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3-Pyridinecarboxaldehyde (CAS # 500-22-1) Featured duab
  • 3-Pyridinecarboxaldehyde (CAS # 500-22-1) 1

3-Pyridinecarboxaldehyde (CAS # 500-22-1)

Chemical Property:

Molecular Formula C6H5 Nr
Molar Mass 107.11 Nws
Qhov ntom 1.141 g / mL ntawm 20 ° C (lit.)
Melting Point 8 ° C
Boling Point 78-81 ° C / 10 mmHg (lit.)
Flash Point 140 ° F
Dej Solubility miscible
Vapor Siab 0.3 hPa (20 ° C)
Qhov tshwm sim kua (ntshiab)
Specific Gravity 1.145 (20/4 ℃)
Xim ntshiab xim av-daj
BRN 10 5343
pKa 3.43 ± 0.10 (Kev kwv yees)
PH 5.4 (111g / l, H2O, 20 ℃)
Kev cia khoom 2-8 ° C
rhiab heev Huab cua Sensitive
Refractive Index n20/D 1.549 (lit.)
Physical thiab Chemical Properties Cov khoom no yog cov kua tsis muaj xim, B. p.95 ~ 97 ℃ / 2kpa, n20D 1.5490, txheeb ze ntom ntom ntawm 1.135.

Product Detail

Khoom cim npe

Risk Codes R10 - Flammable
R37/38 - Kab mob ua pa thiab tawv nqaij.
R42/43 - Tej zaum yuav ua rau muaj kev hnov ​​​​mob los ntawm kev nqus pa thiab kev sib cuag ntawm daim tawv nqaij.
R41 - Riam phom loj rau qhov muag
R34 - Ua rau kub hnyiab
R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij
R22 - Ua phem yog tias nqos
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S39 - Hnav qhov muag / ntsej muag tiv thaiv.
S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.)
S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S23 - Tsis txhob ua pa.
UN IDs UN 1989 3/PG 3
WGK Germany 3
RTECS QS2980000
FLUKA BRAND F CODE 8-10-23 : kuv
TSCA Yog lawm
HS Code 2933399 ib
Kev Ceeb Toom Irritant/Keep Cold/Air Sensitive
Hazard Class 3.2
Packing Group III
Toxicity LD50 qhov ncauj hauv Luav: 2355 mg / kg

 

Taw qhia

3-Pyridine formaldehyde. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 3-pyridine formaldehyde:

 

Zoo:

- Cov tsos mob: 3-pyridine formaldehyde yog cov kua tsis muaj xim lossis dawb siv lead ua.

- Solubility: Nws yog soluble nyob rau hauv feem ntau cov organic solvents xws li ethanol thiab chloroform.

 

Siv:

- Kev siv hluavtaws: 3-pyridine formaldehyde feem ntau yog siv los ua cov khoom siv hluavtaws, ib qho nruab nrab hauv cov organic synthesis thiab cov khoom siv raw.

 

Txoj kev:

- 3-Pyridine formaldehyde tuaj yeem npaj los ntawm N-oxidation ntawm pyridine. Ib txoj hauv kev uas siv los ua ke yog los ua cov pyridine nrog cov tshuaj oxidizing xws li benzoyl peroxide lossis hydrogen peroxide los tsim 3-pyridine formaldehyde.

 

Cov ntaub ntawv kev nyab xeeb:

- Cov kev ceev faj txog kev nyab xeeb hauv qab no yuav tsum raug coj mus rau hauv tus account thaum siv thiab khaws cia 3-pyridine formaldehyde:

- Tsis txhob sib cuag nrog daim tawv nqaij thiab tsis txhob nqus los yog nqus cov khoom xyaw.

- Hnav cov hnab looj tes tshuaj thiab looj tsom iav thaum siv.

- Siv nyob rau hauv qhov chaw uas muaj cua zoo thiab tsis txhob muaj hluav taws kub lossis kub.

- Thaum khaws cia, nws yuav tsum tau muab kaw kom nruj, kom deb ntawm qhov hluav taws kub thiab cov khoom tawg.

- Thaum siv thiab tuav 3-pyridine formaldehyde, ua raws li cov txheej txheem kev nyab xeeb thiab kev tiv thaiv tus kheej.

  • Yav dhau los:
  • Tom ntej:
    • Sau koj cov lus ntawm no thiab xa tuaj rau peb

    cov khoom muaj feem xyuam