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khoom

Yellow 18 CAS 6407-78-9

Chemical Property:

Molecular Formula C18H18N4O
Molar Mass 306.36 ib
Qhov ntom 1.19
Boling Point 497.8 ± 45.0 ° C (Predicted)
Flash Point 254.8°C dej
Dej Solubility 62.94μg / L ntawm 25 ℃
Vapor Siab 0Pa ntawm 25 ℃
pKa 1.45 ± 0.70 (Tshaj tawm)
Refractive Index 1.63 ib

Product Detail

Khoom cim npe

 

Taw qhia

Solvent Yellow 18 yog cov kuab tshuaj organic nrog lub npe tshuaj ntawm 2-chloro-1,3,2-dibenzothiophene.

 

Solvent Yellow 18 muaj cov khoom nram qab no:

1. Cov tsos: daj crystalline hmoov;

4. Solubility: Soluble nyob rau hauv polar organic solvents, xws li ethanol, ethers thiab chlorinated hydrocarbons.

 

Kev siv tseem ceeb ntawm cov kuab tshuaj daj 18:

1. Raws li cov xim nruab nrab: cov kuab tshuaj daj 18 tuaj yeem siv rau hauv kev sib txuas ntawm cov dyes, thiab ua lub luag haujlwm tseem ceeb hauv dyeing ntawm cov ntaub, ntawv lossis cov khoom yas;

2. Raws li cov kuab tshuaj: Nws muaj cov solubility zoo thiab tuaj yeem siv los ua cov kuab tshuaj hauv cov tshuaj organic synthesis.

 

Kev npaj cov kuab tshuaj daj 18:

Cov kuab tshuaj daj 18 tuaj yeem tsim los ntawm cov tshuaj tiv thaiv ntawm benzothiophene nrog chloroacetyl chloride, thiab tom qab ntawd tau txais los ntawm kev ua haujlwm catalytic ntawm cuprous chloride thiab iridium carbonate.

 

Cov ntaub ntawv kev nyab xeeb ntawm Solvent Yellow 18:

1. Cov kuab tshuaj daj 18 muaj qee yam khaus thiab toxicity, uas yuav ua rau khaus thiab tsis xis nyob thaum sib cuag nrog daim tawv nqaij thiab nqus tau pa;

2. Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj kev sib cuag nrog cov tawv nqaij thiab qhov muag thaum siv, thiab xyuas kom meej tias kev ua haujlwm tau ua tiav hauv qhov chaw muaj cua zoo;

3. Nyob rau hauv cov ntaub ntawv ntawm kev sib cuag los yog kev huam yuaj, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob raws sij hawm;

4. Thaum khaws cia, nws yuav tsum tau muab kaw thiab khaws cia rau hauv qhov chaw txias, qhuav kom tsis txhob muaj oxidants muaj zog thiab muaj zog acids.


  • Yav dhau los:
  • Tom ntej:

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