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 zemichiza:
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, iphucula i-protein yamanzi, ikhuthaze ukuthambisa. yeeseli zethishu zokutya, kwaye unyibilikise 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.
Inqaku lokugcina kunye nokuthutha: I-sodium bicarbonate yimveliso engeyongozi, kodwa kufuneka ikhuselwe kumswakama.Gcina kwitanki eyomileyo yokungenisa umoya.Musa ukudibanisa neasidi.Isoda yokubhaka etyiwayo akufunekanga ixutywe nezinto ezinetyhefu ukunqanda ungcoliseko.
Ukupakisha: 25KG / BAG
Ixesha lokuposa: Mar-17-2023