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khoom

Dimethyl sulfide (CAS # 75-18-3)

Chemical Property:

Molecular Formula C2H6S
Molar Mass 62.13 Nws
Qhov ntom 0.846g / mLat 25 ° C (lit.)
Melting Point -98 ° C (lit.)
Boling Point 38 ° C (lit.)
Flash Point -34 ° F
JECFA Number 452 ib
Dej Solubility 溶于乙醇和乙醚,不溶于水.
Solubility Miscible nrog cawv, ethers, esters, ketones, aliphatic thiab aromatic hydrocarbons. Me ntsis miscible nrog
Vapor Siab 26.24 psi (55 ° C)
Vapor Density 2.1 (vs huab cua)
Qhov tshwm sim Ua kua
Specific Gravity 0.849 (20/4 ℃)
Xim Ntshiab xim tsis muaj xim
tsw Ethereal, permeating; tsis pom zoo; ua phem.
Exposure Limit ACGIH: TWA 10 ppm
Merck 14,6123 ib
BRN 1696847 ib
Kev cia khoom Khaws ntawm +2 ° C txog +8 ° C.
Kev ruaj ntseg ruaj khov. Incompatible nrog muaj zog oxidizing neeg sawv cev. Cov nplaim hluav taws kub heev - nco ntsoov qhov kub kub tsawg, tsis tshua muaj flash point, thiab dav tawg txwv. Kev sib xyaw nrog huab cua tuaj yeem ua rau tawg. Incompatible nrog
Explosive txwv 2.2-19.7% (V)
Refractive Index n20/D 1.435 (lit.)
Physical thiab Chemical Properties Colorless pob tshab volatile kua. Muaj ib qho tsis kaj siab tsw.
melting point -83 ℃
Kub taw tes 37.5 ℃
txheeb ze ntom ntom 0.845
Refractive Index 1.4438
flash point -17.8 ℃
Soluble hauv ethanol thiab ether, insoluble hauv dej.
Siv Rau kev npaj ntawm dimethyl sulfoxide thiab ua tshuaj tua kab intermediates lossis cov kuab tshuaj

Product Detail

Khoom cim npe

Risk Codes R11 - Cov nplaim hluav taws kub heev
R22 - Ua phem yog tias nqos
R37/38 - Kab mob ua pa thiab tawv nqaij.
R41 - Riam phom loj rau qhov muag
R36 - Khau qhov muag
Kev nyab xeeb piav qhia S7 - Khaws lub thawv kaw kom nruj.
S9 - Khaws lub thawv rau hauv qhov chaw muaj cua zoo.
S16 - Khaws kom deb ntawm qhov chaw hluav taws xob.
S29 - Tsis txhob muab tso rau hauv qhov dej.
S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub.
S36/39 -
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
UN IDs UN 1164 3/PG 2
WGK Germany 1
RTECS PIB 5075000
FLUKA BRAND F CODE 13
TSCA Yog lawm
HS Code 29309098 ib
Hazard Class 3
Packing Group II
Toxicity LD50 qhov ncauj hauv luav: 535 mg/kg LD50 dermal Luav > 5000 mg/kg

 

Taw qhia

Dimethyl sulfide (tseem hu ua dimethyl sulfide) yog inorganic sulfur compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm dimethyl sulfide:

 

Zoo:

- Cov tsos mob: cov kua xim tsis muaj xim nrog cov ntxhiab tsw tshwj xeeb.

- Solubility: miscible nrog ethanol, ethers, thiab ntau cov kuab tshuaj organic.

 

Siv:

- Cov ntawv thov kev lag luam: Dimethyl sulfide yog dav siv los ua cov kuab tshuaj hauv cov organic synthesis, tshwj xeeb tshaj yog nyob rau hauv sulfidation thiab thioaddition tshuaj tiv thaiv.

 

Txoj kev:

- Dimethyl sulfide tuaj yeem npaj los ntawm cov tshuaj tiv thaiv ncaj qha ntawm ethanol thiab sulfur. Cov tshuaj tiv thaiv feem ntau tshwm sim nyob rau hauv acidic tej yam kev mob thiab yuav tsum tau cua sov.

- Nws tseem tuaj yeem npaj tau los ntawm kev ntxiv sodium sulfide rau ob methyl bromides (xws li methyl bromide).

 

Cov ntaub ntawv kev nyab xeeb:

- Dimethyl sulfide muaj cov ntxhiab tsw ntxhiab thiab muaj qhov ua rau khaus ntawm daim tawv nqaij thiab qhov muag.

- Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag thiab ua tib zoo ceev faj thaum siv.

- Thaum siv thiab khaws cia, kev sib cuag nrog cov oxidants thiab cov kua qaub muaj zog yuav tsum zam kom tsis txhob muaj kev cuam tshuam tsis zoo.

- Cov khib nyiab yuav tsum muab pov tseg raws li txoj cai hauv zos thiab cov kev cai thiab yuav tsum tsis txhob muab pov tseg.

- Khaws qhov cua kom zoo thaum khaws cia thiab siv.

 


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  • Tom ntej:

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