Ucingo:+86 21 6460 6569
isibhengezo_sekhasi

umkhiqizo

I-Valeric acid(CAS#109-52-4) Isithombe Esifakiwe
  • I-Valeric acid(CAS#109-52-4) 1

I-Valeric acid(CAS#109-52-4)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C5H10O2
I-Molar Mass 102.13
Ukuminyana 0.939g/mLat 25°C(lit.)
I-Melting Point −20-−18°C(lit.)
I-Boling Point 110-111°C10mm Hg(lit.)
I-Flash Point 192°F
Inombolo ye-JECFA 90
Ukuncibilika kwamanzi 40 g/L (20 ºC)
Ukuncibilika 40g/l
I-Vapor Presure 0.15 mm Hg ( 20 °C)
I-Vapor Density 3.5 (vs air)
Ukubukeka Uketshezi
Umbala Kucace kungabi nambala ukuya kokuphuzi ngokuphaphathekile
I-Merck 14,9904
I-BRN 969454
pKa 4.84(ku-25℃)
PH 3.95(1 mM isisombululo);3.43(10 mM isixazululo);2.92(100 mM isixazululo);
Isimo Sesitoreji Gcina ngaphansi kuka +30°C.
Umkhawulo Oqhumayo 1.8-7.3%(V)
I-Refractive Index n20/D 1.408(lit.)
Izakhiwo Zomzimba Nezamakhemikhali uketshezi olungenambala olunephunga elibi
uketshezi olungenambala noma oluphuzi ngokuphaphathekile ngokubukeka.
Sebenzisa Ikakhulukazi esetshenziselwa ukulungiswa kwe-N-valerate, ukuhlanganiswa kwezinto eziphilayo eziyisisekelo, ezisetshenziswa kakhulu izinongo, imithi, izinto zokugcoba, ama-plasticizers nezinye izimboni.

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi C – Iyabola
Amakhodi Engozi R34 – Ibangela ukusha
R52/53 – Kuyingozi ezintweni eziphila emanzini, kungabangela imiphumela emibi yesikhathi eside endaweni yasemanzini.
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36 – Gqoka izingubo ezifanele zokuzivikela.
S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.)
I-S61 - Gwema ukudedelwa endaweni. Bheka imiyalelo ekhethekile / amaphepha edatha okuphepha.
Ama-ID e-UN UN 3265 8/PG 3
I-WGK Germany 1
I-RTECS YV6100000
AMAKHODI E-FLUKA BRAND F 13
I-TSCA Yebo
Ikhodi ye-HS 29156090
I-Hazard Class 8
Iqembu Lokupakisha III
Ubuthi I-LD50 iv kumagundane: 1290 ±53 mg/kg (Noma, Wretlind)

 

Isingeniso

I-N-valeric acid, eyaziwa nangokuthi i-valeric acid, iyinhlanganisela ephilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-n-valeric acid:

 

Ikhwalithi:

I-N-valeric acid iwuketshezi olungenambala olunokunambitheka kwezithelo futhi luncibilika emanzini.

 

Sebenzisa:

I-N-valeric acid inokusetshenziswa okuhlukahlukene embonini. Isicelo esisodwa esikhulu sinjenge-solvent ezimbonini ezifana nezingubo, odayi, izinto zokunamathisela, njll.

 

Indlela:

I-Valeric acid ingalungiswa ngezindlela ezimbili ezivamile. Enye indlela iwukuba i-oxidize i-pentanol ne-oxygen kancane phambi kwe-catalyst ukukhiqiza i-n-valeric acid. Enye indlela ukulungisa i-n-valeric acid ngokufaka i-oxidizing i-1,3-butanediol noma i-1,4-butanediol nge-oxygen phambi kwe-catalyst.

 

Ulwazi Lokuphepha:

I-Norvaleric acid iwuketshezi oluvuthayo futhi kufanele igcinwe kude namalangabi avulekile nemithombo yokushisa. Lapho uphatha futhi usebenzisa, kuyadingeka ukuthatha izinyathelo zokuzivikela ezidingekayo, njengokugqoka izibuko zokuzivikela, amagilavu ​​okuzivikela kanye nezingubo zokuzivikela. I-N-valeric acid kufanele futhi igcinwe esitsheni esingangeni moya, kude nama-oxidants kanye nezinto zokudla. Kudingeka ukunakekelwa lapho ugcina futhi usebenzisa ukugwema ukusebenzisana namanye amakhemikhali.

  • Okwedlule:
  • Olandelayo:
    • Bhala umyalezo wakho lapha futhi usithumelele wona

    imikhiqizo ehlobene