paj_banner

khoom

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

Chemical Property:

Molecular Formula C4H10S2
Molar Mass 122.25 Nws
Qhov ntom 0.995 g / mL ntawm 25 ° C (lit.)
Melting Point -53.9 ° C (kwv yees)
Boling Point 86-87 ° C / 50 mmHg (lit.)
Flash Point 126 ° F
JECFA Number 539 ib
Vapor Siab 2.15mmHg ntawm 25 ° C
Vapor Density > 1 (vs huab cua)
Qhov tshwm sim kua (kwv yees)
Specific Gravity 0.995 ib
Xim Colorless to Light yellow to Light txiv kab ntxwv
pKa 9.93 ± 0.10 (Kev kwv yees)
Refractive Index n20/D 1.5194 (lit.)
Physical thiab Chemical Properties Kub taw tes 86 ° C (50 torr)

Product Detail

Khoom cim npe

Hazard Cov Cim Xn – Ua phem
Risk Codes R10 - Flammable
R22 - Ua phem yog tias nqos
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia S16 - Khaws kom deb ntawm qhov chaw hluav taws xob.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
UN IDs UN 3336 3/PG 3
WGK Germany 3
HS Code 29 3090 ,ib
Hazard Class 3.2
Packing Group III

 

Taw qhia

2,3-Butanedithiol. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2,3-butanedithiol:

 

Zoo:

- Cov tsos: cov kua tsis muaj xim

- ntxhiab tsw: Pungent tsw

- Soluble: Soluble hauv dej, cawv thiab ether solvents

 

Siv:

- Muaj kev siv: 2,3-butanedicaptan tuaj yeem siv los ua cov roj hmab accelerator thiab antioxidant. Nws tuaj yeem txhim kho cov khoom siv hluav taws xob thiab cov cua sov ua haujlwm ntawm cov roj hmab thiab ua kom lub neej ntev ntawm cov khoom siv roj hmab.

 

Txoj kev:

Kev npaj ntawm 2,3-butanedithiol tuaj yeem ua tau los ntawm ib qho ntawm cov hauv qab no:

- Kev npaj muaj: butene thiab sulfur feem ntau yog siv los ua raw khoom thiab npaj los ntawm vulcanization cov tshuaj tiv thaiv.

- Kev npaj hauv chav kuaj: Nws tuaj yeem npaj los ntawm cov tshuaj tiv thaiv ntawm propadiene sulfate thiab sodium sulfite, lossis los ntawm cov tshuaj tiv thaiv ntawm 2,3-dichlorobutane thiab sodium sulfide.

 

Cov ntaub ntawv kev nyab xeeb:

- 2,3-butanedithiol ua rau khaus thiab tuaj yeem ua rau khaus thiab kub hnyiab ntawm qhov muag thiab tawv nqaij.

- Kev nqus tau ntau ntawm 2,3-butanedithiol tuaj yeem ua rau kiv taub hau, xeev siab, ntuav thiab lwm yam tsos mob tsis xis nyob.

- Tsis txhob nqus pa thiab tiv thaiv daim tawv nqaij thaum ua haujlwm, thiab hnav cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab lwm yam thaum siv.

- Tsis txhob kov cov oxidants thiab cov khoom xws li cov kua qaub thiab alkalis kom tsis txhob muaj kev phom sij txaus ntshai.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb