Khoom

Tsev / Khoom/ Organic Chemistry / Aldehydes

Glyoxal

Khoom Taw qhia

Glyoxal Basic cov ntaub ntawv

Khoom npe:	Glyoxal
Synonyms:	BISFORMYL; glyoxylaldehyde; GLYOXAL SOLUTION; GLYOXAL; DIFORMYL; ETHANEDIAL; 1, 2-ethanedione; (CHO) 2
CAS:	107-22-2
MF:	C2H2O2
MW:	58.04
EINECS:	203-474-9
Khoom Categories:	Aldehydes; Tsev Blocks; C1 txog C6; Carbonyl Compounds; Chemical Synthesis; Organic Building Blocks; Pharmaceutical Intermediates; 107-22-2
Mol File:	107-22-2.mol

Glyoxal Chemical Properties

Melting point	-14 degree
Boiling point	104 degree
ceev	1.265 g / mL ntawm 25 degree
vapor ceev	>1 (vs huab cua)
vapor siab	18 hli Hg (20 degree)
Refractive Index	n20/D 1.409
Fp	104 degree
cia temp.	2-8 degree
solubility	dej: soluble (lit.)
daim ntawv	Ua kua
xim	Ntshiab xim tsis muaj xim rau daj
tsw	yig. siv lead ua los yog lt. yig. liq., tsw
Dej Solubility	miscible
Merck	14,4509
BRN	1732463
Kev txwv tsis pub dhau	ACGIH: TWA 0.1 mg/m3
Kev ruaj ntseg:	Stability Combustible. Incompatible nrog muaj zog oxidizing neeg sawv cev. Muaj zog txo tus neeg sawv cev. Tej zaum yuav polyermize exothermically. Incompatible nrog huab cua, dej, oxygen, peroxides, amides, amines, hydroxy-muaj cov ntaub ntawv, nitric acid, aldehydes. Corrodes ntau hlau.
InChIKey	LEQAOMBKQFMDFZ-UHFFFAOYSA-N
LogP	-1.15 ntawm 20 degree
CAS DataBase Reference	107-22-2(CAS DataBase Reference)
NIST Chemistry Reference	Ethanedial (107-22-2)
EPA Tshuaj Registry System	Glyoxal (107-22-2)

Cov ntaub ntawv kev nyab xeeb

Hazard Codes	Xn
Risk Statements	20-36/38-43-68
Cov lus hais txog kev nyab xeeb	36/37
RIDADR	UN 1760
WGK Germany	1
RTECS	MD 270 000
Autoignition Kub	545 degree F
TSCA	Yog lawm
HS Code	29121900
Cov Ntaub Ntawv Muaj Xwm Ceev	107-22-2( Cov ntaub ntawv muaj phom sij)
Toxicity	LD50 hauv nas, guinea npua (mg / kg): 2020, 760 qhov ncauj (Smyth)

MSDS Cov Ntaub Ntawv

Tus kws kho mob	Lus
SigmaAldrich	Lus Askiv
ACROS	Lus Askiv
ALFA	Lus Askiv

Glyoxal Siv thiab Synthesis

Chemical Properties	tsis muaj xim los yog lub teeb daj ua kua
Siv	ermanent-nias ntaub; Dimension stabilization ntawm rayon thiab lwm yam fibers. Insolubilizing tus neeg sawv cev rau cov tebchaw uas muaj polyhydroxyl pawg (polyvinyl cawv, starch, thiab cellulosic cov ntaub ntawv); insolubilizing cov proteins (casein, gelatin, thiab tsiaj kua nplaum); embalming kua; tawv tanning; ntawv txheej nrog hydroxyethylcellulose; txo tus neeg sawv cev hauv dyeing textiles.
Siv	Glyoxal yog siv nyob rau hauv zus tau tej cov textilesand glues thiab organic synthesis.
Siv	Glyoxal yog siv los npaj 4,5-dihydroxy-2-imidazolidinone los ntawm condensation nrog urea. Nws pom daim ntawv thov hauv cov txheej txheem tawv tanning, textile finishes thiab ntawv txheej. Nws yog ib qho tseem ceeb lub tsev thaiv nyob rau hauv lub synthesis ntawm imidazoles. Nws ua raws li ib tug solubilizer thiab cross-linking tus neeg sawv cev nyob rau hauv polymer chemistry. Tsis tas li ntawd, nws yog siv los ua ib qho fixative rau histology los khaws cov hlwb txhawm rau txhawm rau tshuaj xyuas nyob rau hauv lub tshuab tsom.
Txhais	ChEBI: Glyoxal yog dialdehyde uas yog qhov tsawg tshaj plaws thiab uas muaj ethane muaj oxo pawg ntawm ob qho tib si carbons. Nws muaj lub luag haujlwm ua tshuaj tua kab, tshuaj agrochemical, ua xua thiab tshuaj tua kab mob.
Kev piav qhia dav dav	Yellow crystals melting ntawm 15 degree. Li no feem ntau ntsib raws li lub teeb daj kua nrog ib tug qaug zog qaub tsw. Vapor muaj xim ntsuab thiab hlawv nrog cov nplaim violet.
Cua & Dej Reactions	Kev sib xyaw nrog huab cua tuaj yeem tawg. Polymerizes sai sai ntawm kev sawv ntsug, lossis ntawm kev sib cuag nrog cov kab dej (tejzaum nws yog cov tshuaj tiv thaiv hnyav), lossis thaum yaj hauv cov kuab tshuaj uas muaj dej, [Merck, 502(1968)]. Soluble hauv dej. Ib qho tshuaj aqueous muaj mono molecular Glyoxal. [Hawley]
Reactivity Profile	Glyoxal reacts vigorously nrog muaj zog oxidizing cov neeg ua haujlwm xws li nitric acid. Polymerizes sai heev txawm tias qhov kub thiab txias yog tias tsis muaj dej [Noller]. Aqueous daws yog ruaj khov dua tab sis kuj polymerize ntawm sawv. Reacts nrog nws tus kheej nyob rau hauv lub xub ntiag ntawm lub hauv paus muab glyconates. Ua kom muaj kev sib ntxiv thiab kev sib xyaw ua ke uas tej zaum yuav exothermic nrog amines, amides, aldehydes, thiab hydroxide-muaj cov ntaub ntawv. Kev sib xyaw ua ke ntawm cov molar sib npaug nrog ib qho ntawm cov khoom hauv qab no hauv lub thawv kaw ua rau qhov kub thiab txias nce: chlorosulfonic acid, oleum, ethyleneimine, nitric acid, sodium hydroxide [NFPA 1991].
Hazard	Kev sib xyaw ntawm vapor thiab huab cua tuaj yeem tawg. Muaj lus nug txog carcinogen.
Health Hazard	Glyoxal yog daim tawv nqaij thiab qhov muag khaus; qhov tshwm sim tuaj yeem mob me mus rau hnyav. Nws vapors yog irritating rau ntawm daim tawv nqaij thiab ua pa ib ntsuj av. Ntau npaum li cas ntawm 1.8 mg ua rau mob hnyav heev inrabbits lub qhov muag. Glyoxal tau nthuav tawm cov tshuaj toxicity tsawg hauv cov ntawv xeem. Kev noj haus yuav ua rau pw tsaug zog thiab mob plab. LD50 tus nqi, qhov ncauj (guinea npua): 760 mg / kg.
Health Hazard	Inhalation ua rau qee qhov khaus ntawm lub qhov ntswg thiab, 40% tshuaj hauv caj pas. Kev sib cuag nrog kua, 40% tshuaj irritates qhov muag thiab ua rau mob me me ntawm daim tawv nqaij; stains tawv nqaij daj. (Tsis muaj ntaub ntawv qhia txog cov tsos mob ntawm kev noj.)
Hluav Taws Xob	Cwj Pwm Hauv Hluav Taws Xob: Thaum tshav kub kub tuaj yeem ua rau polymerization rau cov khoom siv hluav taws xob, cov khoom khov.
Flammability thiab Explosibility	Tsis cais
Kev ruaj ntseg Profile	Tsawg toxicity los ntawm SYN: AEROTEX GLYOXAL 40 noj thiab tiv tauj daim tawv nqaij. Ib daim tawv nqaij irritant. Ib tug haib txo tus neeg sawv cev. Tej zaum yuav tawg ntawm kev sib cuag nrog huab cua. Polymerizes nruj heev ntawm kev sib cuag nrog dej. Thaum lub sij hawm cia nws yuav spontaneously polymerize thiab ignite. Reacts hnyav nrog chlorosulfonic acid, ethylene imine, HNO3, oleum, NaOH, tuaj yeem ua rau muaj kev kub ntxhov. Nws tuaj yeem tawg thaum tsim khoom. Thaum rhuab mus rau decomposition nws emissions pa luam yeeb thiab irritating fumes. Saib ALDEHYDES thiab.
Pov tseg pov tseg	Glyoxal yog tov nrog ib tug combustible solvent thiab hlawv nyob rau hauv ib tug tshuaj incineratorequipped nrog ib tug afterburner thiab scrubber.

Glyoxal Kev Npaj Cov Khoom Siv thiab Cov Khoom Raw

Cov khoom nyoos

Methanol-->Sodium nitrite-->Aluminum oxide-->Ethylene glycol-->Cupric oxide-->Acetaldehyde-->Quartz tubing, fused, 12.7mm (0.5in) OD for compression type fittings-->strongly acidic type cation exchange resin-->Silver catalyst-->NS-398-->TSIS TXAUS SIAB ANION EXCHANGE RESIN

Cov khoom npaj

Imidazole-->Glyoxylic acid-->Fluorescent Brightener 185-->4-Hydroxyphenylacetic acid-->2-Methylimidazole-->6-QUINOXALINECARBOXYLIC ACID-->2-Chloropyrazine-->4-Hydroxy-D-(-)-2-phenylglycine-->6-CHLOROQUINOXALINE-->2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene-->1,2-Dimethyl-5-nitroimidazole-->4'-(IMIDAZOL-1-YL)ACETOPHENONE-->4-Hydroxyphenylacetamide-->Allantoin-->Berberine-->Hydroxyethyl Cellulose-->Quinoxaline-->6,7-DINITROQUINOXALINE-->4,5-dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one-->Metronidazole-->CYAZOFAMID-->2-HYDROXYPYRAZINE-->2,3-Pyrazinecarboxylic anhydride-->2-Methoxy-3-sec-butyl pyrazine-->Glyoxalbis(2-hydroxyanil)-->4-Hydroxyphenethyl alcohol-->Amiloride hydrochloride-->2-Amino-4-hydroxy-1H-pteridine-->finishing agent for cotton fabric-->2-Isopropyl-3-methoxypyrazine-->30% sulfaclozine-->2-Methoxy-3-isobutyl pyrazine-->Ethylpyrazine-->2, 6-Dichloropyrazine

Cim npe nrov: Tuam Tshoj glyoxal manufacturers, lwm tus neeg, Hoobkas

Tug: 3-Dimethylaminoacrolein

Tom ntej: Tsis muaj

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