Iindaba
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Yintoni umsebenzi we-isodium isethionate
I-Sodium isethionate yityuwa yendalo eyinxalenye ebalulekileyo kumayeza, izinto zokuthambisa kunye neekhemikhali zemihla ngemihla. I-Sodium isethionate, elinye igama elithi i-isethionic acid, ityuwa yesodium, i-cas 1562-00-1. I-Sodium isethionate yonyusa uzinzo lwefomyula, iphucula ukubola kwamanzi aqinileyo...Funda ngokugqithisileyo -
Yintoni eyenziwa yi-glycolic acid kulusu lwakho
Yintoni i-glycolic acid? I-Glycolic acid, ekwaziwa ngokuba yi-hydroxyacetic acid, yi-alpha-hydroxyl acid engenambala, engenavumba edla ngokufumaneka kwi-sugar mow. Inombolo ye-Cas yi-79-14-1 kwaye ifomula yayo yekhemikhali yi-C2H4O3. I-Glycolic acid inokwenziwa. I-Glycolic acid ithathwa njenge-hygroscop...Funda ngokugqithisileyo -
Yintoni i-polyglyceryl-4 oleate
Abathengi abaninzi babona ezinye izinto zokuthambisa eziqulethe “i-polyglyceryl-4 oleate” le khemikhali, bengacacanga ngokusebenza kunye nokusebenza kwale nto, bafuna ukuqonda ukuba imveliso equlethe i-polyglyceryl-4 oleate ilungile. Eli nqaku lazisa ngokusebenza, ukusebenza kunye nesiphumo se-polyglyceryl-...Funda ngokugqithisileyo -
Zeziphi izithako ezisebenzayo kwi-sunscreen
Ukukhuselwa lilanga yinto ebalulekileyo kubafazi banamhlanje unyaka wonke. Ukukhuselwa lilanga akupheleli nje ekunciphiseni umonakalo wemitha ye-ultraviolet eluswini, kodwa kukwathintela nokwaluphala kwesikhumba kunye nezifo zesikhumba ezinxulumene noko. Izithako ze-sunscreen zihlala zenziwe ngezinto ezibonakalayo, iikhemikhali, okanye umxube weentlobo zombini kunye...Funda ngokugqithisileyo -
Indlela yokuzikhusela elangeni ehlotyeni
Kule hlobo, ukuvezwa lilanga kunye nobushushu obuphezulu kufike ngokungalindelekanga, behamba endleleni, abantu abaninzi benxiba iimpahla zokukhusela ilanga, iminqwazi yelanga, iiambrela, iiglasi zelanga. Ukukhuselwa lilanga yinto engenakuphepheka ehlotyeni, eneneni, ukuvezwa akusayi kutshabalala nje kuphela, kutshiswe lilanga, kodwa kunokubangela ukwaluphala kwesikhumba,...Funda ngokugqithisileyo -
Yintoni i-silica dimethyl silylate
I-silica dimethyl silylate luhlobo lomzimba wamandulo we-seaweed calcium, luhlobo lwezinto zendalo zeminerali. Ikhuselekile kwaye ayinatyhefu, kwaye inamandla okufunxa amachiza ayo, anokufunxa iigesi eziyingozi, azibolise zibe yi-carbon dioxide engenabungozi emzimbeni womntu,...Funda ngokugqithisileyo -
Usuku olumnandi lukaMeyi
I-"May Day" yonyaka ifikile ngokuzolileyo. Kuzo zonke iikona zelizwe, abasebenzi ngezandla zombini bachaza uxanduva, ngegxalaba baxhasa uxanduva, ngesazela babhale ukuzinikela, ngokubila ukuchaza ubomi, sibulele kubantu abangaziwayo abazinikeleyo,...Funda ngokugqithisileyo -
Yintoni i-benzophenone-4 esetyenziselwa ukhathalelo lolusu
Ngoku abantu banokukhetha okuninzi ekunyamekeleni ulusu, izithako ze-sunscreen kuphela ziindidi ezingaphezu kwe-10, kodwa ezinye iimveliso zokhathalelo lolusu zibonakala ngathi ziya kulonakalisa ulusu lwethu. Ngoko ke singakhetha njani iimveliso zokhathalelo lolusu ezifanelekileyo kulusu lwethu? Masithethe nge-benzophenone-4, into ebalulekileyo...Funda ngokugqithisileyo -
Yintoni i-PCA Na
Ngophuhliso lwesayensi netekhnoloji yanamhlanje kunye nokuphuculwa kwemigangatho yokuphila yabantu, kubonakala ngathi iimfuno zezinto zokuhlobisa ziya zisanda, kwaye izinto zokuhlobisa ezinezithako zemvelo ziya zithandwa ngakumbi ngumntu wonke. Tod...Funda ngokugqithisileyo -
Yintoni elungileyo kwi-3-O-Ethyl-L-ascorbic acid
I-3-O-Ethyl-L-ascorbic acid ineempawu ezimbini zeoyile e-hydrophilic kwaye izinzile kakhulu ngokweekhemikhali. I-3-O-Ethyl-L-ascorbic acid, inombolo ye-cas 86404-04-8, ineempawu ze-oleophilic kunye ne-hydrophilic njenge-derivative ye-vitamin C, eyandisa ububanzi bayo bokusetyenziswa, ngakumbi kwi-chemistry yemihla ngemihla...Funda ngokugqithisileyo -
Yintoni iGlycyrrhizic Acid Ammonium Salt
Ityuwa ye-ammonium ye-Glycyrrhizic acid, ikristale yenaliti emhlophe okanye umgubo wekristale, inobumnandi obunamandla, imnandi ngokuphindwe ka-50 ukuya kwi-100 kune-sucrose. Iqondo lokunyibilika yi-208 ~ 212℃. Inyibilika kwi-ammonia, ayinyibiliki kwi-glacial acetic acid. Ityuwa ye-ammonium ye-Glycyrrhizic acid inobumnandi obunamandla kwaye iphantse ibe ngama-200...Funda ngokugqithisileyo -
Yintoni esetyenziselwa i-polyethylenimine
I-Polyethylenimine (PEI) yi-polymer enyibilikayo emanzini. Uxinzelelo emanzini kwiimveliso zorhwebo ludla ngokuba yi-20% ukuya kwi-50%. I-PEI yenziwe i-polymer kwi-ethylene imide monomer. Yi-polymer ye-cationic edla ngokubonakala njengolwelo olungenambala ukuya kolutyheli okanye oluqinileyo olunobunzima obahlukeneyo be-molecular...Funda ngokugqithisileyo