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Pyridine (CAS # 110-86-1) Featured duab
  • Pyridine (CAS # 110-86-1) 1

Pyridine CAS Nr 110-86-1

Chemical Property:

Molecular Formula C5H5N
Molar Mass 79.1 ib
Qhov ntom 0.978 g / mL ntawm 25 ° C (lit.)
Melting Point -42 ° C (lit.)
Boling Point 115 ° C (lit.)
Flash Point 68 ° F
Dej Solubility Miscible
Solubility H2O: raws li txoj cai
Vapor Siab 23.8 hli Hg (25 ° C)
Vapor Density 2.72 (vs huab cua)
Qhov tshwm sim Ua kua
Xim tsis muaj xim
tsw Nauseating tsw ntes tau ntawm 0.23 txog 1.9 ppm (lub ntsiab lus = 0.66 ppm)
Exposure Limit TLV-TWA 5 ppm (～15 mg/m3) (ACGIH, MSHA, and OSHA); STEL 10 ppm (ACGIH), IDLH 3600 ppm (NIOSH).
Qhov siab tshaj plaws wavelength (λmax) ['λ: 305 nm Amax: 1.00',
, 'λ: 315 nm Amax: 0.15',
, 'λ: 335 nm Amax: 0.02',
ib: 35,
Merck 14,7970 ib
BRN 1 03233
pKa 5.25 (ntawm 25 ℃)
PH 8.81 (H2O, 20 ℃)
Kev cia khoom Khaws ntawm +5 ° C rau + 30 ° C.
Kev ruaj ntseg ruaj khov. Flamable. Incompatible nrog muaj zog oxidizing neeg sawv cev, muaj zog acids.
Explosive txwv 12.4%
Refractive Index n20/D 1.509 (lit.)
Physical thiab Chemical Properties Cov yam ntxwv ntawm cov kua tsis muaj xim lossis lub teeb daj. Muaj ib qho tsis kaj siab tsw.
Kub taw tes 115.5 ℃
qhov chaw khov kho -42 ℃
txheeb ze ntom ntom 0.9830g / cm3
Refractive Index 1.5095
flash point 20 ℃
Solubility, ethanol, acetone, ether thiab benzene.
Siv Feem ntau yog siv los ua cov khoom siv raw rau kev lag luam kws tshuaj, siv los ua cov kuab tshuaj thiab cawv denaturants, tab sis kuj tseem siv los tsim cov roj hmab, xim, resin thiab corrosion inhibitors.

Product Detail

Khoom cim npe

Risk Codes R11 - Cov nplaim hluav taws kub heev
R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos.
R39/23/24/25 -
R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos.
R52 - Ua phem rau cov kab mob hauv dej
R36/38 - Kab mob rau qhov muag thiab tawv nqaij.
Kev nyab xeeb piav qhia S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S38 - Yog tias qhov cua tsis txaus, hnav cov khoom ua pa uas tsim nyog.
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.)
S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb.
S28A -
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S28 - Tom qab sib cuag nrog daim tawv nqaij, ntxuav tam sim nrog xab npum-suds ntau.
S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S22 - Tsis txhob nqus plua plav.
S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog.
S16 - Khaws kom deb ntawm qhov chaw hluav taws xob.
S7 - Khaws lub thawv kaw kom nruj.
UN IDs UN 1282 3/PG 2
WGK Germany 2
RTECS UA 8400000
FLUKA BRAND F CODE 3-10
TSCA Yog lawm
HS Code 29333100 ib
Kev Ceeb Toom Heev Flammable/Homful
Hazard Class 3
Packing Group II
Toxicity LD50 ntawm qhov ncauj hauv nas: 1.58 g / kg (Smyth)

 

Taw qhia

Zoo:

1. Pyridine yog cov kua tsis muaj xim nrog cov ntxhiab tsw benzene.

2. Nws muaj qhov kub thiab txias siab, thiab tuaj yeem soluble hauv ntau yam organic solvents, tab sis nws nyuaj rau soluble hauv dej.

3. Pyridine yog ib yam khoom alkaline uas neutralizes acids hauv dej.

4. Pyridine tuaj yeem ua rau hydrogen bonding nrog ntau lub tebchaw.

 

Siv:

1. Pyridine feem ntau yog siv los ua cov kuab tshuaj hauv cov organic synthesis, thiab muaj cov solubility siab rau ntau cov organic tebchaw.

2. Pyridine kuj muaj cov ntawv thov hauv kev sib xyaw ntawm cov tshuaj tua kab, xws li kev sib txuas ntawm fungicides thiab tshuaj tua kab.

 

Txoj kev:

1. Pyridine tuaj yeem npaj tau los ntawm ntau hom kev sib txawv, feem ntau yog siv los ntawm hydrogenation txo ntawm pyridinexone.

2. Lwm txoj kev npaj muaj xws li kev siv ammonia thiab aldehyde tebchaw, ntxiv cov tshuaj tiv thaiv cyclohexene thiab nitrogen, thiab lwm yam.

 

Cov ntaub ntawv kev nyab xeeb:

1. Pyridine yog cov kuab tshuaj organic thiab muaj qee yam volatility. Kev ceev faj yuav tsum tau them rau qhov chaw kuaj qhov cua zoo thaum siv kom tsis txhob nqus cov tshuaj ntau dhau.

2. Pyridine ua rau khaus thiab ua rau lub qhov muag, tawv nqaij, thiab ua pa puas. Cov cuab yeej tiv thaiv tsim nyog, suav nrog hnab looj tes, tsom iav, thiab lub ntsej muag tiv thaiv, yuav tsum hnav thaum ua haujlwm.

3. Kev tiv thaiv thiab kev tswj kom tsim nyog yuav tsum muaj rau cov neeg uas tau raug tshuaj pyridine ntev.

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

    cov khoom muaj feem xyuam