Isodium bicarbonate, i-molecular formula yi-NAHCO₃, i-inorganic compound, kunye ne-white crystalline powder, akukho vumba, ityuwa, kulula ukuyinyibilika emanzini. Ukubola kancinci kumoya ofumileyo okanye kumoya oshushu, velisa ikharbon diokside, kwaye ubushushu obufikelela kuma-270 ° C bubole ngokupheleleyo. Xa ineasidi, ibola ngamandla, ivelise ikharbon diokside.
I-sodium bicarbonate isetyenziswa ngokubanzi malunga nohlalutyo lwekhemistri, i-inorganic synthesis, imveliso yamashishini, imveliso yezolimo kunye nemfuyo.
Iimpawu ezibonakalayo:sodium bicarbonateyikristale emhlophe, okanye i-opaque monocliplative crystals ziikristale kancinane, ezingenavumba, zinetyuwa encinci kwaye zipholile, kwaye zinyibilika ngokulula emanzini nakwi-glycerin, kwaye azinyibiliki kwi-ethanol. I-solubility emanzini yi-7.8g (18℃), 16.0g (60 ℃), ubuninzi be-2.20g / cm3, umlinganiselo ngu-2.208, i-refractive index yi-α: 1.465; β: 1.498; γ: 1.504, i-entropy eqhelekileyo 24.4J / (mol · K), yenza ubushushu 229.3kj / mol, ubushushu obunyibilikayo 4.33kj / mol, kunye nomthamo oshushu (Cp) 20.89J / (mol · ° C) (22 ° C).
Iimpawu zekhemikhali:
1. I-Acid kunye ne-alkaline
Isisombululo samanzi se-sodium bicarbonate i-alkaline engenamandla ngenxa ye-hydrolysis: HCO3-+H2O⇌H2CO3+OH-, i-0.8% yesisombululo se-aqueous pH ixabiso yi-8.3.
2. Ukusabela ngeasidi
I-sodium bicarbonate inokusabela nge-asidi, njenge-sodium bicarbonate kunye ne-hydrochloride: nahco3 + HCL = NaCl + CO2 ↑ + H2O.
3. Ukusabela kwi-alkali
I-sodium bicarbonate inokusabela ngealkali. Ngokomzekelo, i-sodium bicarbonate kunye ne-sodium hydroxide reaction: nahco3 + naOh = Na2CO3 + H2O; kunye neempendulo ze-calcium hydroxide, ukuba inani le-sodium bicarbonate ye-sodium ligcwele, kukho: 2NAHCO3 + CA (OH) 2 = CACO3 ↓+NA2CO3 + 2H2O;
Ukuba kukho umlinganiselo omncinci we-sodium bicarbonate, kukho: Nahco3+CA (OH) 2 = CACO3 ↓+Naoh+H2O.
4. Ukusabela kwityuwa
A. I-sodium bicarbonate inokuphinda kabini i-hydrolysis kunye ne-aluminium chloride kunye ne-aluminium chloride, kwaye ivelise i-aluminium hydroxide, ityuwa yesodium kunye ne-carbon dioxide.
3AHCO3+AlCl3 = Al (OH) 3 ↓+3ACL+3CO2 ↑; 3AHCO3+Al (CLO3) 3 = Al (OH) 3 ↓+3AClo3+3CO2 ↑.
B. I-sodium bicarbonate inokusabela kunye nezisombululo ezithile zetyuwa zentsimbi, ezifana: 2HCO3-+Mg2+= CO2 ↑+MgCo3 ↓+H2O.
5. Ukubola ngobushushu
Ubume be-sodium bicarbonate buzinzile kwiqondo lokushisa, kwaye kulula ukuphuka. Ichithwa ngokukhawuleza ngaphezu kwe-50 ° C. Kwi-270 ° C, i-carbon dioxide ilahlekile ngokupheleleyo. Akukho tshintsho kumoya owomileyo kwaye ngokucothayo ukubola kumoya ofumileyo. Ukubola Inxaki yokusabela: 2NAHCO3NA2CO3+CO2 ↑+H2O.
Indawo yesicelo:
1. Ukusetyenziswa kwelebhu
I-sodium bicarbonateisetyenziswa njengeejenti zokuhlalutya kwaye ikwasetyenziselwa i-inorganic synthesis. Ingasetyenziselwa ukulungisa isisombululo se-sodium carbonate-sodium bicarbonate buffer. Xa ukongeza inani elincinci le-asidi okanye i-alkali, inokugcina ukuxinwa kwee-ion ze-hydrogen ngaphandle kotshintsho olubalulekileyo, olunokugcina ixabiso le-pH lenkqubo lizinzile.
2. Ukusetyenziswa kwemizi-mveliso
Isodium bicarbonate ingasetyenziselwa ukuvelisa izicimi-mlilo ze-pH kunye nezinto zokucima umlilo ezinogwebu, kunye nebicarbonate yesodium kushishino lwerabha ingasetyenziselwa ukuveliswa kwerabha kunye nesipontshi. I-sodium bicarbonate kwishishini le-metallurgical ingasetyenziswa njenge-ejenti yokunyibilika yokuphosa iingots zetsimbi. I-sodium bicarbonate kwishishini lomatshini lingasetyenziswa njengomncedisi wokubumba kwintsimbi etyhidiweyo (isandwich) isanti. Ibicarbonate yesodium kushishino loshicilelo nokudaya ingasetyenziswa njenge arhente yokulungisa umbala, i-acid-base buffer, kunye nelaphu lokudaya iarhente yonyango yangasemva ekushicileleni ibala; ukongeza i-soda ekudayeni kunokuthintela i-gauze kwi-gauze. Uthintelo.
3. Ukusetyenziswa kokulungiswa kokutya
Kwinkqubo yokutya, i-sodium bicarbonate yeyona agent ekhululekileyo isetyenziswa kakhulu esetyenziselwa ukuvelisa iibhiskithi kunye nesonka. Umbala utyheli-mdaka. Yicarbon dioxide kwisiselo sesoda; inokudityaniswa ne-alum ukuya kwi-alkaline fermented powder, okanye inokuqulunqwa ngeecitromes njengealkali yamatye aqhelekileyo; kodwa kwakhona njengearhente yokugcina ibhotolo. Ingasetyenziswa njenge arhente yombala weziqhamo kunye nemifuno kwimveliso yemifuno. Ukongeza malunga ne-0.1% ukuya kwi-0.2% ye-sodium bicarbonate xa uhlamba iziqhamo kunye nemifuno kunokuzinzisa uhlaza. Xa i-sodium bicarbonate isetyenziswa njenge-arhente yonyango lweziqhamo kunye nemifuno, inokunyusa ixabiso le-pH leziqhamo kunye nemifuno ngokupheka iziqhamo kunye nemifuno, enokunyusa ixabiso le-pH yeziqhamo kunye nemifuno, iphucule ukugcinwa kwamanzi kwiprotheni, ikhuthaze ukuthambisa kweeseli zethishu zokutya, kunye nokunyibilikisa amacandelo e-astringent. Ukongeza, kukho impembelelo kubisi lwebhokhwe, kunye nesixa sokusetyenziswa kwe-0.001% ~ 0.002%.
4. Ezolimo kunye nemfuyo
I-sodium bicarbonateingasetyenziselwa ukufunxwa kwezolimo, kwaye inokwenza ukungabikho komxholo we-lysine kwisondlo. I-sodium bicarbonate enyibilikayo kumlinganiselo omncinci wamanzi okanye ixube kwi-concentrate ukondla inyama yenkomo (isixa esifanelekileyo) ukukhuthaza ukukhula kwenkomo. Isenokwandisa kakhulu imveliso yobisi kwiinkomo zobisi.
5. Ukusetyenziswa kwezonyango
Isodium bicarbonate ingasetyenziswa njengento ekrwada kumayeza, esetyenziselwa ukunyanga iasidi egqithisileyo yesisu, ityhefu ye-metabolic acid, kwaye ingasebenzisa nomchamo wealkaline ukunqanda amatye e-uric acid. Kwakhona kunokunciphisa ityhefu yezintso zamachiza e-sulfa, kwaye ithintele i-hemoglobin ukuba ifakwe kwi-renal tubular xa i-hemolysis ebukhali, kwaye iphathe iimpawu ezibangelwa yi-asidi yesisu esigqithisileyo; Isitofu esifakwe emithanjeni asiyodwanga kwityhefu yeziyobisi Isiphumo sonyango. Intloko eqhubekayo, ukulahlekelwa ngumdla, isicaphucaphu, ukuhlanza, njl.
Ukugcinwa kunye nokuthutha inqaku: I-sodium bicarbonate yimveliso engeyongozi, kodwa kufuneka ikhuselwe kumswakama. Gcina kwitanki eyomileyo yokungenisa umoya. Musa ukudibanisa neasidi. Isoda yokubhaka etyiwayo akufuneki ixutywe nezinto ezinetyhefu ukunqanda ungcoliseko.
Ukupakisha: 25KG / BAG
Ixesha lokuposa: Mar-17-2023