Sodium Bicarbonate | 144-55-8 ib
Khoom Description
Sodium bicarbonate yog ib qho tshuaj sib xyaw ua ke, uas feem ntau hu ua ci dej qab zib, khob cij soda, ua noj dej qab zib thiab bicarbonate ntawm dej qab zib. Cov tub ntxhais kawm ntawm kev tshawb fawb thiab chemistry kuj tau hu ua sodium bicarbonate li sodium bicarb, bicarb soda. Qee zaum nws kuj tseem hu ua bi-carb. Lub npe Latin rau sodium bicarbonate yog Saleratus, uas txhais tau tias, 'aerated ntsev'. Sodium bicarbonate yog ib feem ntawm cov pob zeb hauv av Natron, tseem hu ua Nahcolite uas feem ntau pom muaj nyob hauv cov pob zeb hauv av, tsuas yog qhov chaw ntawm sodium bicarbonate.
Kev siv ua noj: Sodium bicarbonate qee zaum siv los ua zaub ua noj, ua rau lawv softer, txawm hais tias qhov no tau tawm ntawm kev zam, vim tam sim no cov neeg feem coob nyiam cov zaub firmer uas muaj cov as-ham ntxiv. Txawm li cas los xij, nws tseem yog siv nyob rau hauv Asian cuisine rau tenderize nqaij. Baking soda tej zaum yuav hnov mob nrog cov kua qaub hauv cov zaub mov, suav nrog Vitamin C (L-Ascorbic Acid). Nws kuj yog siv rau hauv breadings xws li rau cov khoom noj kib los txhim kho crispness. Thermal decomposition ua rau sodium bicarbonate ib leeg los ua tus neeg sawv cev los ntawm kev tso carbon dioxide ntawm qhov kub thiab txias. Kev tsim cov pa roj carbon dioxide pib ntawm qhov kub siab tshaj 80 ° C. Kev sib xyaw rau cov ncuav qab zib uas siv cov qauv no tuaj yeem tso cai sawv ntsug ua ntej ci yam tsis muaj kev tso tawm ntxov ntawm carbon dioxide.
Kev siv tshuaj kho mob: Sodium bicarbonate yog siv rau hauv cov tshuaj aqueous raws li cov tshuaj tiv thaiv kab mob hauv qhov ncauj los kho cov kua qaub plab thiab kub siab. Nws kuj tseem tuaj yeem siv rau hauv daim ntawv ntawm qhov ncauj los kho cov kab mob metabolic acidosis xws li mob raum tsis ua haujlwm thiab lub raum tubular acidosis. Sodium bicarbonate kuj tseem yuav pab tau rau hauv cov zis alkalinization rau kev kho mob ntawm cov tshuaj aspirin overdose thiab uric acid raum pob zeb. Nws yog siv los ua cov tshuaj muaj nyob rau hauv gripe dej rau cov me nyuam mos.
Specification
| Yam khoom | Specifications |
| Qhov tshwm sim | Dawb crystalline hmoov |
| Assay (qhuav Basis, %) | 99.0-100.5 Nws |
| pH (1% daws) | = <8.6 |
| Loss ntawm ziab (%) | = <0.20 |
| Chlorides (Cl,%) | = <0.50 |
| Ammonia | Pass xeem |
| Insoluble tshuaj | Pass xeem |
| Dawb (%) | > = 85 |
| Lead (Pb) | = <2 mg/kg |
| Arsenic (As) | = <1 mg/kg |
| Heavy Hlau (raws li Pb) | = <5 mg/kg |
