Dab tsi yog sulfuric acid CAS 7664-93-9

Sulfuric acid yog ib tug muaj zog acidic, oily kua uas tej zaum yuav pom tseeb rau huab nyob rau hauv tsos. Concentrated sulfuric acid ua ob qho tib si oxidizing thiab dehydrating tus neeg sawv cev. Sulfuric acid muaj nyob rau hauv ntau qib xws li qib electrolyte rau roj teeb, mus rau 93 qhov hnyav feem pua, 98 qhov hnyav feem pua, thiab 20-22 qhov hnyav feem pua fuming oleum uas muaj ntau tshaj cov sulfur trioxide. Qib feem ntau xa khoom yog 93 qhov hnyav feem pua. Sulfuric acid yog ib yam khoom tseem ceeb heev, ib lub teb chaws cov sulfuric acid ntau lawm yog ib tug zoo qhia tau hais tias nws muaj zog muaj zog rau lub xyoo pua xeem los yog li ntawd.

Ortho-Xylene CAS:

Epichlorohydrin CAS :

Sodium Hydrosulfite CAS TSIS TAU

Sodium Hypophosphite CAS TSIS TAU

Melamine CAS 108-78-1

Purified Terephthalic Acid Cas 100-21-0

Isobutylene CAS TSIS TAU

Methyl Acrylate CAS:

Styrene Cas 100-42-5

Vim Li Cas Xaiv Peb

01/

Cov khoom zoo
Peb ib txwm muab cov neeg siv khoom xav tau thiab kev cia siab nyob rau hauv thawj qhov chaw, ua kom zoo dua, kev txhim kho txuas ntxiv, nrhiav txhua lub sijhawm los ua kom zoo dua, muab cov neeg siv khoom nrog lawv cov kev cia siab ntawm cov khoom zoo, muab cov neeg siv khoom txaus siab tshaj plaws txhua lub sijhawm.

02/

Kev Tswj Xyuas Zoo
Tag nrho cov khoom yuav raug soj ntsuam nruj ua ntej ua zaub mov xa tuaj. MCC ib txwm hais kom muab cov khoom zoo. Peb ntseeg ruaj khov tias qhov zoo yog lub hauv paus ntawm txhua yam.

03/

Khoom siv Advanced
Peb siv cov kev ntsuas zoo los xyuas kom meej tias peb ua haujlwm nrog kev lag luam cov cuab yeej zoo tshaj plaws thiab peb cov cuab yeej siv tau zoo thiab tswj xyuas kom zoo.

04/

Pab neeg tshaj lij
Peb muaj ib pab pawg neeg txawj ntse thiab cov kws tshaj lij uas paub zoo txog cov cuab yeej technology tshiab thiab cov qauv kev lag luam. Peb pab neeg mob siab rau kom ntseeg tau tias peb cov neeg siv khoom tau txais kev pabcuam zoo tshaj plaws thiab kev txhawb nqa tau.

05/

Cov nqi sib tw
Peb muab peb cov khoom ntawm tus nqi sib tw, ua rau lawv pheej yig rau peb cov neeg siv khoom. Peb ntseeg tias cov khoom lag luam zoo yuav tsum tsis txhob tuaj ntawm tus nqi, thiab peb siv zog ua kom peb cov khoom siv tau rau txhua tus.

06/

Kev paub nplua nuj
Muaj lub koob npe nrov ntev hauv kev lag luam, uas ua rau nws sawv tawm ntawm nws cov neeg sib tw. Nrog rau ntau xyoo ntawm kev paub, lawv tau tsim cov txuj ci tsim nyog kom tau raws li lawv cov neeg siv khoom xav tau.

Dab tsi yog cov tshuaj tiv thaiv ntawm sulfuric acid

Cov tshuaj tiv thaiv ntawm sulfuric acid thiab dej (H₂O)

Cov tshuaj tiv thaiv ntawm sulfuric acid nrog dej ua rau cov txheej txheem exothermic. Raws li cov tshuaj sib xyaw ua ke, piv txwv li, sulfuric trioxide tsim cov tshuaj tiv thaiv nrog dej (H2O), cov cua kub ntau tawm los ntawm nws qhov raug thiab yog li txawm tias boils lub sijhawm. Thaum koj siv tshuaj lom neeg sim, tib txoj hauv kev los xyuas kom muaj kev nyab xeeb yog ntxiv sulfuric acid hauv dej es tsis txhob siv lwm txoj kev lossis cov txheej txheem.
Lub cev qhuav dej sulfuric tshuaj thawb dej los ntawm ntau lub tebchaw hauv cov tshuaj tiv thaiv thiab tom qab ntawd siv cov tshuaj ua kom qhuav. Txawm li cas los xij, qhov kub ntawm cov tshuaj tiv thaiv no yog nyob ntawm qib concentration, uas txawm tias txuas mus rau 98% ntawm qhov loj.
Qee lub sij hawm, cov dej npau npau vim yog cov sulfur trioxide ntau dua hauv oleum (ib qho tshuaj SO3).

Cov tshuaj tiv thaiv ntawm sulfuric acid nrog qab zib

Cov tshuaj tiv thaiv ntawm sulfuric acid thiab qab zib tshuaj sib raug zoo ntawm sulfuric thiab dej qhia tau hais tias los ntawm kev ntxiv qab zib tebchaw, piv txwv li, carbohydrate, nyob rau hauv lub classic xyaum ua tej yam. Cov tshuaj tiv thaiv ntawm sulfuric acids nyiam detach dej los ntawm cov khoom thiab yog li avail los rhuav tshem cov molecules hauv cov txheej txheem. Txawm li cas los xij, ua raws li cov kauj ruam no ua tib zoo-
1: Muab cov piam thaj tso rau hauv ib lub tais, ntxiv dej tee, thiab sib tov.
2: Ntxiv sulfuric acid rau qhov sib tov.
Tom qab ob peb feeb, koj yuav pom cov tshuaj tiv thaiv muaj zog uas ua rau tsim cov pa roj carbon monoxide, carbon dioxide, thiab sulfur dioxide ib txhij. Tam sim no, cov tshuaj tiv thaiv ntawm sulfuric acid nrog qab zib tau vam meej, thiab koj tuaj yeem nco ntsoov qhov kev sim no rau yav tom ntej.

Cov tshuaj tiv thaiv sulfuric acid nrog zinc

Cov tshuaj tiv thaiv ntawm sulfuric acid thiab zinc yog dav ntawm tag nrho lwm yam kev sim. Feem ntau, cov tshuaj tiv thaiv yog dav kho nyob rau hauv lub chaw soj nstuam kom tau hydrogen gas nyob rau hauv ib tug txheej txheem. Ntxiv rau qhov ntawd, thaum zinc granules ntxiv nyob rau hauv diluted sulfuric acid, nws dissolves tag nrho cov khoom hlau nrog ib tug tso tawm ntawm hydrogen roj ntawm tus txheej txheem. Cov mis uas tau los ntawm cov tshuaj tiv thaiv yog
Zn + H₂SO4 → ZnSO4 + H₂
Tom qab ntawd, Diluted sulfuric acid tsim cov tshuaj tiv thaiv nrog hlau uas reacts hauv kev ua ntawm hydrogen gases. Cov formula ces yog –
М + H₂SO4 (diluted) → ntsev + H₂↑

Cov tshuaj tiv thaiv sulfuric acid nrog barium chloride

Barium yog ntsev ua los ntawm chloride anion thiab barium cation. Yog li, cov tshuaj tiv thaiv ntawm sulfuric acid thiab ntsev tsim barium ions. Thaum lub sij hawm cov tshuaj tiv thaiv, ib qho anion qhia nyob rau hauv tus txheej txheem, uas ua rau lub tsim ntawm lub tshiab compound. Cov sulfuric acid ua raws li Lewis acid, uas tsim cov xim dawb hauv kev sim. Hauv qab no yog cov qauv uas tau txais tom qab ua tiav qhov kev sim, feem ntau siv hauv gravimetry.
H₂SO4 + BaCl₂ → BaSO4 + 2HCl
ZnSO4 + BaCl₂ → BaSO4 + ZnCl₂
Hauv kev sim, sulfuric acid yog cov tshuaj muaj zog tshaj plaws uas muaj peev xwm hloov tau cov hlau los ntawm ntau lub tebchaw thiab ntsev.

Vim li cas Sulfuric Acid Ib txwm nyob hauv 98% Concentration?

Sulfuric acid feem ntau yog muag hauv 98% concentration vim tias nws yog cov kua qaub uas muaj zog heev thiab tuaj yeem ua rau muaj kev phom sij ntau dua. Ntawm 98%, nws tseem muaj cov acidity siab, tab sis nws tsis tshua muaj peev xwm ua rau muaj kev phom sij yog tias ua haujlwm tsis raug. Tsis tas li ntawd, sulfuric acid yog qhov kua tuab, yog li nws yuav nyuaj thiab tsim nqi thauj khoom thiab khaws cia lub siab dua. Nws kuj yog ib qho kev lag luam tshuaj thiab siv ntau yam kev siv, yog li qhov qis qis dua yog ntau yam thiab tuaj yeem siv rau ntau qhov xwm txheej.

Sulfuric Acid Formula

Cov mis mos sulfuric acid molecular yog H2SO4. Nws muaj ib lub atom ntawm leej faj, plaub oxygen atoms txuas rau sulfur atom thiab ob hydrogen atoms txuas nrog ob lub atoms oxygen. Ob lub pa oxygen txuas mus rau cov sulfur los ntawm ob daim ntawv cog lus, thiab ob pawg hydroxyl txuas los ntawm ib daim ntawv cog lus. Nws yog oxoacid ntawm sulfur. Raws li VSEPR Txoj Kev Xav, Tus qauv yog npaj rau hauv txoj hauv kev uas muaj qhov tsawg kawg nkaus ntawm kev sib tw ntawm ib leeg khub thiab cov khub sib koom ua ke. Nws qhov hnyav molecular yog 98.079 g / mol. Sulfuric acid ntom yog 1.83g / cm3. Nws cov ntsiab lus kub yog 337oC, thiab nws cov ntsiab lus melting yog 10oC.

Sulfuric Acid - Kev tsim cov txheej txheem ntawm Sulfuric Acid

Sulfuric acid yog cov khoom lag luam loj tshaj plaws hauv ntiaj teb (200 lab tons hauv ib xyoos). Concentrated sulfuric acid (93-98 %) yog siv nyob rau hauv kev tsim cov chiv, explosives, dyes, thiab roj av.

Cov khoom pib rau kev tsim cov sulfuric acid yog huv si, qhuav sulfur dioxide (SO2) roj. Qhov no tuaj yeem tau los ntawm kev hlawv cov sulfur, los ntawm metallurgical off-gases los yog decomposing siv sulfuric acid.
Ntau xyoo dhau los cov txheej txheem kev sib cuag tau siv los tsim cov tshuaj sulfuric acid, hloov cov txheej txheem "Lead Chamber" cov txheej txheem rov qab mus rau xyoo pua 18th.

Nyob rau hauv txoj kev sib cuag SO2 yog oxidized rau sulfur trioxide (SO3) ntawm qhov kub thiab txias (kwv yees li 450 degree) nyob rau hauv lub xub ntiag ntawm ib tug vanadium catalyst. SO3 ces yog yaj nyob rau hauv concentrated sulfuric acid tsim fuming sulfuric acid (oleum). Qhov no tuaj yeem ua rau muaj kev nyab xeeb nrog dej los tsim cov tshuaj sulfuric acid.

Cov kev hloov loj tau ua nyob rau hauv cov txheej txheem thiab cov nroj tsuag tsim kom ua kom lub zog rov qab zoo tshaj plaws thiab tom qab ntawd siv cov cua sov no los ua kom muaj cua sov siab thiab / lossis hluav taws xob. Cov txheej txheem qub "sib nqus nqus" tau hloov pauv los ntawm "ob chav nqus" txheej txheem uas ua rau cov kua qaub nce ntxiv thiab txo cov emissions.

Sulfuric Acid thiab Oleum Concentration Control

Sulfuric acid thiab oleum yog siv rau ntau lub hom phiaj, piv txwv li rau zus tau tej cov chiv, explosives, dyes, thiab petroleum khoom. Sulfuric acid tuaj yeem muag hauv daim ntawv ntawm ntau yam kev daws teeb meem ntawm H2SO4 hauv dej lossis sulfur trioxide (SO3) hauv H2SO4 uas yog hu ua fuming sulfuric acid lossis oleum.

Sulfuric acid thiab oleum yog tsim los ntawm cov txheej txheem kev sib cuag los ntawm leej faj uas muaj cov pa roj los ntawm kev hlawv cov sulfur, acid regeneration, lossis metallurgical kev ua haujlwm. Cov txheej txheem muaj cov catalytic oxidation ntawm sulfur dioxide (SO2) rau SO3, thiab hydration ntawm SO3 rau H2SO4 los ntawm kev nqus nyob rau hauv concentrated acid. Muaj cov txheej txheem kev sib cuag ib zaug lossis ob zaug ntawm kev sib cuag cov nroj tsuag.

Nyob rau hauv Cov Txheej Txheem Kev Sib Txuas Ob (tseem hu ua DCDA, ob chav sib cuag ob chav nqus), cov SO2 qhuav uas muaj roj yog pub rau hauv lub converter. Tom qab ntawd, cov pa roj raug tshem tawm los ntawm lub txaj thib peb catalytic, txias thiab dhau los ntawm thawj absorber qhov twg SO3 yog absorbed nyob rau hauv concentrated sulfuric acid (kwv yees li 98%). Cov roj uas tseem tshuav (feem ntau yog SO2) raug xa rov qab mus rau lub txaj thib plaub ntawm lub converter.

Tom qab lub converter lub gases txuas mus rau qhov kawg absorber qhov twg ib zaug dua SO3 yog absorbed nyob rau hauv concentrated acid. Cov khoom kawg yog oleum uas khaws cia rau hauv oleum dilution tank thiab tuaj yeem diluted nrog dej kom tau txais qhov xav tau concentration. Cov concentration ntawm cov kua feem ntau yog khaws cia ntawm 98% kom tsis txhob muaj kua qaub los ntawm cov kua.

Cia Tank Cov Lus Qhia rau Sulfuric Acid

Antioxidant System. Thaum khaws cia sulfuric acid, nws yog ib qho tseem ceeb rau kev txheeb xyuas qhov kev ntsuas kev ntxhov siab thiab nkag siab txog cov kev ntsuas tshwj xeeb kom paub tseeb tias cov resins siv nyob rau hauv lub tank cia muab cov npoo ntawm kev nyab xeeb. Poly Processing's tiam tom ntej LOSSIS-1000™ system khi rau XLPE nrog cov tshuaj tiv thaiv kab mob sab hauv, txo qis oxidation, txo qhov ua yuam kev thiab ua kom lub neej ntev.

Hla-txuas polyethylene tanks. Nrog lawv cov kev ua haujlwm ruaj khov, cov kab txuas txuas txuas nrog polyethylene tuaj yeem tuav cov tshuaj hnyav hnyav. Qhov Kev Ntsuas Ntsuas Ntsuas Ntawm 2.2 spg. ua kom lub tank nruj thiab muab cov neeg siv kawg ua kom muaj kev nyab xeeb.

High-density cross-linked polyethylene (XLPE). XLPE molecular bonding thiab tuab tank phab ntsa yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv qab thib peb ntawm lub tank, qhov twg siab load yog concentrated.

Optimized zus tau tej cov High Purity Sulfuric Acid ntawm kev sib cuag

Sulfuric acid (H2SO4) yog qhov tseem ceeb heev rau kev lag luam tshuaj thiab tib neeg. Kev siv Aspen Plus kev ua qauv, simulation, thiab kev ua kom zoo ntawm cov txheej txheem sib cuag tau ua rau kev tsim cov qib sulfuric acid. Qhov tseem ceeb, cov kev tshawb fawb tshawb pom qhia txog qhov rhiab heev ntawm cov dej ntws mus rau qhov ua kom tiav ntawm H2SO4 ntau lawm. Los ntawm cov txheej txheem no, muaj peev xwm tsim tau ib puag ncig 8 tons hauv ib hnub tau ua tiav, nrog rau qib purity ntawm 98.9%. Qhov kev ua tiav no ua rau muaj txiaj ntsig zoo rau kev ua kom tau raws li qhov xav tau ntawm sulfuric acid hauv ntau qhov kev lag luam. Tsis tas li ntawd, tshawb nrhiav lwm txoj hauv kev, xws li kev siv cov tshuaj sulfur, muaj peev xwm ua kom zoo dua H2SO4 ntau lawm. Cov txiaj ntsig ntawm kev txhim kho H2SO4 ntau lawm txuas ntxiv mus rau kev lag luam tshuaj. Sulfuric acid pom cov ntawv thov hauv kev ua liaj ua teb, roj av refining, tshuaj, thiab ua hlau. Txhim kho cov txheej txheem tsim khoom kom ntseeg tau tias muaj kev ntseeg siab rau cov haujlwm no. Hauv cov ntsiab lus, sulfuric acid yog qhov tseem ceeb rau kev lag luam tshuaj lom neeg thiab tib neeg loj. Aspen Plus kev ua qauv thiab kev ua kom zoo tshaj plaws tau ua tiav kev tsim cov qib siab sulfuric acid, ua rau muaj peev xwm thiab purity. Kev tshawb nrhiav lwm txoj hauv kev ntxiv txhim kho kev tsim khoom. Cov kev nce qib no muaj qhov cuam tshuam dav dav, muaj txiaj ntsig zoo rau ntau qhov kev lag luam thiab ua kom muaj kev vam meej hauv cov haujlwm uas vam khom rau sulfuric acid.

Chemical Properties of Sulfuric Acid

Kev tsis sib haum xeeb
H₂SO₄, thaum rhuab, nkag mus rau hauv chav (H₂O) thiab SO₃.
H₂SO₄ ⇌ H₂O + SO₃

Acid xwm
Cov kua dej aqueous ntawm cov kua qaub ua rau muaj zog dibasic acid vim nws ionises hauv ob theem thiab muab ob H⁺ ions. Piv txwv li,
H₂SO₄⇌ 2H⁺ + SO₄⁻

Oxidising Agent
Kub concentrated sulfuric acid ua lub zog oxidizing tus neeg sawv cev. Nws yog vim li cas H₂SO₄ tuaj yeem plam cov pa oxygen yooj yim heev. Thaum H₂SO₄ oxidises ib yam khoom, nws raug txo kom SO₂. Cov khoom oxidising no tsis tuaj yeem ua nrog diluting H₂SO₄.
H₂SO₄ → H₂O + SO₂ + [O]

Dehydrating Agent
Concentrated H₂SO₄ dissolves nyob rau hauv dej thiab tsim sulfuric acid hydrates, H₂SO₄.nH₂O. Vim yog cov cuab yeej no, concentrated H₂SO₄ qhia lub cev qhuav dej. Piv txwv li,
(COOH)₂ + H₂SO₄ → CO + CO₂ + [H₂SO₄.H₂O]

Cov nag lossis daus
Thaum cov tshuaj aqueous ntawm calcium, barium, txhuas, thiab lwm yam ntsev raug kho nrog dilute H₂SO₄, dawb precipitates ntawm lawv cov hlau sulphates raug tsim. Piv txwv li,
BaCl₂ + H₂SO₄ → BaSO₄ ↓ + 2HCl

Electrolysis
Thaum 50% H₂SO₄ yog electrolysed, peroxydisulfuric acid (H₂S₂O₈) tau txais ntawm anode hauv cov tshuaj.

Action On Salts
H₂SO₄ yog ib tug muaj zog acid uas decomposes cov ntsev ntau volatile acids xws li carbonates, sulfites, nitrates, chlorides, thiab lwm yam. Qhov ntau volatile acid yog liberated nyob rau hauv txhua rooj plaub. Piv txwv li,
2NaCl + H₂SO₄ → Na₂SO₄ + 2HCl

Yuav Siv Sulfuric Acid Regenerated li cas

Cov kua qaub pub nkag rau hauv SAR cog yog concentrated kom tshem tawm cov dej. Qhov no ua tau zoo txo qhov ntim tag nrho ntawm cov dej tawm ntawm cov pa roj ua ntej nws nkag mus rau hauv qhov cub hluav taws xob rov ua dua rau thermal tawg.

Hauv qhov cub, cov kua qaub yog atomized los ntawm kev sib xyaw nrog cov cua compressed thiab rhuab mus rau kwv yees li 1000 - 1200 degree . Ntawm cov kub no, H2SO4 decomposes rau hauv sulfur dioxide gas (SO2) thiab chav.

Lub SO2 gas kwj nkag mus rau hauv cov txheej txheem ntxuav / purification kom tshem tawm impurities xws li organic teeb meem, hlau thiab tshauv. Tom qab ntawd cov roj tau qhuav nyob rau hauv ib lub txaj txaj los ntawm kev sib cuag nrog tsis muaj zog sulfuric acid (93 - 96% H2SO4). Tom qab tawm hauv lub pej thuam, huv si, qhuav SO2 nkag mus rau hauv lub nkoj sib cuag qhov chaw uas nws reacts nrog cov catalyst los tsim sulfur trioxide (SO3).

SO3 yog yaj nyob rau hauv oleum (piv txwv li, fuming sulfuric acid) thiab ntxiv rau cov dej kom tsim tau tag nrho-lub zog, zoo, oleum-dawb sulfuric acid. Nyob ntawm cov qib uas xav tau, SAR tsob nroj muaj peev xwm tsim tau sulfuric acid nyob rau hauv ntau ntawm 93% mus rau 99.2%.

Kev thov sulfuric acid

Sulfuric acid yog siv los tsim cov chiv, tshwj xeeb tshaj yog superphosphate, ammonium phosphate thiab ammonium sulfate.

Sulfuric acid yog siv rau hauv kev lag luam chemical los tsim cov tshuaj detergents, hluavtaws resins, dyes, tshuaj, roj av catalysts, tshuaj tua kab thiab antifreeze, nrog rau ntau yam txheej txheem xws li roj zoo acidification, aluminium txo, papermaking sizing, thiab dej kho.

Sulfuric acid yog siv nyob rau hauv cov xim, nrog rau cov xim, enamels, luam ntawv inks, coated fabrics thiab ntawv.

Sulfuric acid kuj tseem siv rau hauv kev tsim cov khoom tawg, cellophane, acetate thiab viscose textiles, lubricants, non-ferrous hlau thiab roj teeb.

Peb lub Hoobkas

Shanghai Yuze Chemical technology co., ltd, pom nyob rau hauv 2017, uas yog headquartered nyob rau hauv Pudong, Shanghai, Tuam Tshoj. Peb yog ib tus neeg muag khoom zoo tshaj plaws tshwj xeeb hauv cov khoom nruab nrab thiab cov tshuaj zoo thiab lwm yam., Peb suav nrog cov khoom zoo thiab kev ntseeg tau raws li lub neej ntawm kev lag luam. Pab pawg tswj hwm muaj ntau tshaj 10 xyoo ntawm kev paub hauv kev lag luam thiab ua tib zoo saib xyuas kev lag luam zoo. Nrog rau kev nkag siab zoo ntawm kev ua lag luam tsis hnov tsw, peb muab peb cov neeg siv khoom cov kev pabcuam tshaj lij thiab cov khoom lag luam.

Cov ntawv pov thawj

FAQ

Q: Dab tsi yog sulfuric acid siv rau?

A: Nqe lus piav qhia. Sulfuric acid yog lub ntiaj teb loj tshaj plaws ntim khoom siv tshuaj. Kev siv tseem ceeb yog hauv kev tsim cov phosphate chiv. Nws yog siv los tsim cov khoom tawg, lwm cov kua qaub, dyes, kua nplaum, ntoo preservatives, thiab roj teeb tsheb.

Q: Yuav ua li cas txheeb xyuas sulfuric acid?

A: Sulfuric acid yog cov kua tsis muaj xim oily. Nws yog soluble hauv dej nrog tso tawm ntawm tshav kub. ...
Sulfuric acid, siv zoo li cov kua roj dub. Corrosive rau hlau thiab ntaub so ntswg. ...
Sulfuric acid yog sulfur oxoacid uas muaj ob pawg oxo thiab ob pawg hydroxy koom nrog covalently rau lub hauv paus sulfur atom.

Q: Lub luag haujlwm ntawm sulfuric acid yog dab tsi?

A: Sulfuric acid yog acidic heev. Yog li ntawd, nws yog siv los ntxuav cov hlau, tshem tawm cov impurities los ntawm cov roj, kev tsim cov tshuaj - nitric acid, hydrochloric acid, synthesis ntawm dye, tshuaj, detergents, explosives, thiab lwm yam.

Q: Dab tsi yog sulfuric acid formula?

A: Sulfuric acid (American spelling thiab nyiam IUPAC lub npe) los yog sulfuric acid (Commonwealth spelling), paub nyob rau hauv ancient sij hawm li roj ntawm vitriol, yog ib tug mineral acid uas muaj cov ntsiab lus sulfur, oxygen, thiab hydrogen, nrog rau molecular mis H2SO4.

Q: Lub hauv paus ntsiab lus ntawm sulfuric acid yog dab tsi?

A: Lub hauv paus ntsiab lus tseem ceeb tom qab cov txheej txheem yog tias cov moist SO2 (sulphur dioxide) nyob rau hauv muaj nitrogenous oxides (active catalyst) yog oxidized rau sulfur trioxide nrog cov pa oxygen tam sim no hauv huab cua. Sulfur trioxide yog tsim los rau cov dej los tsim sulfuric acid.

Q: Lub npe tag nrho ntawm sulfuric acid yog dab tsi?

A: Lub npe tshuaj ntawm H 2 SO 4 yog sulfuric acid. Lwm lub npe rau sulfuric acid suav nrog Mattling acid thiab Roj ntawm Vitriol. Nws yog corrosive thiab muaj zog acidic nyiam. Nws ua haujlwm raws li oxidizing thiab dehydrating tus neeg sawv cev ntawm ntau dua.

Q: Dab tsi yog sulfuric acid piv txwv?

A: Thawj daim ntawv thov ntawm sulfuric acid yog nyob rau hauv chiv, piv txwv li, txiv qaub superphosphate thiab ammonium sulfate. Nws yog feem ntau siv hauv kev ua tshuaj, xws li hauv kev tsim cov hydrochloric acid, nitric acid, sulfate ntsev, hluavtaws detergents, dyes thiab pigments, explosives, thiab tshuaj.

Q: Puas yog sulfuric acid organic lossis inorganic?

A: Sulfuric acid (H2SO4) (lub npe keeb kwm roj ntawm vitriol) yog ib yam tshuaj inorganic uas yog ib qho corrosive muaj zog ntxhia kua qaub uas yog pungent-ethereal, tsis muaj xim rau me ntsis daj viscous kua uas yog soluble hauv dej ntawm tag nrho cov concentrations.

Q: Vim li cas sulfuric acid tsuas yog?

A: Nws yooj yim dua thiab muaj kev nyab xeeb dua los siv Sulfuric acid thiab tseem muaj zog ntau dua li lwm cov kua qaub. Txawm hais tias muaj feem cuam tshuam tsis zoo, cov tshuaj tiv thaiv no tsis tshua muaj.

Q: Puas yog sulfuric acid flammable?

A: Sulfuric Acid tsis yog combustible, tab sis nws yog ib tug STRONG OXIDIZER uas txhim khu kev combustion ntawm lwm yam tshuaj. Kev tua hluav taws siv tus neeg sawv cev tsim nyog rau hom hluav taws kub nyob ib puag ncig. Sulfuric Acid nws tus kheej tsis hlawv. Tsis txhob siv dej ncaj qha rau ntawm sulfuric acid.

Q: Dab tsi yog pH xim ntawm sulfuric acid?

A: Cov kua qaub muaj zog xws li hydrochloric, sulfuric thiab nitric yog ionised tag nrho thiab muab pH 1 los yog tsawg dua thiab xim liab nrog universal qhia lossis litmus ntawv.

Q: Puas yog sulfuric acid lossis HCl?

A: Puas yog ACID zoo dua? Muaj qhov pom tseeb zoo rau HCl. Nws yog cov kua qaub uas muaj zog dua (virtually tag nrho cov "H's" tuaj yeem siv qhov twg tsuas yog thawj H hauv H2SO4 tau yooj yim). HCl tuaj yeem siv tau ntawm qhov siab dua H2SO4 vim tias muaj tsawg dua ntawm cov ntsev precipitating tawm hauv cov kua qaub.

Q: Yuav ua li cas muaj zog sulfuric acid?

A: Piv txwv li, hydrochloric acid tuaj nyob rau ntawm pH 1.6, nitric acid ntawm 1.08 thiab ntshiab sulfuric acid ntawm ib tug whopping pH -12. Uas ua rau sulfuric acid muaj zog tshaj 'ib txwm' acid koj yuav pom.

Q: Puas yog sulfuric acid ntshiab?

A: Nws kuj yog siv rau hauv cov roj teeb thiab hauv ntau yam kev daws teeb meem. Sulfuric acid yog tsim los ntawm dissolving sulfur trioxide hauv dej. Concentrated sulfuric acid yog 98.3% ntshiab, uas yog ruaj khov dua 100% sulfuric acid nyob rau hauv cia vim SO3 poob.

Q: Yuav ua li cas ua sulfuric acid?

A: Yuav ua li cas sulfuric acid tsim? Sulfuric acid yog tsim los ntawm sulfur. Nyob rau hauv lub xub ntiag ntawm huab cua, sulfur dioxide yog thawj zaug tau los ntawm hlawv cov molten sulfur. Nyob rau hauv lub xub ntiag ntawm ib tug catalyst rau vanadium pentoxide, sulfur dioxide ces hloov mus rau sulfur trioxide.

Q: Qhov twg yog sulfuric acid pom?

A: Lub xub ntiag ntawm sulfuric acid yog cuam tshuam nrog lub ntuj muaj peev xwm ntawm cov kab mob uas tuaj yeem pom hauv lossis cais los ntawm cov kua qaub mine dej lossis los ntawm cov sulfur thiab hlau sulfide mines nrog rau cov hluav taws kub.

Q: Puas yog sulfuric acid soluble hauv dej?

A: Sulfuric acid yog heev reactive thiab corrosive. Nws yog soluble hauv dej thiab ethyl cawv. Nws muaj zog reactivity yuav ignite cov khoom organic (lub teeb ntawv, los yog lwm yam combustible cov ntaub ntawv) yog muab sib xyaw ua ke.

Q: Yuav ua li cas npaj sulfuric acid?

A: 1 Mole ntawm sulfur trioxide reacts nrog 1 mole ntawm dej los tsim ib mole ntawm sulfuric acid. Qhov no yog txoj kev sib cuag, uas yog txoj kev lag luam. Nyob rau hauv cov tshuaj tiv thaiv no, vanadium oxide yog siv los ua catalyst.

Q: Yuav ua li cas kuaj sulfuric acid purity?

A: Npaj cov tshuaj N/10 H2SO4. Titrate nrog N / 10 NaOH. Xam qhov feem pua ntawm purity los ntawm kev siv qhov sib npaug no. % Purity=Volume of NaOH siv x Normality of NaOH x Eq.

Q: Peb puas tuaj yeem kuaj sulfuric acid?

A: Ib qho piv txwv hnyav ntawm cov kua qaub yog diluted hauv dej thiab titrated nrog cov txheej txheem sodium hydroxide tov, siv phenolphthalein ua qhov taw qhia. Baumé lub ntiajteb txawj nqus kev txiav txim: Lub iav hydrometer yog siv los txiav txim Baumé lub ntiajteb txawj nqus ntawm concentrated sulfuric acid. Baumé lub ntiajteb txawj nqus yog txiav txim siab ntawm 15.5 degree.

Cim npe nrov: sulfuric acid cas 7664-93-9, Tuam Tshoj sulfuric acid cas 7664-93-9 manufacturers, lwm tus neeg, Hoobkas