Lok angeya
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Bisphenol A BPA ki coyo nining?
Neno lok ma mako Bisphenol A BPA ma ki yubu i mwaka 1936 ma calo estrogen ma ki yubu, bisphenol A (BPA) dong ki yubu ki wel ma kato 6 billion paun. Bisphenol A BPA pol kare ki tiyo kwede me gedo jami ma ki lwongo ni polycarbonate plastics, ma nonge i jami ma calo b...Kwan mukene -
Ngo ma tye tic pa bisphenol A?
polycarbonate ki epoxy resins. Ki tiyo kwede bene i yubu jami ma ki yubu ki jami ma ki lwongo ni polysulfone, kacel ki tetrabromobisphenol A, ma pol kare ki tiyo kwede me gengo mac. Polycarbonate (gin ma tiyo ki bisphenol A madwong loyo) tye gin ma pe ki mit, pe ki ngwec, pe ki kwiri, ki tran...Kwan mukene -
gin ango ma bisphenol a bpa tiyo kwede?
Bisphenol a bpa ki tiyo kwede i yubu jami ma pat pat, calo epoxy resins, polycarbonates, polysulfones, phenolic unsaturated resins, polyphenylene ether resins, polyaryl compounds, polyetherimides, tetrabromobisphenol A, PVC heat stabilizers, rubercuidants, agricuidants...Kwan mukene -
Boiling temperature pa bisphenol a tye adi?
Bisphenol A (BPA), ma ki ngeyo bene ni diphenylolpropane onyo (4-hydroxyphenyl)propane, yubu gin ma ki lwongo ni prismatic crystals i diluted ethanol ki needle-like crystals i pii. Tye ma lyel ki tye ki ngwec manok. Ka ma mol iye tye 157.2°C, ka lyel tye 79.4°C, ki ka lyel pa bisphenol a tye 2...Kwan mukene -
Bisphenol A obedo ngo?
Bisphenol A (bpa) Ngec ma pire tek Bisphenol A, ma ki ngeyo bene ni BPA, tye gin ma ki yubu ki jami makwo ma tye ki rwom me C1₁H₁₆O₂. I tic me yubu jami, ki tiyo kwede me yubu jami ma calo polycarbonate (PC) ki epoxy resins. Cake i mwaka 1960, BPA obedo ka tic kwede me yubu jami ma ki lwongo ni plast...Kwan mukene -
Kit me tic ki gin ma kwanyo kala ma ki lwongo ni sodium hydrosulfite nining?
Kit me kwanyo rangi ma ki keto i kom bongo makwar Kit me keto i cup ma ki lwongo ni Sodium hydrosulfite Ka tye ki rangi ma ki keto i kabedo moni, tii ki cup ma ki keto i pii. Ony pii ma lyet manok (ma kato 90°C) i kikopo ni. Med sodium hydrosulfite (ma romo 2.5%) ki rub ne wek olok. Imer...Kwan mukene -
Kit ma sodium dithionite tye kwede obedo ngo?
Kit ma kome nen kwede: Sodium dithionite ki keto calo gin ma twero lyel i rwom me acel. Ki ngeyo bene ni Rongalite I lok me cato wil, tye i kit aryo: Na2S2O4·2H2O ki Na2S2O4 ma pe ki pii. Mukwongo ni obedo gin ma nen maber, ma lacen ni obedo buru ma yelo. Pek ne ma rwate ki...Kwan mukene -
Gin ma dwoko piny: Sodium Hydrosulfite
Gin ma dwoko piny: Sodium Hydrosulfite Nying gin ma ki lwongo ni: Sodium dithionite. Ka kiporo ki jami ma weko yamo bedo maleng, sodium hydrosulfite kelo peko manok i kom bongo. Ki twero tic kwede i kom bongo ma ki yubu ki jami ma pat pat labongo kelo peko, pi meno ki keto nying ni "hydrosulfite" (ma nyutu ni ber). En...Kwan mukene -
Tic pa sodium hydrosulfite i kom bongo ma ki yubu ki bongo obedo ngo?
Jami ma rwate pi sodium hydrosulfite sodium hydrosulfite ber pi jami ma pat pat ma ki yubu ki bongo, pi meno ki keto nyinge ni "Rongalite." Ka kitiyo kwede me lwoko bongo i lyeto ma malo onyo kwanyo rangi, bongo ni omyera obed ma twero diyo lyeto ma malo labongo balo ne. I kom lok me moko ni...Kwan mukene -
Peko ango ma bino pi sodium hydrosulfite?
Sodium hydrosulfite tye ki kwiri ki twero balo wang ki yoo me yweyo. Ki tiyo kwede i tic me yubu bongo me loko rangi, lwoko bongo, goyo cal, kwanyo rangi, ki yubu bongo ma ki lwongo ni silk, wool, nylon, ki bongo mukene. Kit ma pe tye ki jami ma pek, bongo ma ki yubu ki...Kwan mukene -
Ngo ma obi time ka sodium hydrosulfite ki keto i yamo?
Ka ki keto i yamo, sodium hydrosulfite kwanyo oxygen oyoto ki doko oxidize. En bene kwanyo pii, ma kelo lyeto ki kelo balo. Twero ribbe kacel nongo tye ka nongo yamo ma tye i yamo ki miyo ngwec ma lyet. Na₂S₂O₄ + 2H₂O + O₂ → 2NaHSO₄ + 2[H] Lyeto onyo nyutu...Kwan mukene -
Ngo ma tye i kom gin ma ki lwongo ni sodium hydrosulfite?
Kit ma Sodium hydrosulfite nen kwede Sodium hydrosulfite ki poko calo gin ma twero lyel ma twero lyel ki yamo, ma ki ngeyo bene ni sodium dithionite. Ki nongo ne i yoo aryo: ma ki keto iye pii (Na2S2O4·2H2O) ki ma pe ki pii iye (Na2S2O4). Gin ma ki keto iye pii nen calo got ma ler ma ler...Kwan mukene