Labarai
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Ta yaya ake taƙaita bisphenol A BPA?
Bayani Kan Bisphenol A BPA An fara samar da bisphenol A (BPA) a shekarar 1936 a matsayin estrogen na roba, yanzu ana ƙera bisphenol A (BPA) a girman da ya wuce fam biliyan 6 a kowace shekara. Ana amfani da Bisphenol A BPA a matsayin tubalin gini don robobi na polycarbonate, waɗanda ake samu a cikin kayayyaki kamar su baby b...Kara karantawa -
Menene amfanin bisphenol A ga jiki?
resin polycarbonate da epoxy. Ana kuma amfani da shi wajen kera manyan robobi na injiniya kamar polysulfone, da kuma tetrabromobisphenol A, wanda ake amfani da shi sosai a matsayin maganin hana harshen wuta. Polycarbonate (mafi yawan masu amfani da bisphenol A) ba shi da ɗanɗano, ba shi da ƙamshi, ba shi da guba, kuma ba shi da...Kara karantawa -
Menene amfani da bisphenol a bpa?
Ana amfani da Bisphenol a bpa sosai wajen samar da kayan polymer daban-daban, kamar su epoxy resins, polycarbonates, polysulfones, phenolic unsaturated resins, polyphenylene ether resins, polyaryl compounds, polyetherimides, tetrabromobisphenol A, PVC zafi stabilizers, roba antioxidants, agricu...Kara karantawa -
Menene wurin tafasa na bisphenol A?
Bisphenol A (BPA), wanda aka fi sani da diphenylolpropane ko (4-hydroxyphenyl)propane, yana samar da lu'ulu'u masu kama da prismatic a cikin ethanol mai narkewa da lu'ulu'u masu kama da allura a cikin ruwa. Yana da ƙonewa kuma yana da ɗan ƙamshi mai kama da phenolic. Wurin narkewarsa shine 157.2°C, wurin walƙiya shine 79.4°C, kuma wurin tafasa na bisphenol A shine 2...Kara karantawa -
Menene Bisphenol A?
Bisphenol A (bpa) Bayani na Asali Bisphenol A, wanda aka fi sani da BPA, wani sinadari ne na halitta wanda ke da dabarar kwayoyin halitta C₁₅H₁₆O₂. A fannin masana'antu, ana amfani da shi wajen samar da kayayyaki kamar polycarbonate (PC) da resin epoxy. Tun daga shekarun 1960, ana amfani da BPA wajen kera filastik...Kara karantawa -
Yaya ake amfani da sinadarin cire launi na sodium hydrosulfite?
Hanyar Cire Tabo a Gida don Tufafin Fari Hanyar Jika Kofin Sodium hydrosulfite Idan akwai tabo a gida, yi amfani da kofi mai kauri don jiƙawa. Zuba wani adadin ruwan zafi (sama da 90°C) a cikin kofin. Sai a zuba sodium hydrosulfite (mai yawa kusan 2.5%) sannan a juya don narkewa. A niƙa...Kara karantawa -
Menene siffofin wanzuwar sodium dithionite?
Sifofin Jiki: Sodium dithionite an rarraba shi a matsayin abu mai ƙonewa na Grade 1. Haka kuma an san shi da Rongalite a fannin kasuwanci, yana wanzuwa a cikin nau'i biyu: Na₂S₂O₄·2H₂O da kuma Na₂S₂O₄ mai hana ruwa. Na farko farin lu'ulu'u ne mai kyau, yayin da na biyun foda ne mai launin rawaya mai haske. Yawansa yana da alaƙa da...Kara karantawa -
Wakili Mai Rage Ragewa: Sodium Hydrosulfite
Maganin Rage Ragewa: Sodium Hydrosulfite Sunan Sinadarin: Sodium dithionite. Idan aka kwatanta da sinadaran oxidizing, sodium hydrosulfite ba ya haifar da lahani sosai ga masaku. Ana iya amfani da shi akan masaku da aka yi da zare daban-daban ba tare da haifar da lahani ba, shi ya sa ake kiransa "hydrosulfite" (yana nufin amincinsa). Yana...Kara karantawa -
Menene rawar da sodium hydrosulfite ke takawa a cikin zaruruwan yadi?
Zare masu dacewa don sodium hydrosulfite sodium hydrosulfite ya dace da zare masu yadi daban-daban, shi ya sa aka sanya masa suna "Rongalite." Idan ana amfani da shi don yin bleach ko cire tabo mai zafi, zare masu yadi dole ne su iya jure yanayin zafi mai zafi ba tare da lalacewa ba. Dangane da takaddun shaida...Kara karantawa -
Mene ne haɗarin sodium hydrosulfite?
Sodium hydrosulfite yana da guba kuma yana iya fusata idanu da kuma mucosa na hanyoyin numfashi. Ana amfani da shi sosai a masana'antar yadi don rage rini, rage tsaftacewa, bugu, canza launi, da kuma yin bleach na siliki, ulu, nailan, da sauran yadi. Ganin cewa ba ya dauke da karafa masu nauyi, an yi masa bleach da...Kara karantawa -
Me zai faru idan aka fallasa sodium hydrosulfite ga iska?
Idan aka fallasa shi ga iska, sodium hydrosulfite yana shan iskar oxygen cikin sauƙi kuma yana yin oxidizes. Hakanan yana shan danshi, yana haifar da zafi kuma yana haifar da lalacewa. Yana iya taruwa tare yayin da yake shan iskar oxygen a yanayi kuma yana fitar da ƙamshi mai kauri. Na₂S₂O₄ + 2H₂O + O₂ → 2NaHSO₄ + 2[H] Dumama ko fallasa...Kara karantawa -
Menene halayen zahiri na sodium hydrosulfite?
Sifofin Halitta na Sodium Hydrosulfite An rarraba Sodium hydrosulfite a matsayin wani abu mai kama da na Grade 1 mai saurin kamuwa da danshi, wanda kuma aka sani da sodium dithionite. Ana samunsa a kasuwa a nau'i biyu: mai laushi (Na₂S₂O₄·2H₂O) da kuma mai ruwa (Na₂S₂O₄). Siffar mai ruwa tana bayyana kamar farin kurji mai kyau...Kara karantawa