Aluminium monostearate CAS 7047-84-9 Assay (Al2O3) 14.5 ~ 16.5%

Aluminium monostearate
Dihydroxy(stearato) aluminium [7047-84-9].
Aluminium Monostearate waa ka samaysan aluminium oo leh isku dhafka asiidhyada organic adag ee laga helo dufanka, waxayna ka kooban tahay inta ugu badan ee qiyaasaha kala duwan ee aluminium monostearate iyo aluminium monopalmitate.Waxay ka kooban tahay wax u dhigma oo aan ka yarayn 14.5 boqolkiiba oo aan ka badnayn 16.5 boqolkiiba Al2O3, oo lagu xisaabiyo saldhigga qallalan.
Baakadaha iyo kaydinta- Ku kaydi weelasha si fiican u xidhan.
Aqoonsiga -
A: Kuleyli 1 g oo leh isku dar ah 25 mL oo biyo ah iyo 5 mL oo hydrochloric acid ah 1 saac, bedelida biyaha marka ay uumi baxayaan: asiidhyada dufanka leh ayaa la xoreeyaa, sabeynaya sida lakabka saliidda leh ee dusha sare ee dareeraha, iyo biyaha lakabka ayaa ka jawaabaya imtixaanada aluminium <191>.
B: Isku qas 25 g oo ah 100 ml oo ether ah oo ku jira weel 500-mL ah, ku dar 150 mL oo ah 3 N hydrochloric acid, ku xidh kondenser biyo qaboojiye, oo kulayl qubeyska uumiga hoostiisa 15 daqiiqo.Qabooji, oo ku wareeji labada lakab ee kala soocida adigoo kaashanaya 100 ml oo ether ah oo dheeri ah.Si xoog leh u rux, oo u ogolow lakabyada inay kala tagaan.Ka saar lakabka biyaha, oo ku dhaq lakabka ether saddex qaybood oo biyo ah 30-mL.Ku wareeji lakabka etherka digsi yar, ku diiri qubeyska uumiga ilaa etherku uumi baxayo asiidhyada dufankuna ay cad yihiin, oo qalaji asiidhyada 105 ° 20 daqiiqo: heerkulka adkeynta (eeg Dufanka iyo Saliidaha go'an 401) ee asiidh dufanku kama hoos hoosayso 54°.
Luminta qalajinta <731> -Ku qalaji 80 ilaa 16 saacadood: waxay luminaysaa wax aan ka badnayn 2.0% miisaankeeda.
Arsenic, Habka I <211>-U diyaari Diyaarinta Imtixaanka sida soo socota.Ilaa 3.75 g ku dar 12.5 ml oo ah hydrochloric acid iyo 0.5 mL oo bromine TS ah, oo kulayl qubeyska uumiga ilaa lakabka hufan ee aashitada dufanka leh dhalaalisay.Ku dar 50 ml oo biyo ah, kuleyli saxan kulul ilaa mugga uu yahay ilaa 25 ml, oo miir inta uu kulul yahay.Qabow, ku milmi sifaynta biyaha ilaa 50 mL, iyo 10-mL aliquot ee xalkan ku dar 2.5 mL oo ah hydrochloric acid, ka dibna ku qas biyo ilaa 55 mL: xalinta natiijada waxay buuxisaa shuruudaha imtixaanka, ku darida 20 mL oo ah 7 N sulfuric acid oo loo cayimay Habraaca laga saaray.Xadku waa 4 ppm.
Biraha culus-Illaa 2 g oo ku jira weel 250-mL ah ku dar 20 ml oo biyo ah iyo 10 ml oo ah hydrochloric acid.Dhig maro yar oo qoorta galaaska, oo si tartiib ah u karkari, beddelka biyaha marka ay uumi baxayaan, ilaa ay asiidh dufanku kala soocaan lakab cad.Si degdeg ah u qabooji adigoo ku wareegaya qulqulka biyaha qabow hoostooda ilaa aysiidhka dufanku ka adkaadaan.Ku nadiifi shaandhada hore loogu maydhay 3 N hydrochloric acid, ku dhaq ilaa shaandhada la isku daray iyo maydhista ay cabbiraan 50 mL, oo ​​qas.Ilaa 20 ml oo ah sifaynta la isku daray ku dar 6 N ammonium hydroxide, hoos u dhig, ilaa uu ka samaysmo turbidity joogto ah.Ku dar 1 N acetic acid ilaa uu daadadku uun milmo, ka dibna ku dar 2 mL oo dheeraad ah, oo ku dar biyo si aad u samayso 40 ml.Ku dar 1.2 mL oo ah thioacetamide-glycerin saldhigga TS iyo 2 mL ee pH 3.5 Acetate Buffer, oo u oggolow inaad istaagto 5 daqiiqo: midab kasta oo bunni ah oo la soo saaro kama madow midka kan xalinta xakamaynta ee laga diyaariyey 10 mL ee shaandhada la isku daray iyo 2 mL ee Xalinta Lead Heerka (eeg Biraha culus <231>) oo ka kooban 10 µg oo rasaas ah halkii ml, ka dibna lagu qasi jiray biyo ilaa 20 mL oo loola dhaqmo si la mid ah.Xadka waa 50 µg halkii g.
Assay-Si sax ah u miisaama 5 g oo Aluminium Monostearate ah oo ku jira qolof platinum daboolan oo hore loo shiday 20 daqiiqo, lagu qaboojiyey magnesium perchlorate anhydrous, oo la miisaamay.Si tartiib ah u kululee weelka furan, adoon u oggolaan in muunada uu olol kaco, oo si tartiib ah u kordhi kulaylka ilaa dambasku caddaanayo.Shidi dambaska 20 daqiiqo ka dib marka la saaro walxaha dabiiciga ah, oo qabow.Ku dar 15 ml oo biyo ah, ku dabool weelka galaas yar oo saacad ah, oo si tartiib ah u karkari ilaa 5 daqiiqo, adoo isticmaalaya usha yar ee walaaqaya si aad u jebiso burooyinki waaweyn ee dambaska.Ku nadiifi xalka adigoo isticmaalaya warqad shaandhaysa aan dambas lahayn, adigoo ilaalinaya inta badan dambaska ku jira weelka.Ku celi soo saarista biyo laba jeer, adigoo u gudbiya xalalka isla shaandhaynta.Ku wareeji dambaska shaandhada adigoo isticmaalaya durdur biyo ah, oo ku dhaq weelka iyo haraaga saddex jeer biyo diirran.Ku wareeji xaashida shaandhada iyo hadhaagii qoloflaha, qallaji, oo shid 20 daqiiqo ka dib marka warqaddu gubto.Xilliga dabka ka dib, dabool weelka, ku qabooji magnesium perchlorate anhydrous ah ilaa 15 daqiiqo, oo si degdeg ah u miisaan hadhaaga Al2O3.Ku soo celi dabka ilaa inta miisaanka joogtada ah laga helayo, adoo isticmaalaya 20-daqiiqo wakhtiyada dabka iyo 15-daqiiqo qaboojin.Laga soo bilaabo culeyska hadhaaga ku haray weelka, xisaabi waxa ku jira Al2O3.