Qhov tseem ceeb cia thiab thauj Specs rau Sodium Hydrosulfide

Kev nyab xeeb cia thiab kev thauj mus los specifications ntawm Sodium Hydrosulfide nyob rau hauv lub teb ntawm chemical ntau lawm raw khoom

Abstract

Sodium hydrosulfide, raws li cov khoom siv tshuaj lom neeg ntau lawm, muaj cov alkalinity muaj zog thiab txo cov khoom, yuav tsum tau ua raws li cov cai tswj kev nyab xeeb thaum khaws cia thiab kev thauj mus los. Tsab ntawv xov xwm no yuav muab cov ncauj lus kom ntxaws txog lub cev thiab tshuaj lom neeg ntawm sodium hydrosulfide, kev ntsuam xyuas ntawm nws cov kev phom sij, kev pabcuam thawj zaug, kev ntsuas hluav taws kub, cov lus teb thaum muaj xwm txheej ceev rau cov dej xau, kev ua haujlwm thiab kev khaws cia, kev tswj hwm / kev tiv thaiv tus kheej, cov yam ntxwv ntawm lub cev, kev ruaj ntseg thiab kev ua haujlwm, cov ntaub ntawv tshuaj lom neeg, cov ntaub ntawv ecological, cov ntaub ntawv pov tseg, kev tswj xyuas kev nyab xeeb thiab kev thauj mus los.

I. Physical and Chemical Properties

Sodium hydrosulfide yog dawb crystalline hmoov nrog muaj zog alkalinity thiab txo cov khoom. Nws cov mis molecular yog NaHS, thiab nws qhov hnyav molecular yog 56.06. Lub melting point yog 100 ° C, thiab lub boiling point yog 140 ° C. Sodium hydrosulfide yog yooj yim soluble hauv dej, ua sodium hydroxide thiab hydrogen sulfide.

II. Txheej txheem cej luam ntawm Hazards

Sodium hydrosulfide ua rau khaus heev rau lub qhov muag, tawv nqaij, thiab mucous daim nyias nyias. Kev nqus ntawm nws cov vapors tuaj yeem ua rau cov tsos mob ua pa ua pa. Kev noj haus tuaj yeem ua rau mob plab hnyuv, mucosal yaig, los ntshav, thiab poob siab. Tsis tas li ntawd, sodium hydrosulfide reacts nrog cov kua qaub kom tso cov pa hluav taws xob hydrogen sulfide thiab reacts hnyav nrog oxidizers thiab acidic tshuaj.

III. Kev Pabcuam Ua Ntej

Nyob rau hauv rooj plaub ntawm kev sib cuag ntawm daim tawv nqaij, tshem tawm cov khaub ncaws tsis huv tam sim ntawd thiab yaug qhov chaw cuam tshuam nrog cov dej ntws txaus rau tsawg kawg 15 feeb. Txhawm rau tiv thaiv qhov muag, rub daim tawv muag tam sim ntawd thiab yaug kom huv si nrog dej txaus los yog ntsev kom tsawg li 15 feeb. Yog tias nqus tau, txav tus neeg mob mus rau qhov cua ntshiab thiab xyuas kom cov pa ntshiab huv. Thaum noj, yaug qhov ncauj, muab mis nyuj lossis qe dawb, thiab nrhiav kev kho mob tam sim ntawd.

IV. Kev ntsuas hluav taws kub

Sodium hydrosulfide yuav tsum tau muab cia rau hauv ib qho chaw txias, zoo-ventilated warehouse, deb ntawm qhov chaw ntawm hluav taws kub thiab cua sov. Nws yuav tsum tau muab cais los ntawm oxidizers thiab acids, thiab kev sib tov yog nruj me ntsis txwv tsis pub. Txhim kho qhov chaw cia khoom nrog cov khoom tsim nyog thiab ntau ntawm cov khoom siv tua hluav taws thiab cov khoom xau thaum muaj xwm ceev. Lub chaw cia khoom yuav tsum muaj cov ntaub ntawv tsim nyog kom muaj cov xau.

V. Teb xwm txheej ceev rau cov dej ntws

Cais qhov chaw paug paug thiab txwv kev nkag mus. Cov neeg muaj xwm txheej ceev tau qhia kom hnav lub ntsej muag plua plav (tag nrho lub ntsej muag) thiab cov khaub ncaws tiv thaiv acid-alkali. Tiv tauj nrog cov ntim khoom tawg thiab cov khoom xau raug txwv kom txog thaum hnav khaub ncaws tiv thaiv tsim nyog. Txiav tawm qhov chaw xau yog tias ua tau. Rau cov xau me me: zam kev tsim cov hmoov av thiab siv lub duav huv los khaws cov khoom hauv lub thawv qhuav, huv, npog. Rau cov dej xau loj: npog nrog cov ntawv yas lossis canvas. Tom qab ntawd sau thiab rov ua dua lossis thauj mus rau qhov chaw pov tseg pov tseg rau kev kho mob.

VI. Kev ua haujlwm tuav thiab khaws cia

Kev Ceeb Toom Txog Kev Ua Haujlwm: Ua haujlwm hauv qhov chaw kaw thiab muab cov pa tso pa hauv zos txaus. Tiv thaiv kom tsis txhob muaj plua plav tawm mus rau hauv chav ua haujlwm huab cua. Cov neeg ua haujlwm yuav tsum tau txais kev cob qhia tshwj xeeb thiab ua raws li cov txheej txheem ua haujlwm. Nws raug nquahu kom cov neeg ua haujlwm hnav lub ntsej muag plua plav (tag nrho lub ntsej muag), roj hmab acid-alkali resistant khaub ncaws, thiab roj hmab acid-alkali resistant hnab looj tes. Khaws kom deb ntawm qhov chaw ntawm qhov hluav taws kub thiab cua sov; txwv tsis pub haus luam yeeb hauv chaw ua haujlwm. Siv cov tshuab ua pa tawm thiab cov khoom tawg. Tsis txhob muaj plua plav tsim thiab tiv nrog oxidizers thiab acids. Yuav tsum tau saib xyuas tshwj xeeb kom tsis txhob sib cuag nrog dej. Txhim kho thaj chaw uas tsim nyog rau hom thiab ntau npaum li cas ntawm cov khoom siv tua hluav taws thiab cov khoom xau thaum muaj xwm ceev. Cov thawv ntim khoob yuav khaws cov khoom seem uas tsis zoo.

Kev Tiv Thaiv Kev Tiv Thaiv: Khaws rau hauv qhov chaw txias, zoo-ventilated warehouse, kom deb ntawm qhov chaw ntawm hluav taws kub thiab cua sov. Tiv thaiv kom tsis txhob raug tshav ntuj ncaj qha. Khaws cais los ntawm oxidizers thiab acids, thiab kev sib xyaw yog txwv nruj heev. Txhim kho qhov chaw cia khoom nrog cov khoom tsim nyog thiab ntau npaum li cas ntawm cov khoom siv tua hluav taws. Lub chaw cia khoom yuav tsum muaj cov ntaub ntawv tsim nyog kom muaj cov xau.

VII. Kev Tiv Thaiv Tus Kheej / Kev Tiv Thaiv Tus Kheej

Kev txwv tsis pub ua haujlwm: Tuam Tshoj MAC (mg / m3): Tsis muaj tus qauv tsim. Yav dhau los Soviet Union MAC (mg / m3): Tsis muaj tus qauv tsim. TLVTN: Tsis muaj tus qauv tsim. TLVWN: Tsis muaj tus qauv tsim. Txoj kev saib xyuas: Engineering tswj: kaw kev ua haujlwm, muab cov pa hauv zos txaus. Kev tiv thaiv kab mob ua pa: Thaum qhov concentration hauv huab cua tshaj li tus qauv, yuav tsum hnav lub npog ntsej muag tus kheej-priming plua plav. Thaum cawm lossis khiav tawm thaum muaj xwm txheej ceev, yuav tsum hnav lub tshuab ua pa. Kev tiv thaiv qhov muag: Hnav cov tsom iav kev nyab xeeb tshuaj. Kev tiv thaiv lub cev: Hnav roj hmab acid thiab alkali resistant khaub ncaws. Kev tiv thaiv tes: Hnav cov hnab looj tes roj hmab acid thiab alkali resistant. Lwm yam kev tiv thaiv: txwv tsis pub haus luam yeeb, noj thiab haus hauv chaw ua haujlwm, thiab ntxuav tes ua ntej noj mov. Tom qab ua haujlwm, da dej thiab hloov khaub ncaws. Ua tib zoo saib xyuas tus cwj pwm zoo.

VIII. Physicochemical Properties

Cov tsos mob thiab cov khoom: Dawb mus rau xim tsis muaj xim crystalline hmoov los yog flaky crystals nrog tsis hnov ​​tsw ntawm hydrogen sulfide. Melting point (℃): ntau dua 100 txheeb ze ntom ntom (dej = 1): 1.79 Solubility: soluble hauv dej, soluble hauv methanol thiab lwm yam organic solvents. Kev siv tseem ceeb: siv los ua cov tshuaj analytical reagents, thiab lwm yam. Cov ntaub ntawv tsis sib xws: muaj zog oxidants, muaj zog acids. Cov xwm txheej kom tsis txhob sib cuag: huab cua ntub. Polymerization txaus ntshai: tsis muaj polymerization Decomposition khoom: hydrogen sulfide, sulfur oxides.

IX. Stability thiab Reactivity

Stability: Stable Polymerization phom sij: Tsis muaj polymerization Cov xwm txheej kom zam: Cov khoom siv kub tsis sib haum: Cov kua qaub muaj zog, muaj zog oxidizer Cov khoom puas tsuaj puas tsuaj: Hydrogen sulfide combustion (decomposition) cov khoom: Hydrogen sulfide, sulfur oxide toxicity classification Poisoning Acute toxicity Oral-rat LD50: 560rrbit500 mg/kgs I. Kev khaus khaus khaus khaus khaus 24 mg / 500 teev Cov khaus khaus khaus khaus khaus TCLo: 24ppm / 1400 teev Cov yam ntxwv txaus ntshai Reacts nrog cov kua qaub kom tso cov pa roj hydrogen sulfide. Nws tuaj yeem hnov ​​​​mob hnyav nrog oxidants ua rau combustion lossis tawg.