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mankhwala

2-3-Butanedithiol (CAS#4532-64-3)

Chemical Property:

Molecular Formula C4H10S2
Molar Misa 122.25
Kuchulukana 0.995 g/mL pa 25 °C (kuyatsa)
Melting Point -53.9°C (kuyerekeza)
Boling Point 86-87 °C/50 mmHg (kuyatsa)
Pophulikira 126°F
Nambala ya JECFA 539
Kuthamanga kwa Vapor 2.15mmHg pa 25°C
Kuchuluka kwa Vapor > 1 (vs mpweya)
Maonekedwe madzi (chiwerengero)
Specific Gravity 0.995
Mtundu Zopanda mtundu mpaka zowala zachikasu mpaka kuwala lalanje
pKa 9.93±0.10 (Zonenedweratu)
Refractive Index n20/D 1.5194(lit.)
Zakuthupi ndi Zamankhwala Malo otentha 86 ° C (50 torr)

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xn - Zowopsa
Zizindikiro Zowopsa R10 - Yoyaka
R22 - Zowopsa ngati zitamezedwa
R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S16 - Khalani kutali ndi magwero oyatsira.
S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
Ma ID a UN UN 3336 3/PG 3
WGK Germany 3
HS kodi 29309090
Kalasi Yowopsa 3.2
Packing Group III

 

Mawu Oyamba

2,3-Butanedithiol. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha 2,3-butanedithiol:

 

Ubwino:

- Maonekedwe: Madzi opanda mtundu

- Fungo: Fungo lamphamvu

- Zosungunuka: Zosungunuka m'madzi, ma alcohols ndi zosungunulira za ether

 

Gwiritsani ntchito:

- Kugwiritsa ntchito mafakitale: 2,3-butanedicaptan angagwiritsidwe ntchito ngati mphira accelerator ndi antioxidant. Ikhoza kusintha makina ndi kutentha kukana kwa mphira ndikutalikitsa moyo wautumiki wa zinthu za rabara.

 

Njira:

Kukonzekera kwa 2,3-butanedithiol kumatha kuchitika ndi imodzi mwa njira izi:

- Kukonzekera kwa mafakitale: butene ndi sulfure zimagwiritsidwa ntchito ngati zopangira ndipo zimakonzedwa ndi vulcanization reaction.

- Kukonzekera kwa labotale: Itha kukonzedwa ndi zomwe propadiene sulfate ndi sodium sulfite, kapena zomwe 2,3-dichlorobutane ndi sodium sulfide.

 

Zambiri Zachitetezo:

- 2,3-butanedithiol imakwiyitsa ndipo imatha kuyambitsa kuyabwa komanso kuyaka m'maso ndi khungu.

- Kukoka mpweya wambiri wa 2,3-butanedithiol kungayambitse chizungulire, nseru, kusanza ndi zizindikiro zina zosasangalatsa.

- Pewani kutulutsa mpweya ndi kukhudza khungu mukamagwira ntchito, ndipo valani zida zodzitetezera zoyenera monga magolovesi, magalasi, ndi zina zambiri mukamagwiritsa ntchito.

- Pewani kukhudzana ndi ma okosijeni ndi zinthu monga ma asidi amphamvu ndi ma alkalis kuti mupewe zoopsa.


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