Sulfa woipa. Pakubwezeretsa, kupeza, katundu mankhwala

Okusayidi sulfure (woipa sulfure, woipa sulfure, sulfure woipa) - ndi mpweya colorless kukhala bwinobwino lakuthwa khalidwe fungo (fungo ofanana machesi ndi kuunikiridwa). Liquefied opanikizika firiji. Sulfa woipa ndi sungunuka m'madzi, potero kupanga asidi wosakhazikika sulfuric. Komanso, mankhwala uli kusungunuka mu chidulo sulfuric ndi Mowa. Ichi ndi chimodzi mwa zigawo zikuluzikulu za zikuchokera mpweya chiphala.

Monga anakonza woipa sulfure

Kukonzekera SO2 - sulfure woipa - mafakitale njira tichipeza mu moto ndi sulfure kapena Kukuwotcha wa sulfides (galasi zimagwiritsa ntchito).

4FeS2 (galasi) + 11O2 = 2Fe2O3 (chitsulo okusayidi) + 8SO2 (sulfure woipa).

Zinthu zasayansi, ndi woipa sulfure akhoza akamagwira zochita za zidulo hydrosulfites amphamvu ndi sulfites. Choncho chifukwa asidi sulfurous yomweyo linawola madzi ndi sulfure woipa. Mwachitsanzo:

Na2SO3 (sodium wochuluka sulfite) + H2SO4 (asidi sulfuric) = Na2SO4 (ndi sodium sulphate) + H2SO3 (asidi sulfurous).
H2SO3 (asidi sulfurous) = H2O (madzi) + SO2 (sulfure woipa).

Njira ya chitatu yopangira woipa sulfure poyera kuti moyikirapo sulfuric asidi ndi Kutentha pa zitsulo layamba. Mwachitsanzo: Cu (mkuwa) + 2H2SO4 (asidi sulfuric) = CuSO4 (mkuwa sulfate) + SO2 (sulfure woipa) + 2H2O (madzi).

Chemical katundu wa woipa sulfure

Dongosolo la woipa sulfure - SO3. Zinthu zimenezi zikukhudzana ndi oxides acidic.

1. woipa sulfure dissolves m'madzi, potero kupanga asidi sulphurous. M'mikhalidwe wabwinobwino, anachita izi kusintha.

SO2 (sulfure woipa) + H2O (madzi) = H2SO3 (asidi sulfurous).

2. alkalis sulfure woipa kupanga sulfite. Mwachitsanzo: 2NaOH (sodium hydroxide) + SO2 (sulfure woipa) = Na2SO3 (sodium wochuluka sulfite) + H2O (madzi).

3. Mankhwala sulfure mafuta zochitika mokwanira mkulu. Kwambiri kutchulidwa katundu kuchepetsa woipa sulfure. Mu maganizo mlingo wa ukuwonjezeka sulfure makutidwe ndi okosijeni. Mwachitsanzo: 1) SO2 (sulfure woipa) + Br2 (bromine) + 2H2O (madzi) = H2SO4 (asidi sulfuric) + 2HBr (bromide wa hydrogen); 2) 2SO2 (sulfure woipa) + O2 (mpweya) = 2SO3 (sulfite); 3) 5SO2 (sulfure woipa) + 2KMnO4 (potaziyamu permanganate) + 2H2O (madzi) = 2H2SO4 (asidi sulfuric) + 2MnSO4 (manganese sulphate) + K2SO4 (sulphate potaziyamu).

Yankho Last - chitsanzo cha ayankhe apamwamba kuti SO2 ndi SO3. Pepo discoloration amapezeka) yankho.

4. Kumbali ya kukhalapo kwa amphamvu kuchepetsa woipa sulfure akhoza kuonetsa katundu oxidizing. Mwachitsanzo, kuti wachotsa ku zitsulo makampani sulufule mpweya flue, ntchito reconstitution wa woipa sulfure ndi mpweya monoxide (NKHA): SO2 (sulfure woipa) + 2 Akorinto (mpweya monoxide) = 2CO2 (mpweya woipa) + S (sulfure).

Komanso katundu zobwera chifukwa cha okosijeni wa mankhwala ntchito kupeza fosfornovaristoy ksiloty: PH3 (phosphine) + SO2 (sulfure woipa) = H3PO2 (fosfornovaristaya acid) + S (sulfure).

Kodi ntchito woipa sulfure

Ndichachidziwikire kuti woipa sulfure ntchito kubala asidi sulfuric. Ndiponso ntchito monga usawonongeke (E-220) mu kupanga zakumwa zoziziritsa kukhosi (vinyo ndi zakumwa zina pafupifupi mtengo gulu). Chifukwa chuma cha gasi izi kupha zosiyanasiyana tizilombo, iwo fumigated malo ndi masamba sitolo. Komanso, sulfure woipa ntchito oyeretsa ubweya, silika, udzu (zipangizo zimene sangathe nsaluzi zinkangokhala ndi chlorine). Mu Laboratories wa woipa sulfure ntchito monga zosungunulira ndi kupeza mchere zosiyanasiyana asidi sulfurous.

zotsatira zokhudza thupi

Sulfa woipa ali wamphamvu katundu poizoni. Zizindikiro za poyizoni - chifuwa, chimfine, hoarseness, kukoma achilendo pa kamwa, ndi awakande amphamvu mu mmero. Inhalation wa woipa sulfure pa woipa mkulu ukapezeka movutikira Pomeza ndi kutsamwa, matenda kulankhula, kunyansidwa ndi kusanza angathe pachimake m'mapapo mwanga edema.

MPC wa woipa sulfure:
- m'nyumba - 10 mg / m³;
- pafupifupi pazipita ntchito mu mpweya - 0,05 mg / m³.

Kudziwa woipa sulfure anthu payekha, zomera ndi nyama zosiyana. Mwachitsanzo, pakati pa kugonjetsedwa kwambiri mitengo birch ndi thundu, ndi osachepera - spruce ndi paini.