Glycine

Glycine(oo loo soo gaabiyo Gly), oo sidoo kale loo yaqaan acetic acid, waa amino acid aan muhiim ahayn, qaacidda kiimikada ee ay leedahay waa C2H5NO2. Glycine waa amino acid oo ka kooban glutathione-ka antioxidant-ka ee la dhimay ee endogenous, kaas oo inta badan lagu kabo ilo dibadda ah marka jirku uu ku jiro walaac daran, mararka qaarkoodna waxaa loo yaqaan amino acid-ka semi-assential. Glycine waa mid ka mid ah amino acids-ka ugu fudud.

Sifooyinka kiimikada:

Kiliinig cad oo monoclinic ah ama lix-geesood ah, ama budo crystalline cad. Ur la'aan, dhadhan macaan oo gaar ah leh. Si fudud ugu milmi kara biyaha, ku milmi kara biyaha: 25g/100ml 25℃; 50℃, 39.1g/10Chemicalbook0ml; 54.4g/100ml 75℃; 100℃, waa 67.2g/100ml. Aad uma milmi karo ethanol, qiyaastii 0.06g oo lagu milmi karo 100g oo ethanol aan biyo lahayn. Ku dhawaad ​​​​kuma milmi karo acetone iyo ether.

Habka wax soo saarka:

Habka Strecker iyo habka ammonification-ka ee chloro-acetic acid ayaa ah hababka ugu muhiimsan ee diyaarinta.

Habka Strecker:formaldehyde, sodium cyanide, falgalka ammonium chloride oo isku jira, ka dibna ku dar glacial acetic acid, roobabka methylene aminoacetonitrile; Amino acetonitrile sulfate waxaa la helay iyadoo lagu daray methylene acetonitrile ethanol iyadoo ay jirto sulfuric acid. Sulfuriga waxaa burburiya barium hydroxide si loo helo milix glycine barium; Ka dibna sulfuric acid ayaa lagu daraa si loo kiciyo barium, loo sifeeyo, loo xoojiyo filterka, ka dib marka la qaboojiyo waxay soo saartaa kiristaalo glycine ah. Tijaabo [NaCN] – > [NH4Cl] CH2 = N – CH2CNCH2 = N – CH2CN [- H2SO4] – > [C2H5OH] H2NCH2CN, H1SO4H2NCH2CN, – H2SO4 [BChemicalbooka (OH) 2] – (NH2CH2COO) 2 ba (NH2CH2COO) 2 ba [- H2SO4] – > H2NCH2COOH

Habka ammonia-ga ee aashitada Chloro-acetic:Biyo ammonia ah iyo ammonium bicarbonate isku dhafan oo kuleyliya ilaa 55℃, iyadoo lagu darayo xalka biyaha ee aashitada chloro-acetic, falcelinta 2 saacadood, ka dibna kululaynta ilaa 80℃ si looga saaro ammonia-da hartay, midabaynta oo lagu daray kaarboon firfircoon, shaandheyn. Xalka midabaynta waxaa lagu daray 95% ethanol si glycine u noqoto mid crystallize ah, la sifeeyay, lagu dhaqay ethanol oo la qalajiyey si loo helo badeecada cayriin. Ku mil biyo kulul oo dib u warshadee ethanol si aad u hesho glycine. H2NCH2COOH ClCH2COOH [NH4HCO3] – > [NH4OH]

Intaa waxaa dheer, glycine waxaa sidoo kale laga soo saaraa hydrolysate-ka xariirta waxaana lagu shubaa gelatin ahaan walxo cayriin ah.

Codsiga:

Goobta cuntada

1, oo loo isticmaalo sidii walxaha kiimikada, waxaa sidoo kale loo isticmaali karaa daawada, quudinta iyo waxyaabaha lagu daro cuntada, warshadaha bacriminta nitrogen-ka oo loo isticmaalo sidii wakiilka decarbonizing-ka ee aan sunta ahayn;

2, oo loo isticmaalo kabitaan nafaqo, oo inta badan loo isticmaalo xawaash iyo dhinacyo kale;

3, waxay leedahay saameyn xakameyn ah oo ku saabsan taranka subtilis iyo Escherichia coli, sidaa darteed waxaa loo isticmaali karaa sidii ilaaliye loogu talagalay alaabada surimi, subagga looska, iwm., ku dar 1% ~ 2%;

4, waxay leedahay saameyn ka hortag ah (iyadoo la adeegsanayo iskaashiga chelate-ka birta ah), oo lagu daray kareemka, farmaajada, margarine-ku wuxuu kordhin karaa cimriga kaydinta 3 ~ 4 jeer;

5. Si loo xasiliyo dufanka dufanka leh ee ku jira cuntooyinka la dubay, waxaa lagu dari karaa gulukoos 2.5% iyo glycine 0.5%;

6. Ku dar 0.1% ~ 0.5% burka qamadiga si aad si dhakhso ah u kariso baasto, taas oo isla waqtigaas ka ciyaari karta door xawaash leh;

7, dhadhanka milixda iyo khalka ayaa door ka ciyaari kara kaydka, xaddiga alaabta milixda lagu daray 0.3% ~ 0.7%, alaabada aashitada 0.05% ~ 0.5%;

8, sida waafaqsan xeerarkayaga GB2760-96 waxaa loo isticmaali karaa dhir udgoon ahaan.

Beerta beeraha

1. Waxaa inta badan loo isticmaalaa wax lagu daro iyo soo jiidasho si loo kordhiyo asiidhyada amino ee quudinta digaagga, xoolaha, gaar ahaan xayawaanka rabaayada ah. Waxaa loo isticmaalaa sidii wax lagu daro borotiinka hydrolyzed, sida wakiilka isku-dhafka ah ee borotiinka hydrolyzed;

2, soo saarista sunta cayayaanka ee loo isticmaalo isku-darka sunta cayayaanka ee pyrethroid ee glycine ethyl ester hydrochloride dhexdhexaadka ah, waxaa sidoo kale lagu samayn karaa isobiurea fungicidal iyo glyphosate adag oo sunta cayayaanka ah.

Goobta warshadaha

1, oo loo isticmaalo sidii xal lagu dahaadho;

2, oo loo isticmaalo warshadaha dawooyinka, tijaabooyinka bayoolaji iyo isku-darka dabiiciga ah;

3, oo loo isticmaalo sidii walxo cayriin ah oo cephalosporin ah, sulfoxamycin dhexdhexaad ah, isku-darka aashitada imidazolacetic dhexdhexaad ah, iwm.;

4, oo loo isticmaalo sidii walxo ceeriin ah oo la isku qurxiyo.

Baakadda Alaabta: 25kg/bac

Kaydintu waa inay ahaataa meel qabow, qalalan oo hawo leh.