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Valeric acid (CAS#109-52-4)

Ngwongwo kemịkalụ:

Usoro ihe omimi C5H10O2
Molar Mass 102.13
Njupụta 0.939g/mLat 25°C(ọkụ)
Ebe Na-agbaze -20--18°C (ọkụ)
Ebe Boling 110-111°C10mm Hg(ọkụ)
Ebe mgbari 192°F
Nọmba JECFA 90
Mmiri Solubility 40 g/L (20ºC)
Solubility 40g/l
Uzuoku nrịbama 0.15 mm Hg (20 Celsius C)
Uzuoku Njupụta 3.5 (vs ikuku)
Ọdịdị Mmiri mmiri
Agba Kpochapụ enweghị ụcha na odo odo
Merck 14,9904
BRN 969454
pKa 4.84 (na 25 ℃)
PH 3.95 (1 mM ngwọta); 3.43 (10 mM ngwọta); 2.92 (100 mM ngwọta);
Ọnọdụ Nchekwa Chekwaa n'okpuru +30 Celsius.
Oke ihe mgbawa 1.8-7.3% (V)
Ntụgharị uche n20/D 1.408 (ọkụ)
Njirimara anụ ahụ na kemịkalụ mmiri mmiri na-enweghị agba na isi na-adịghị mma
mmiri mmiri na-acha odo odo na-enweghị agba ma ọ bụ na-acha odo odo n'ọdịdị.
Jiri A na-eji ya eme ihe maka nkwadebe nke N-valerate, njikọ organic nke ihe ndị bụ isi, nke a na-ejikarị eme ihe na ngwa nri, ọgwụ, mmanụ lubricants, plasticizers na ụlọ ọrụ ndị ọzọ.

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu C - Na-emebi emebi
Koodu ihe egwu R34 - Na-akpata ọkụ
R52/53 - Na-emerụ ihe ndị dị n'ime mmiri, nwere ike ịkpata mmetụta ọjọọ na-adịte aka na gburugburu mmiri.
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S36 - Yiri uwe nchebe kwesịrị ekwesị.
S45 - Ọ bụrụ na ihe mberede ma ọ bụ ọ bụrụ na ahụ adịghị gị mma, chọọ ndụmọdụ ahụike ozugbo (gosi akara ahụ mgbe ọ bụla enwere ike.)
S61 – Zere ntọhapụ na gburugburu ebe obibi. Rụtụ aka na ntuziaka pụrụ iche / mpempe data nchekwa.
NJ UN UN 3265 8/PG 3
WGK Germany 1
RTECS YV6100000
FLUKA BRAND F CODES 13
TSCA Ee
Koodu HS 29156090
Klas Hazard 8
Otu nkwakọ ngwaahịa III
Nsi LD50 iv n'ime ụmụ oke: 1290 ± 53 mg / kg (ma ọ bụ, Wretlind)

 

Okwu mmalite

N-valeric acid, nke a makwaara dị ka valeric acid, bụ ngwakọta organic. Ihe na-esonụ bụ mmalite nke njirimara, ojiji, ụzọ nkwadebe na ozi nchekwa nke n-valeric acid:

 

Ogo:

N-valeric acid bụ mmiri mmiri na-enweghị agba nke nwere ekpomeekpo mkpụrụ ma na-agbaze na mmiri.

 

Jiri:

N-valeric acid nwere ọtụtụ ojiji na ụlọ ọrụ. Otu ngwa bụ isi dị ka ihe mgbaze na ụlọ ọrụ dịka mkpuchi, akwa akwa, akwa akwa, wdg.

 

Usoro:

Enwere ike ịkwadebe acid Valeric site na ụzọ abụọ a na-ahụkarị. Otu ụzọ bụ oxidize nke pentanol na oxygen na ọnụnọ nke ihe na-eme ka ọ mepụta n-valeric acid. Ụzọ ọzọ bụ ịkwadebe n-valeric acid site na oxidizing 1,3-butanediol ma ọ bụ 1,4-butanediol na oxygen n'ihu onye na-eme ihe.

 

Ozi nchekwa:

Norvaleric acid bụ mmiri mmiri na-ere ọkụ, ekwesịrị ka ewepụ ya pụọ ​​​​na ọkụ mepere emepe na ebe okpomọkụ. Mgbe a na-ejikwa ma na-eji ya eme ihe, ọ dị mkpa ịme ihe nchebe dị mkpa, dị ka iyi mkpuchi mkpuchi, uwe mkpuchi na uwe nchebe. Ekwesịrị ịchekwa N-valeric acid n'ime akpa ikuku na-adịghị, pụọ na oxidants na ihe oriri. Ọ dị mkpa ka a kpachapụ anya mgbe ị na-echekwa na iji zere imeghachi omume na kemịkalụ ndị ọzọ.


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