Product Overview
Hydrogen sulfide CAS 7783-06-4 yog ib qho tsis muaj xim, muaj kuab lom heev, cov pa taws uas muaj ntxhiab tsw ntxhiab ntawm cov qe lwj ntawm qhov tsis tshua muaj siab, txawm tias qhov hnov tsw tsw yog sai heev ntawm cov qib siab dua, ua rau nws muaj kev ceeb toom tsis txaus ntseeg. Thaum lub npe hu ua cov pa phem uas muaj nyob rau hauv cov pa roj, roj av, thiab ntau yam kev lag luam, hydrogen sulfide nws tus kheej kuj yog ib qho tseem ceeb muaj tshuaj thiab reagent. Nws yog tsim thiab tswj nyob rau hauv kev tswj ib puag ncig rau cov kev siv tshwj xeeb hauv tshuaj synthesis, metallurgy, thiab analytical chemistry. Kev ceev faj heev thiab cov txheej txheem kev nyab xeeb tshwj xeeb yog qhov tseem ceeb rau kev ua haujlwm nrog hydrogen sulfide vim nws qhov mob toxicity thiab flammable.
Cov ntaub ntawv yooj yim
| CAS Nr. | 7783-06-4 |
| UN No. | UN1053 (Hydrogen sulfide) |
| Molecular Formula | H₂S |
| Hazard Classification | 2.3 (Toxic gas), 2.1 (Flammable gas) |
Cov yam ntxwv tseem ceeb & Parameters
| Purity | Muaj nyob rau hauv ntau qib, suav nrog qib kev kawm (piv txwv li, 99.5% min.) thiab siab - qib purity (piv txwv li, 99.9%+) rau kev siv tshwj xeeb. Cov impurities yuav suav nrog CO₂, hydrocarbons, thiab dej. |
| Lub cev lub xeev | Cov pa roj tsis muaj xim ntawm cov qauv txheej txheem. Nws tuaj yeem ua kua dej hauv qhov siab. |
| tsw | Cov yam ntxwv foul tsw ntawm cov qe rotten tsawg concentrations (< 1 ppm). Olfactory fatigue occurs rapidly, posing a significant inhalation hazard. |
| Boiling Point | -60.3 ° F (-76.5 ° F) |
| Qhov ntom | Hnyav tshaj huab cua (vapor ceev ~ 1.19). |
| Tseem Ceeb | Cov tshuaj lom heev (PEL 20 ppm, IDLH 100 ppm), flammable (LEL 4.3%, UEL 46%), thiab corrosive nyob rau hauv lub xub ntiag ntawm noo noo. |
Nta & Qhov Zoo
Muaj peev xwm txo tus neeg sawv cev
Hydrogen sulfide CAS 7783-06-4 yog ib tug muaj zog txo tus neeg sawv cev, pab tau nyob rau hauv ntau yam tshuaj txo cov tshuaj tiv thaiv thiab cov txheej txheem nag lossis daus hlau.
Qhov chaw ntawm Sulfide Ions
Nws yooj yim dissociates nyob rau hauv aqueous tov los muab sulfide ions (S²⁻), uas yog ib qho tseem ceeb rau precipitating hlau sulfides.
Tshuaj Precursor
Ua haujlwm ncaj qha ntawm leej faj rau kev tsim lwm cov sulfur- muaj cov tshuaj xws li cov tshuaj sulfur, sulfuric acid (ntawm cov txheej txheem Claus), thiab ntau yam inorganic sulfides.
Siab Reactivity
Nws reactivity ua rau nws haum rau tej yam, tswj tshuaj transformations.
Cov yam ntxwv ua haujlwm
Raws li cov pa roj, Hydrogen sulfide CAS 7783-06-4 feem ntau yog muab rau hauv lub tog raj kheej siab. Nws lub luag haujlwm tseem ceeb yog los ntawm nws lub zog txo qis thiab nws lub peev xwm los muab sulfide anions. Hauv cov kua dej, nws tsim cov kua qaub tsis muaj zog (hydrosulfuric acid). Nws reactivity tso cai rau nws los nag lossis daus ntawm cov hlau sulfides los ntawm kev daws. Hauv cov txheej txheem kev lag luam, nws feem ntau hnov mob nrog cov hlau sib txuas lossis ua haujlwm ua khoom noj. Vim nws qhov kev phom sij loj heev, kev tuav cov tshuab yuav tsum tau siv cov pa roj inert purging, nrhiav kom pom cov pa taws, thiab kev tswj xyuas engineering nruj.
Thawj daim ntawv thov teb
Chemical Manufacturing
Siv nyob rau hauv zus tau tej cov inorganic sulfides (xws li, sodium sulfide, sodium hydrosulfide), thioorganic tebchaw, thiab raws li ib tug txo tus neeg sawv cev nyob rau hauv tej organic syntheses.
Metallurgy & Analytical Chemistry
Ua hauj lwm nyob rau hauv zoo inorganic tsom xam (classic Group II cation precipitant) thiab nyob rau hauv ib co hlau refining los yog extraction txheej txheem.
Sulfur Production
Ib qho tseem ceeb feedstock nyob rau hauv cov txheej txheem Claus rau recovering elemental sulfur los ntawm acid gas ntws nyob rau hauv cov roj refineries thiab natural gas processing nroj tsuag.
Laboratory tshawb fawb
Siv los ua cov tshuaj reagent nyob rau hauv cov chaw tshawb fawb tswj kev kawm sulfur chemistry thiab catalysis.
Cov neeg siv khoom sib koom tes Case
Ib lub chaw tsim tshuaj tshwj xeeb uas tsim tau siab -purity hlau sulfide nanopowders rau cov khoom siv hluav taws xob tau ntsib cov teeb meem nrog qhov tsis sib xws ntawm qhov loj me thiab purity thaum siv aqueous sulfide ntsev. Lawv yuav tsum tau tswj tau ntau dua thiab ntshiab qhov chaw ntawm sulfide ions. Peb koom tes nrog lawv los tsim kom muaj kev nyab xeeb, kaw- lub voj kaw lus rau kev tswj hwm kev coj ua ntawm siab -purity (99.9%) hydrogen sulfide gas rau hauv lawv lub reactor. Peb cov kev daws teeb meem suav nrog kev cai -kev tsim hluav taws xob xa hluav taws xob nrog cov tswj hwm huab hwm coj, kev sib koom ua ke H₂S thiab cov ntsuas pa oxygen, thiab lub tshuab ntxhua khaub ncaws tshwj xeeb. Qhov tseeb, roj-theem xa tawm ntawm hydrogen sulfide tso cai rau kev tswj hwm zoo tshaj plaws ntawm nucleation thiab kev loj hlob kinetics. Qhov no ua rau cov hlau sulfide hais nrog 40% nqaim me me faib, ntau dua crystallinity, thiab txo qis cov pa paug. Cov khoom siv txhim khu kev qha thiab kev nyab xeeb tuav cov txheej txheem rau hydrogen sulfide tau ua rau cov neeg siv khoom tuaj yeem nce lawv cov khoom lag luam nrog cov khoom tsim tau zoo, ua kom muaj kev cog lus nrog cov khoom siv roj teeb loj.
FAQ
Cim npe nrov: Tuam Tshoj Hydrogen Sulfide CAS 7783-06-4 Chaw tsim tshuaj paus, lwm tus neeg, Hoobkas
