I-Glyoxylic acid/CAS: 298-12-4
Inkcazo emfutshane:
Igama leMveliso: i-Glyoxylic acid
I-CAS: 298-12-4
Uhlobo: ZA-Y
MF:C2H2O3
I-MW: 74.04
ULWAKHIWO:
Inkcazo:
I-Glyoxylic acid, ekwaziwa ngokuba yi-formic acid, i-hydrated acetic acid, okanye i-oxoacetic acid, enefomyula yekhemikhali i-C2H203, yeyona aldehyde acid ilula efumaneka kwiziqhamo ezingavuthwanga, amagqabi aluhlaza athambileyo, kunye neebhithi zeswekile. I-crystallization evela emanzini yinkqubo yekristale ye-monoclinic (equlethe i-1/2 yamanzi ekristale). Ubunzima be-molecular obuhambelanayo yi-70.04. Iqondo lokunyibilika yi-98 ℃. Inevumba elibi, yi-asidi ebola kakhulu, ilula ukunyibilika, kwaye inokwenza intlama xa ivezwe emoyeni. Inyibilika kancinci kwi-ethanol, i-ether, kunye ne-benzene, inokunyibilika ngokukhululekileyo emanzini, kwaye isisombululo samanzi sizinzile kwaye asiwohloki emoyeni. Sikhona ngendlela yokunyibilika kwisisombululo samanzi. Ngaphandle kwentsimbi engatyiwayo, sinokusabela kwiintsimbi ezininzi. Sineempawu ze-acidic kunye ne-aldehyde. Ingongezwa nge-sodium bisulfite okanye i-hydrocyanic acid, isabela nge-hydroxylamine okanye i-phenylhydrazine ukuze yenze i-oxime okanye i-hydrazone, idlule kwi-silver mirror reaction, idlule kwi-Conicoro reaction, kwaye ikwavelisa iityuwa ze-carboxylate kunye nee-esters.
Inkcazo:
| Into | Inkcazo |
| Indawo yokunyibilika | -93°C |
| Indawo yokubila | 111 °C |
| Uxinano | 1.33 g/mL kwi-20 °C |
| Isalathisi sokubonisa ukukhanya | n20/D 1.414 |
| Uxinzelelo lomphunga | 14hPa kwi-19.85℃ |
| Ubushushu bokugcina. | Gcina ngaphantsi kwe +30°C. |
| Ukunyibilika | Ixutywa ne-ethanol. Ixutywa kancinci ne-ether kunye ne-benzene. Ixutywa nee-esters. |
| Ifomu | Ulwelo olucacileyo |
| Umbala | Akukho mbala ukuya ko-orenji okhanyayo ukuya kotyheli |
| i-pka | 3.18 (kwi-25℃) |
| PH | 0.3 (19.5°C kwi-H2O) |
Ukusetyenziswa
I-Glyoxalic acid ingasetyenziswa ekuhlanganiseni ii-reactions ezahlukeneyo.
I-Glyoxylic acid isetyenziswa kwi-Hopkins Cole reaction, esetyenziswa ekufumaneni i-tryptophan kwiiproteni.
Isabela kunye ne-phenol ukuze ifumane i-4-hydroxymandelic acid, ethi xa isabela ngakumbi ne-ammonia inike i-hydroxyphenylglycine, njengophawu lokuqala lwe-amoxicillin.
Ikwasetyenziswa njengesixhobo sokuqala sokulungiselela i-4-hydroxyphenylacetic acid, esetyenziselwa ukuvelisa i-atenolol.
Ukupakisha
250KG/Idrama okanye ngokweemfuno zomthengi.
Gcina kwaye ugcine
Ixesha lokuphelelwa: Iinyanga ezingama-24 ukususela kumhla wokwenziwa kwayo kwiphakheji yokuqala engavulwanga igcinwe kwindawo epholileyo neyomileyo kude nelanga elithe ngqo, amanzi.
Indawo yokugcina umoya, Ukomisa kubushushu obuphantsi, Yahlulwe kwii-oxidants, ii-asidi.
