Furfural (CAS#98-01-1)

Ngwongwo kemịkalụ:

Usoro ihe omimi	C5H4O2
Molar Mass	96.08
Njupụta	1.16 g/mL na 25 Celsius C (ọkụ)
Ebe Na-agbaze	-36 Celsius C (ọkụ ọkụ)
Ebe Boling	162C (ọkụ)
Ebe mgbari	137°F
Nọmba JECFA	450
Mmiri Solubility	8.3 g / 100 ml
Solubility	95% ethanol: soluble1ML/ml, doro anya
Uzuoku nrịbama	13.5 mm Hg (55 Celsius)
Uzuoku Njupụta	3.31 (na ikuku)
Ọdịdị	Mmiri mmiri
Agba	nnukwu agba aja aja
Oke ngosi	NIOSH REL: IDLH 100 ppm; OSHA PEL: TWA 5 ppm (20 mg / m3); ACGIHTLV: TWA 2 ppm (anabatara).
Merck	14,4304
BRN	105755
PH	> = 3.0 (50g/l, 25 ℃)
Ọnọdụ Nchekwa	Chekwaa n'okpuru +30 Celsius.
Nkwụsi ike	Kwụsie ike. Ihe ndị a ga-ezere gụnyere ntọala siri ike, ihe ndị na-eme ka oxidizing siri ike na acid siri ike. Enwere ike ire ọkụ.
Mmetụta	Mmetụta ikuku
Oke ihe mgbawa	2.1-19.3% (V)
Ntụgharị uche	n20/D 1.527
Njirimara anụ ahụ na kemịkalụ	Mmiri mmiri nwere mmanu na-enweghị agba nke nwere isi pụrụ iche nke yiri benzaldehyde. Agba na-agbanwe ngwa ngwa gaa na-acha ọbara ọbara-aja aja mgbe ekpughere ya na ìhè na ikuku. Ọ dị mfe iji uzuoku mee ka ọ gbanwee. esi esi 161,7 ℃ ebe oyi -36.5 ℃ njupụta ikwu 1.1594 index refractive 1.5263 flash point 60 ℃ solubility ntakịrị soluble na mmiri, soluble na ethanol, ether, acetone, chloroform, benzene.
Jiri	A na-eji ya dị ka akụrụngwa maka njikọ organic, kamakwa maka njikọ nke resins, varnishes, pesticides, pharmaceuticals, roba na mkpuchi.

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Nkọwa ngwaahịa

Mkpado ngwaahịa

Koodu ihe egwu	R21 - na-emerụ ahụ na kọntaktị na akpụkpọ ahụ R23/25 - Na-egbu egbu site na iku ume ma ọ bụrụ na iloro ya. R36 / 37 - na-akpasu iwe na anya na usoro iku ume. R40 - Ihe akaebe dị oke nke mmetụta carcinogenic R36 / 37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ.
Nkọwapụta nchekwa	S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike. S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu. 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.) S1/2 - Debe ekpochi na ebe ụmụaka na-apụghị iru. S36/37 - Yiri uwe nchebe kwesịrị ekwesị na uwe aka.
NJ UN	UN 1199 6.1/PG 2
WGK Germany	2
RTECS	LT7000000
FLUKA BRAND F CODES	1-8-10
TSCA	Ee
Koodu HS	2932 12 00
Ihe edeturu egwu	Iwe iwe
Klas Hazard	6.1
Otu nkwakọ ngwaahịa	II
Nsi	LD50 ọnụ na oke: 127 mg / kg (Jenner)

Okwu mmalite

Furfural, nke a makwaara dị ka 2-hydroxyunsaturated ketone ma ọ bụ 2-hydroxypentanone. Ihe na-esonụ bụ mmalite nke njirimara, ojiji, ụzọ nkwadebe na ozi nchekwa nke furfural:

Ogo:

- Ọ nwere ọdịdị enweghị agba ma nwee ụtọ ụtọ pụrụ iche.

- Furfural nwere obere solubility na mmiri, ma ọ bụ soluble na mmanya na ether solvents.

- Furfural na-adị mfe oxidized na mfe ire ere site na okpomọkụ.

Usoro:

A na-enweta usoro a na-ahụkarị maka ịkwadebe furfural site na oxidation nke C6 alkyl ketones (dịka, hexanone).

Dịka ọmụmaatụ, hexanone nwere ike oxidized ka ọ bụrụ furfural site na iji oxygen na ihe ndị na-akpali akpali dị ka potassium permanganate ma ọ bụ hydrogen peroxide.

- Na mgbakwunye, acetic acid nwekwara ike meghachi omume na mmanya dị iche iche C3-C5 (dịka mmanya isoamyl, wdg) iji mepụta ester kwekọrọ, wee belata iji nweta furfural.

Ozi nchekwa:

- Furfural nwere obere toxicity mana ọ ka kwesịrị iji ma chekwaa ya nke ọma.

- Zere kọntaktị na akpụkpọ ahụ na anya, ma were ọtụtụ mmiri sachaa ozugbo ma ọ bụrụ na ọ na-eme ya.

- Ekwesịrị ịkpachara anya iji zere kọntaktị na oxidants siri ike, isi mmalite ọkụ, wdg n'oge nchekwa na iji gbochie ọkụ ma ọ bụ mgbawa.

- Ekwesịrị ịnye ọnọdụ ikuku dị mma n'oge eji iji zere ikuku ume nke furfural vapors.

Nke gara aga: 2-Isobutyl-3-Methyl Pyrazine (CAS#13925-06-9)

Osote: 4-Methyltetrahydrothiophen-3-One (CAS # 50565-25-8)

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