Pyridine (CAS#110-86-1)

Ipropati yeMichiza:

Ifomula yeemolekyuli	C5H5N
IMisa yeMolar	79.1
Ukuxinana	0.978 g/mL ku-25 °C (lit.)
Indawo yokunyibilika	-42 °C (isibane.)
Indawo yeBoling	115 °C (lit.)
Indawo yokuflasha	68°F
Ukunyibilika kwamanzi	I-Miscible
Ukunyibilika	H2O: ngokuhambelana
Uxinzelelo loMphunga	23.8 mm Hg ( 25 °C)
Ukuxinana komphunga	2.72 (vs umoya)
Imbonakalo	Ulwelo
Umbala	engenambala
Ivumba	Ivumba le-nauseating libonwa kwi-0.23 ukuya kwi-1.9 ppm (ithetha = 0.66 ppm)
Umda wokuvezwa	TLV-TWA 5 ppm (～15 mg/m3) (ACGIH,MSHA,kunye ne-OSHA); STEL 10 ppm (ACGIH),IDLH 3600 ppm (NIOSH).
Obona bude bubuninzi (λmax)	['λ: 305 nm Amax: 1.00', , 'λ: 315 nm Amax: 0.15', , 'λ: 335 nm Amax: 0.02', , λ: 35
Merck	14,7970
I-BRN	103233
pKa	5.25(nge-25℃)
PH	8.81 (H2O, 20℃)
Imeko yoGcino	Gcina ku +5°C ukuya +30°C.
Uzinzo	Izinzile. Ukutsha. Ayihambelani ne-oxidizing agents enamandla, i-acids eqinile.
Umda wokuqhushumba	12.4%
Refractive Index	n20/D 1.509(lit.)
IiPropati zoMzimba kunye nezeMichiza	Iimpawu zolwelo olungenambala okanye olumthubi olukhanyayo. Inevumba elibi. indawo yokubilisa 115.5 ℃ indawo yokukhenkceza -42 ℃ ukuxinana kobudlelwane 0.9830g/cm3 refractive index 1.5095 indawo edanyazayo 20 ℃ ukunyibilika, i-ethanol, i-acetone, i-ether kunye ne-benzene.
Sebenzisa	Isetyenziswa kakhulu njengezinto eziluhlaza kwishishini lamayeza, esetyenziswa njengezinyibilikisi kunye ne-alcohol denaturants, kodwa ikwasetyenziswa kwimveliso yerabha, ipeyinti, iresin kunye ne-corrosion inhibitors.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko	I-R11 – Iyatsha kakhulu I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. R39/23/24/25 - I-R23/24/25 – Ityhefu ngokuphefumla, xa udibana nesikhumba naxa uginyiwe. I-R52 – Iyingozi kwizinto eziphila emanzini I-R36/38 – Iyacaphukisa amehlo kunye nolusu.
Inkcazelo yoKhuseleko	S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. I-S38 - Kwimeko yokungonelanga komoya, nxiba izixhobo ezifanelekileyo zokuphefumla. S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.) S61 –Kuphephe ukukhutshelwa kokusingqongileyo. Jonga kwimiyalelo ekhethekileyo / kumaphepha edatha yokhuseleko. S28A - S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S28 – Emva kokudibana nolusu, hlamba ngoko nangoko ngeesepha ezininzi. S24/25-Kuphephe ukudibana nolusu namehlo. S22 – Musa ukuphefumla uthuli. S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu. S16 – Gcina kude kwimithombo yomlilo. S7 – Gcina isikhongozeli sivalwe ngokuqinileyo.
Izazisi ze-UN	UN 1282 3/PG 2
WGK eJamani	2
RTECS	I-R8400000
FLUKA BRAND F IIKHOWUDI	3-10
I-TSCA	Ewe
Ikhowudi ye-HS	2933 31 00
Inqaku Lengozi	Iyatsha kakhulu/Inobungozi
IKlasi yeeNgozi	3
Iqela lokuPakisha	II
Ubutyhefu	I-LD50 ngomlomo kwiimpuku: 1.58 g/kg (Smyth)

Intshayelelo

Umgangatho:

1. I-Pyridine lulwelo olungenambala kunye nevumba elinamandla lebenzene.

2. Inomlinganiselo ophezulu wokubilisa kunye nokuguquguquka, kwaye inokunyibilika kwiintlobo ezahlukeneyo ze-solvents eziphilayo, kodwa kunzima ukunyibilika emanzini.

3. I-Pyridine yinto ye-alkaline eyenza i-acids neutralizes emanzini.

4. I-Pyridine inokungena kwi-hydrogen bonding kunye neekhompawundi ezininzi.

Sebenzisa:

1. I-Pyridine isoloko isetyenziswa njenge-solvent kwi-organic synthesis reactions, kwaye ine-solubility ephezulu kwiintlobo ezininzi zezinto eziphilayo.

2. I-Pyridine nayo inezicelo kwi-synthesis ye-pesticides, njenge-synthesis ye-fungicides kunye ne-insecticides.

Indlela:

1. I-Pyridine inokulungiswa ngoluhlu lweendlela ezahlukeneyo zokudibanisa, eyona nto isetyenziswa ngokuqhelekileyo ifunyenwe ngokunciphisa i-hydrogenation ye-pyridinexone.

2. Ezinye iindlela zokulungiselela eziqhelekileyo ziquka ukusetyenziswa kwe-ammonia kunye ne-aldehyde compounds, ukusabela okongeziweyo kwe-cyclohexene kunye ne-nitrogen, njl.

Ulwazi ngoKhuseleko:

1. I-Pyridine yi-solvent ye-organic kwaye ine-volatility ethile. Ingqalelo kufuneka ihlawulwe kwiimeko zelebhu ezinomoya kakuhle xa usebenzisa ukuphepha ukuphefumla i-overdose.

2. I-Pyridine iyacaphukisa kwaye inokubangela umonakalo emehlweni, ulusu kunye nomgudu wokuphefumula. Izixhobo ezifanelekileyo zokukhusela, kubandakanya iiglavu, iiglasi, kunye neemaski ezikhuselayo, kufuneka zinxitywe ngexesha lokusebenza.

3. Amanyathelo afanelekileyo okukhusela kunye nokulawula afunekayo kubantu abaye baxhamla kwi-pyridine ixesha elide.

Ngaphambili: 2-Methyltetrahydrothiophen-3-One (CAS#13679-85-1)

Okulandelayo: 2,5-Dihydroxy-1,4-dithiane(Mercaptoacet-aldehyde dimer) (CAS#40018-26-6)

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