Benzaldehyde Cov ntaub ntawv yooj yim

Khoom npe:	Benzaldehyde
Synonyms:	Artificial tseem ceeb roj ntawm almond; Artificial Almond Roj; Artificial iab almond roj; artificialalmondoil; Benzaldehyde FFC; Benzene carbaldehyde;benzaldehydeffc; Benzene methylal
CAS:	100-52-7
MF:	C7H6O
MW:	106.12
EINECS:	202-860-4

Benzaldehyde Chemical Properties

Melting point	-26 degree(lit.)
Boiling point	178-179 degree (lit.)
ceev	1.044 g / cm3 ntawm 20 degree (lit.)
vapor ceev	3.7 (vs huab cua)
vapor siab	4 hli Hg (45 degree)
Refractive Index	n20/D 1.545 (lit.)
FEMA	2127\|BENZALDEHYDE
Fp	145 degree F
cia temp.	Khaws hauv qab no ntxiv rau 30 degree.
solubility	H2O: soluble 100mg/mL
pka ua	14.90 (ntawm 25 degree)
PH Range	5.9
daim ntawv	zoo
xim	daj ntseg daj
tsw	Zoo li almonds.
PH	5.9 (1g/l, H2O)
tawg txwv	1.4-8.5 feem pua (V)
Dej Solubility	<0.01 g/100 mL at 19.5 ºC
FreezingPoint	-56 degree
rhiab heev	Huab cua Sensitive
JECFA Number	22
Merck	14,1058
BRN	471223
Kev ruaj ntseg:	ruaj khov. Hluav taws kub. Incompatible nrog muaj zog oxidizing tus neeg saib xyuas, muaj zog acids, txo cov neeg ua haujlwm, chav. Cua, lub teeb thiab noo noo-rhiab heev.

Benzaldehyde Siv thiab Synthesis

Siv		1. Benzaldehyde yog ib qho tseem ceeb raw khoom rau tshuaj, dyestuff, naj hoom thiab resin kev lag luam. Nws kuj tuaj yeem siv los ua cov kuab tshuaj, plasticizer thiab cov roj uas tsis muaj kub. Hauv essence, nws yog tsuas yog siv rau kev xa tawm ntawm cov khoom noj qab zib. Ib qho me me ntawm benzaldehyde yog siv txhua hnub hauv qhov tsw thiab tsw ntawm luam yeeb. Txawm hais tias tau siv dav los ua kev lag luam khoom noj khoom haus thiab cov kuab tshuaj ua lag luam, kev siv lub ntsiab ntawm benzyl cawv tseem siv los ua kom muaj ntau yam sib txuas los ntawm cov tshuaj mus rau cov khoom siv yas. Benzyl cawv yog ib qho tseem ceeb ntawm cov khoom nruab nrab hauv kev tsim cov naj hoom, txuj lom, thiab qee cov aniline dyes. Mandelic acid tau tsim los ntawm benzaldehyde raws li qhov pib reagent: Nrog thawj hydrocyanic acid reacts nrog benzaldehyde, ces mandelonitrile hydrolyzed rau Racemic mandelic acid. Glacialist LaChepelle thiab Stillman tau tshaj tawm tias Ice crystallization yog inhibited los ntawm benzaldehyde thiab aldehydes ice nyob rau hauv 1966, thiaj li yuav tiv thaiv cov tuab te tsim (Depth Hoar). Cov txheej txheem no tuaj yeem tiv thaiv snowslide tshwm sim los ntawm kev tsis ruaj khov ntawm cov daus npog. Txawm li cas los xij, qhov sib xyaw no tsis tau siv dav, vim tias kev puas tsuaj ntawm cov nroj tsuag thiab cov dej tsis zoo. 2.Nws yog tsuas yog siv rau kev npaj ntawm flavors, xws li almond, cherry, txiv duaj, txiv ntseej, thiab lwm yam., tus nqi yog mus txog 40 feem pua. Raws li aromatizing tus neeg sawv cev cov kaus poom txiv ntoo syrup, ntxiv tus nqi yog qab zib 3mL / kg. 3. Pharmaceutical, dyestuff, txuj lom intermediates. Rau zus tau tej cov pa oxygen raws li benzene formaldehyde, lauric acid, lauric aldehyde, malachite, benzyl benzoate, benzyl aniline thiab benzylidene acetone thiab lwm yam.. Siv los kho cov xab npum tsw, edible essence, etc. 4. Raws li lub taub hau ntawm cov aroma tshwj xeeb, nws yog siv cov tshuaj tsw qab rau cov tshuaj tsw qab, xws li lilac, dawb, violet, jasmine, acacia, sunflower, qab zib plum, txiv kab ntxwv paj, Tofu paj npleg thiab lwm yam.. Tsis tas li ntawd nws yog siv hauv xab npum. Tsis tas li ntawd nws tuaj yeem siv ua txuj lom rau almond, txiv maj phaub qab zib, berries, cherries, apricots, txiv duaj, plums, walnuts, thiab vanilla taum, ntsim tsw. Caw nrog flavors xws li rum, brandy, thiab lwm yam. 5. Benzaldehyde yog ib qho nruab nrab ntawm cov tshuaj tua kab mob, cog kev loj hlob regulator, thiab anti-amine. 6. Siv los ua reagent rau kev txiav txim siab ntawm ozone, phenol, alkaloid thiab methylene. Siv nyob rau hauv kev npaj ntawm txuj lom.
Cua & Dej Reactions	Oxidizes nyob rau hauv cov huab cua los tsim benzoic acid, uas yog me ntsis tshuaj lom los ntawm kev noj. Insoluble hauv dej.
khaws cia			Benzaldehyde yuav tsum tau khaws cia rau hauv lub thawv kaw nruj nreem thiab tiv thaiv kev puas tsuaj rau lub cev. Kev khaws cov tshuaj lom neeg sab nraud lossis hauv thaj chaw uas tau muab cais tawm yog qhov zoo dua, qhov chaw cia khoom sab hauv yuav tsum yog nyob rau hauv qhov chaw ntim cov kua dej los yog lub txee. Benzaldehyde yuav tsum tau muab cais tawm ntawm cov ntaub ntawv oxidizing. Tsis tas li ntawd, qhov chaw cia thiab siv yuav tsum tsis muaj chaw haus luam yeeb. Cov ntim ntawm cov khoom no yuav muaj kev phom sij thaum khoob vim lawv khaws cov khoom seem (vapors, kua); saib xyuas tag nrho cov lus ceeb toom thiab kev ceev faj tau teev tseg rau cov khoom
Kev xa khoom			UN1990 Benzaldehyde, Hazard chav kawm: 9; Cov ntawv lo: 9-Txhua yam khoom siv phom sij.

Benzaldehyde Specification

Xim (Hz)	20 Max
Purity	99.5% Min
Qhov ceev, 20 degree (G / Cm3)	1.044-1.049
Acid Tus nqi	0.5 feem pua Max
Cov tshuaj chlorine	0.005 feem pua Max

Benzaldehyde yog ib qho organic compound nrog cov mis molecular ntawm C7H6O, cov kua tsis muaj xim. Nws muaj nyob rau hauv hyacinth, lemongrass, cinnamon, iris, thiab cistus. Nws muaj iab iab almond, cherry thiab txiv ntoo aromas.

Benzaldehyde yog qhov yooj yim tshaj plaws thiab feem ntau siv aromatic aldehyde hauv kev lag luam. Nws yog cov kua uas tsis muaj xim nyob rau hauv chav tsev kub nrog ib qho tshwj xeeb almond tsw. Benzaldehyde yog cov khoom tseem ceeb ntawm almond roj extract. Nws tseem tuaj yeem muab rho tawm los ntawm apricots, cherries, nplooj nplooj thiab txiv duaj pits. Cov tshuaj no kuj muaj nyob rau hauv cov txiv ntoo thiab txiv ntoo hauv daim ntawv ntawm glycosides (mandelin).

Cov tshuaj lom neeg ntawm benzaldehyde zoo ib yam li fatty aldehydes, tab sis kuj muaj qhov sib txawv. Benzaldehyde tsis tuaj yeem txo Fehling's reagent; Thaum txo cov benzaldehyde nrog cov reagent siv thaum txo cov roj aldehydes, ntxiv rau cov khoom tseem ceeb benzyl cawv, qee cov tetra-hloov vicinal glycol tebchaw thiab s-diphenyl glycol kuj tsim. Nyob rau hauv lub xub ntiag ntawm poov tshuaj cyanide, ob molecules ntawm benzaldehyde tsim benzoin los ntawm pub hydrogen atoms. Benzaldehyde tseem tuaj yeem raug hloov pauv cov tshuaj tiv thaiv electrophilic ntawm cov tshuaj tsw qab, uas feem ntau tsim cov khoom hloov pauv meta. Piv txwv li, cov khoom tseem ceeb thaum lub sij hawm nitration yog meta-nitrobenzaldehyde. Nws yog yooj yim oxidized nyob rau hauv cov huab cua los ua dawb benzoic acid. Nws tuaj yeem cuam tshuam nrog amides los tsim cov tshuaj intermediates.

Cim npe nrov: benzaldehyde cas no.100-52-7, Suav teb, manufacturers, lwm tus neeg, Hoobkas, kev cai, wholesale

Benzaldehyde CAS NO. 100-52-7