hauv kev siv Barium Sulfate thiab Barium Chloride
Kev lag luam daim ntawv thov zoo li Solubility
Yog tias koj paub tias cov tshuaj solubility yog dab tsi, koj tuaj yeem qhia tias nws ua haujlwm zoo npaum li cas hauv qee qhov xwm txheej. Thaum barium sulfate yog cov khoom thiab cov tshuaj tsis zoo, nws kuj yog ib qho nyuaj heev rau yaj. Qhov no txhais tau tias nws tuaj yeem siv rau qhov xwm txheej hnyav. Ntawm lwm yam, BaSO₱ yog xav tau rau lub hauv paus rau tsheb, hmoov txheej, hluav taws xob- thaiv cov pob zeb, thiab suab- ua kom cov yas ua kom tsis muaj zog thaum ua haujlwm thiab kev pabcuam. Nws yog ib qho yooj yim heev los ua kom ntau precipitated barium sulfate nrog barium chloride vim nws reacts sai heev nrog dej. Qhov no teeb tsa ib txoj kab xa khoom hauv kev lag luam uas txuas ob yam tshuaj.
Kev hloov pauv tshuab tau zoo dua, uas ua rau BaSO₄ ua los ntawm barite ua haujlwm zoo dua. Nws yooj yim dua rau cov khoom sib xyaw hauv cov polymers uas tsis nyiam dej thaum ntxiv cov khoom sib txuas. Tam sim no, ultra-milling zoo tuaj yeem tau txais D50 qhov tseem ceeb hauv qab 1 µm rau kev siv npog tshwj xeeb. Cov kev hloov no txhais tau hais tias ntuj - qib BaSO₄ tam sim no tuaj yeem sib tw nrog cov qib precipitated hauv kev siv ntau dua uas xav tau kev ua haujlwm siab. Qhov ntawd ua rau qhov sib npaug rau cov neeg yuav khoom zoo dua ntawm tus nqi -kev ua tau zoo.
Xaus
Barium sulfate thiab barium chloride yaj hauv dej hauv ntau txoj kev. Qhov sib txawv no cuam tshuam rau txhua qhov kev txiav txim siab hauv kev lag luam yav tom ntej. Txij li thaum BaSO₄ tsis yaj yooj yim hauv dej, nws nyob ruaj khov thiab tuaj yeem khaws cia tau ntev. Nws tuaj yeem siv rau hauv qhov drilling, plastics, coatings, thiab plastics.Ntuj barium sulfateyog ib daim ntawv ntawm no ruaj khov compound. BaCl₂ yog reactive thiab siv tau raws li ib tug tshuaj choj choj vim hais tias nws dissolves tau yooj yim, tab sis nws yuav tsum tau muab kev saib xyuas ntau.
Thaum procurement pros paub qhov txawv no, lawv muaj peev xwm xaiv tau zoo dua txog qhov twg yuav khoom, yuav ua li cas los soj ntsuam qhov chaw, thiab yuav ua li cas kom paub tseeb tias cov formulation cov ntsiab lus yeej ib txwm. Txhawm rau xaiv cov qib barium sulfate rau kev siv lag luam, qhov tseem ceeb tshaj plaws uas yuav tsum tau saib yog qhov zoo, muab kev ruaj ntseg, thiab cov ntaub ntawv pov thawj.
FAQ
Q1: Ksp ntawm barium sulfate yog dab tsi, thiab vim li cas nws tseem ceeb?
Ksp ntawm BaSO₄ yog kwv yees li 1.1 × 10⁻¹⁰ ntawm 25 degree, txhais tau tias nws dissolves tsawg kawg nkaus hauv dej. Qhov ze ntawm -zero solubility yog vim li cas barium sulfate ua haujlwm raws li cov tshuaj inert muab tso rau hauv cov xim, yas, thiab cov kua dej drilling yam tsis muaj kev cuam tshuam nrog cov khoom nyob ib puag ncig.
Q2: Puas yog ntuj barium sulfate hloov precipitated barium sulfate hauv txheej?
Natural BaSO₄ suits feem ntau muaj thiab architectural txheej formulations. Cov qib Precipitated muab nruj dua particle loj tswj thiab siab dua whiteness rau hwm topcoats. Rau cov qauv kev ua haujlwm ua haujlwm muab tub lim, ntuj - qib barite hmoov muab kev ua tau zoo ntawm tus nqi qis.
Q3: Puas yog ntuj barium sulfate tshuaj lom neeg ruaj khov thaum lub sijhawm ua haujlwm siab - kub?
Yog lawm. BaSO₄ tseem thermally ruaj khov mus txog kwv yees li 1580 degree, ua rau nws sib haum nrog siab -kub polymer compounding thiab hmoov txheej curing cycles tsis yellowing los yog decomposing.
Q4: Kuv yuav thov daim ntawv pov thawj dab tsi thaum muab cov khoom lag luam barium sulfate?
Thov daim ntawv pov thawj ntawm kev soj ntsuam kom paub meej tias BaSO₄ purity, silica cov ntsiab lus, tshwj xeeb lub ntiajteb txawj nqus, whiteness, thiab particle loj. Rau kev tswj hwm kev lag luam, REACH thiab RoHS cov ntaub ntawv ua raws cai yog qhov tseem ceeb.
Q5: Qhov loj me me cuam tshuam li cas barium sulfate kev ua tau zoo hauv cov yas?
Qhov loj me me ua kom zoo dua qhov sib txawv ntawm qhov sib txawv, qhov ci ntsa iab, thiab lub zog txhua yam hauv polymer matrices. Coarser qib tuaj yeem ua rau muaj qhov tsis xws luag thiab ua rau muaj kev puas tsuaj rau cov khoom siv ua haujlwm.
Koom tes nrog Henghao Technology - Koj Trusted Natural Barium Sulfate Supplier
Rau ntau tshaj 20 xyoo,Henghao Technology Development (Hangzhou) Co., Ltd.tau muag cov lag luam hauv 33 lub teb chaws ntuj barium sulfate uas tau kuaj xyuas thiab pom tias muaj cov khoom zoo. Cov neeg tsim khoom ntawm cov txheej txheem, cov yas, thiab cov kua dej drilling tuaj yeem tso siab rau peb kom muab lawv nrog ntuj barium sulfate. Peb cov nqi qis vim tias peb yuav ncaj qha los ntawm cov nroj tsuag, thiab qhov zoo ntawm txhua pawg yog tib yam. Email peb pab neeg tech ntawminfo@henghaopigment.comlossis mus saib henghaocolor.com kom tau txais cov piv txwv thiab tus nqi.
Cov ntaub ntawv
1. US Geological Survey (USGS). Cov ntsiab lus ntawm Mineral Khoom Muag: Barite. 2023.
2. Deer, WA, Howie, RA, & Zussman, J. Kev Taw Qhia rau Pob Zeb-Kev Tsim Cov Pob Zeb. Mineralogical Society of Great Britain thiab Ireland, 2013.
3. Wypych, G. Phau ntawv ntawm Fillers (4th ed.). ChemTec Publ., 2016.
4. American Petroleum Institute. API Specification 13A: Specification rau Drilling Fluids Materials . 2019.
5. Greenwood, NN, & Earnshaw, A. Chemistry of the Elements (2nd ed.). Butterworth-Heinemann, 1997.
6. Braun, JH Dawb Pigments. Phau ntawv Journal of Coatings Technology, 1997.
