1-Penten-3-one (CAS # 1629-58-9)

Chemical Property:

Molecular Formula	c5h8 ua
Molar Mass	84.12 ib
Qhov ntom	0.851 g / mL ntawm 20 ° C 0.845 g / mL ntawm 25 ° C (lit.)
Melting Point	59-61 ° C
Boling Point	38 ° C / 60 mmHg (lit.)
Flash Point	20 ° F
JECFA Number	1147 ib
Dej Solubility	Insoluble hauv dej; soluble nyob rau hauv feem ntau cov organic solvents.
Qhov tshwm sim	Ua kua
Xim	Clear colorless rau amber
Exposure Limit	ACGIH: TWA 2 mg/m3 NIOSH: TWA 10 mg/m3
BRN	1735857 ib
Kev cia khoom	2-8 ° C
Refractive Index	n20/D 1.419 (lit.)
Physical thiab Chemical Properties	Lub teeb daj kua, ntsim, ether, kua txob, qej, mustard, dos thiab lwm yam muaj zog pungent tsw. Kub taw tes 103 ~ 105 ℃, 68 ~ 70 ℃ (27kPa). Tus txheeb ze ntom ntom (d425) yog 0.8468 thiab qhov ntsuas qhov taw qhia (nD20) yog 1.4192. Insoluble nyob rau hauv dej, soluble nyob rau hauv feem ntau cov organic solvents. Flash point -10 ℃, flammable. Cov khoom ntuj tsim muaj nyob rau hauv puag ncig pomelo tev thiab kua txiv hmab txiv ntoo, txiv duaj, chives, nqaij nyuj boiled, dub tshuaj yej, clam nqaij thiab txiv kab ntxwv tseem ceeb roj.

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Khoom cim npe

Risk Codes	R11 - Cov nplaim hluav taws kub heev R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos. R34 - Ua rau kub hnyiab
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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. 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.) S16 - Khaws kom deb ntawm qhov chaw hluav taws xob.
UN IDs	UN 3286 3/PG 2
WGK Germany	3
RTECS	SIB 3800000
FLUKA BRAND F CODE	10-23
TSCA	Yog lawm
HS Code	29141900 ib
Hazard Class	3
Packing Group	II
Toxicity	LD50 ivn-mus: 56 mg/kg CSLNX* NX#00948

Taw qhia

1-penten-3-ib qho yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 1-penten-3-one:

Zoo:

1-penten-3-ib qho yog cov kua tsis muaj xim uas muaj roj zoo li tsw. Nws muaj lub teeb ntom nrog qhov sib txheeb molecular hnyav ntawm 84.12 g / mol.

Siv:

1-penten-3-ib qho muaj ntau yam kev siv. Nws yog ib qho tseem ceeb raw khoom rau synthesis ntawm ntau cov organic tebchaw nyob rau hauv nws cov synthesis. Nws kuj yog siv los ua cov khoom xyaw hauv cov txuj lom thiab flavorings.

Txoj kev:

1-Penten-3-ib qho tuaj yeem npaj tau los ntawm ntau txoj hauv kev. Ib txoj kev siv feem ntau yog tau los ntawm oxidation ntawm pentene. Tom qab oxidation ntawm pentene los ntawm cov catalyst, 1-penten-3-ib qho tuaj yeem tau txais raws li qhov tsim nyog cov tshuaj tiv thaiv.

Cov ntaub ntawv kev nyab xeeb:

Yav dhau los: Methyl p-tert-butylphenylacetate (CAS # 3549-23-3)

Tom ntej: Diethylsuccinate (CAS # 123-25-1)

Sau koj cov lus ntawm no thiab xa tuaj rau peb