Sodium Bicarbonate, fomura yemamorekuru inonzi NAHCO₃，isanganiswa yezvinhu zvisingasanganisike, ine upfu huchena hwekristaro, haina hwema, ine munyu, inonyungudika nyore nyore mumvura. Inoora zvishoma nezvishoma mumhepo ine hunyoro kana mhepo inopisa, inoburitsa kabhoni dhayokisaidhi, uye inopisa kusvika 270 ° C inoora zvachose. Kana iri acidic, inoora zvakanyanya, ichiburitsa kabhoni dhayokisaidhi.
Sodium bicarbonate inoshandiswa zvakanyanya pakuongorora kemesitiri, kugadzira zvinhu zvisina kugadzirwa, kugadzirwa kwemaindasitiri, kugadzirwa kwekurima nekuchengeta mhuka.
Zvimiro zvemuviri:sodium bicarbonateikristaro chena, kana kuti makristaro emonocliplative asingaonekwe zvakanaka makristaro zvishoma, asina hwema, ane munyu mudiki uye anotonhorera, uye anonyungudika nyore nyore mumvura neglycerin, uye haanyungudike muethanol. Kunyungudika mumvura i7.8g (18℃), 16.0g (60℃), huwandu hwayo i2.20g/cm3, chiyero i2.208, refractive index iα: 1.465; β: 1.498; γ: 1.504, standard entropy 24.4J/(mol · K), inogadzira kupisa 229.3kj/mol, kupisa kwakanyungudutswa 4.33kj/mol, uye kupfuura kupisa simba (Cp) 20.89J/(mol·°C)(22°C).
Hunhu hwemakemikari:
1. Asidhi nealkaline
Mhinduro yemvura yesodium bicarbonate haina simba nekuda kwehydrolysis: HCO3-+H2O⇌H2CO3+OH-, 0.8%mhinduro yemvura pH kukosha ndeye 8.3.
2. Kuita neasidhi
Sodium bicarbonate inogona kuita neacid, senge sodium bicarbonate uye hydrochloride: nahco3+HCL = NaCl+CO2 ↑+H2O.
3. Kuita kune alkali
Sodium bicarbonate inogona kuita zvine alkali. Semuenzaniso, sodium bicarbonate uye sodium hydroxide reaction: nahco3+naOh = Na2CO3+H2O; uye calcium hydroxide reactions, kana huwandu hwesodium sodium bicarbonate hwakazara, pane: 2NAHCO3+CA (OH) 2 = CACO3 ↓+NA2CO3+2H2O;
Kana paine huwandu hushoma hwe sodium bicarbonate, pane: Nahco3+CA (OH) 2 = CACO3 ↓+Naoh+H2O.
4. Kuita kwemunyu
A. Sodium bicarbonate inogona kuwedzera kaviri hydrolysis nearuminiyamu chloride nearuminiyamu chloride, uye kugadzira aruminiyamu hydroxide, sodium munyu uye carbon dioxide.
3AHCO3+AlCl3 = Al (OH) 3 ↓+3ACL+3CO2 ↑; 3AHCO3+Al (CLO3) 3 = Al (OH) 3 ↓+3AClo3+3CO2 ↑.
B. Sodium bicarbonate inogona kuita zvimwe zvinhu zvine munyu wesimbi, zvakaita se: 2HCO3-+Mg2+= CO2 ↑+MgCo3 ↓+H2O.
5. Kuora kwechinhu nekupisa
Hunhu hwesodium bicarbonate hwakagadzikana pakupisa, uye zviri nyore kupwanyika. Hunoora nekukurumidza pakupisa kunopfuura 50 ° C. Pakupisa kwe270 ° C, kabhoni dhayokisaidhi inorasika zvachose. Hapana shanduko mumhepo yakaoma uye inoora zvishoma nezvishoma mumhepo ine hunyoro. Kuora Muenzaniso wekuita: 2NAHCO3NA2CO3+CO2 ↑+H2O.
Munda wekushandisa:
1. Kushandiswa murabhoritari
Sodium bicarbonateInoshandiswa seanalytical reagents uye inoshandiswawo pakugadzira inorganic. Inogona kushandiswa kugadzira sodium carbonate-sodium bicarbonate buffer solution. Kana ikawedzerwa acid shoma kana alkali, inogona kuchengetedza huwandu hwehydrogen ions pasina shanduko huru, izvo zvinogona kuchengetedza system pH value yakagadzikana.
2. Kushandiswa kwemaindasitiri
Sodium bicarbonate inogona kushandiswa kugadzira zvinodzima moto zvepH nezvidzimisi zvemoto zvefuro, uye sodium bicarbonate muindasitiri yerabha inogona kushandiswa kugadzira rabha nechiponji. Sodium bicarbonate muindasitiri yesimbi inogona kushandiswa sechinhu chinonyungudutsa zvinhu zvinoumba simbi. Sodium bicarbonate muindasitiri yemakanika inogona kushandiswa sechinhu chinobatsira pakuumba jecha resimbi (sandwiches). Sodium bicarbonate muindasitiri yekudhinda nekudhaya inogona kushandiswa sechinhu chinogadzirisa mavara, acid-base buffer, uye chinhu chinodhaya jira kumashure mukudhinda kwemavara; kuwedzera soda pakudhaya kunogona kudzivirira gauze mugauze. Kudzivirira.
3. Kushandiswa kwekugadzirisa chikafu
Mukugadzira chikafu, sodium bicarbonate ndiyo inonyanya kushandiswa kugadzira mabhisikiti nechingwa. Ruvara rwayo rune ruvara rweyero-brown. Ikabhoni dioxide muchinwiwa chine soda; inogona kusanganiswa nealum kusvika kualkaline fermented powder, kana kuti inogona kuumbwa nemacitromes se civil stone alkali; asiwo semushonga wekuchengetedza bota. Inogona kushandiswa semushonga wekupenda michero nemiriwo mukugadzira miriwo. Kuwedzera inenge 0.1% kusvika 0.2% yesodium bicarbonate pakusuka michero nemiriwo kunogona kudzikamisa girini. Kana sodium bicarbonate ikashandiswa semushonga wekurapa michero nemiriwo, inogona kuwedzera pH yemichero nemiriwo nekubika michero nemiriwo, izvo zvinogona kuwedzera pH yemichero nemiriwo, kuvandudza mvura yeprotein, kukurudzira kupfava kwemasero echikafu, uye kunyungudutsa zvinhu zvinopisa. Pamusoro pezvo, pane mhedzisiro pamukaka wembudzi, nehuwandu hwekushandiswa kwe0.001% ~ 0.002%.
4. Kurima nekuchengeta mhuka
Sodium bicarbonateinogona kushandiswa pakunyikwa kwemombe, uye inogonawo kutsiva kushomeka kwe lysine mukudya. Sodium bicarbonate inonyungudika mumvura shoma kana kusanganiswa mu concentrate kuti ipe nyama yemombe (huwandu hwakakodzera) kukurudzira kukura kwenyama yemombe. Inogonawo kuwedzera zvikuru kugadzirwa kwemukaka wemombe dzemukaka.
5. Kushandiswa pakurapa
Sodium bicarbonate inogona kushandiswa sechigadzirwa chemishonga, iyo inoshandiswa kurapa acid yakawanda yemudumbu, metabolic acid chepfu, uye inogonawo kuderedza alkaline weti kudzivirira uric acid stones. Inogona zvakare kuderedza chepfu yeitsvo yemishonga yesulfa, uye kudzivirira hemoglobin kuti isaungane mutubu reitsvo kana ikanyanya hemolysis, uye kurapa zviratidzo zvinokonzerwa neacid yakawanda yemudumbu; jekiseni remutsinga harina kunyanya kukonzerwa nehupfu hwemudumbu. Mugumisiro wekurapa. Musoro unoramba uchirwadza, kurasikirwa nechido chekudya, kuda kurutsa, kurutsa, nezvimwewo.
Chengeta uye kutakura: Sodium bicarbonate chinhu chisina njodzi, asi chinofanira kudzivirirwa kubva muhunyoro. Chengeta mutangi remhepo rakaoma. Usasanganisa neacid. Baking soda inodyiwa haifanirwe kusanganiswa nezvinhu zvine chepfu kudzivirira kusvibiswa.
Kurongedza: 25KG/Bhegi
Nguva yekutumira: Kurume-17-2023