Bisphenol A/BPA Bisphenol A (BPA) Xiphephana xa Swihlawulekisi swa Swikumiwa
Nkatsakanyo wa Swikumiwa
Nkatsakanyo wa Swikumiwa
Vito ra Xiendliwa: Bisphenol A (Xifunengeto: BPA)
Fomula ya Tikhemikhali: C15H12O2
Nomboro ya CAS: 80-05-7
Nomboro ya EINECS: 201-245-8
Xiyenge xa Swikumiwa: Tikhemikhali ta mafurha; Swihlanganisi swa Organic leswi Endliweke
Ku languteka: Ti crystals to basa leti fanaka na naliti kumbe powder yo basa leyinene (giredi ya indasitiri yinga vonaka tani hi swilo swo tiya swa granular)
Swihlawulekisi swa Xiviri & Tikhemikhali
| Nhundzu | Ku hlamuseriwa |
|---|---|
| Ndzilo wa Molekhuli | 228.29 g/mol |
| Ndhawu yo N’oka | 158–159 °C (316–318 °F) . |
| Ndhawu yo Vila | 220 °C (428 °F) eka 4 mmHg (xiyimo xa vacuum) . |
| Rendzo | 1,195 g/cm3 (25 °C) . |
| Ku n’oka | A yi n’oki ematini; yi n’oka eka swintshuxo swa organic (xikombiso, ethanol, acetone, benzene, toluene, na ethyl acetate) . |
| Ndhawu yo Pfuxeta | 227 °C (khapu leyi pfalekeke) . |
| Ku tshamiseka | Ku tshamiseka ehansi ka mahiselo ya ntolovelo na ntshikelelo; yi twa ku vonakala ka ultraviolet (UV) (yi nga ha onhaka kumbe ku cinca muhlovo loko yi ri ekusuhi ni UV nkarhi wo leha); papalata ku hlangana na ti oxidizers leti tiyeke, ti acids na ti alkali |
Switirhisiwa swa Nkoka
Bisphenol A i xitirhisiwa xa nkoka eka vuhumelerisi bya ti polymers ta matirhelo yale henhla na switirhisiwa swa indasitiri, na tinsimu ta nkoka ta matirhiselo leti landzelaka:
Vuhumelerisi bya Tipulasitiki ta Polycarbonate (PC)
Tanihi xitirhisiwa xo sungula xo ka xi nga tirhisiwanga eka pulasitiki ya PC, BPA yi endla leswaku ku endliwa switirhisiwa leswi nga tshovekiki, leswi nga hisiki swo fana na tindlu ta switirhisiwa swa elektroniki (tilaptop, ti-smartphone), swiphemu swa timovha (swifunengeto swa mavoni ya le mahlweni, tiphaneleni ta le ndzeni), na swibye leswi khumbaka swakudya (leswi lawuriwaka ku hlayiseka eka swifundzha swo tala).
Ku Endliwa ka Epoxy Resin
Yi tirhisiwa ku humelerisa ti epoxy resins ta swifunengeto (xikombiso, ti can inner linings, ti industrial anti-corrosion coatings), swinamarheti (swinamarheti swa xivumbeko swa matimba yale henhla swa aerospace na ku aka), na switirhisiwa swo pfalela gezi (ti circuit boards, transformer windings).
Matirhiselo Man’wana ya Tifeme
Switirhisiwa swo ka swi nga tirhisiwanga swa ti polyether polyols (leswi tirhisiwaka eka ti foam ta polyurethane).
Xiengeteri eka tipulasitiki, swisivela malangavi, na switiyisisi swa UV swa switirhisiwa swa polymer
Exikarhi eka ku endliwa ka tikhemikhali to hlawuleka (xikombiso, ti antioxidants, ti dyestuffs).
Swipimelo swa Khwalithi
Switirhisiwa swa hina swa Bisphenol A swi landzelela swipimelo swa misava hinkwayo swa tiindasitiri na vuhlayiseki, na swikombiso swa ntolovelo swa vulawuri bya ku basa na thyaka hi ndlela leyi landzelaka:
| Index | Giredi ya Tiindasitiri (Yi tolovelekile) . | Giredi ya Reagent (Ku basa ka le henhla) . |
|---|---|---|
| Ku basa (HPLC) . | ≥ 99.5% wa . | ≥ 99.8% wa . |
| Nhlayo ya Ndzilo | ≤ 0,1% . | ≤ 0,05% . |
| Vuxokoxoko bya Nsinya | ≤ 0,01% . | ≤ 0.005% . |
| Thyaka ra Nsimbi yo tika (Pb, Cd, Hg) . | ≤ 10 wa ppm | ≤ 1 wa ppm |
| Masalela ya Phenol | ≤ 0,2% . | ≤ 0,05% . |
Swihlawulekisi leswi endleriweke swilaveko swa indasitiri leswi endleriweke swilaveko swo karhi swa indasitiri (xikombiso, tigiredi ta thyaka ra le hansi ta vuhumelerisi bya switirhisiwa leswi khumbaka swakudya).
Swiletelo swa Vuhlayiselo & Ku Khoma
Ku tiyisisa ku tshamiseka ka swikumiwa na vuhlayiseki bya ntirho, landzelela swilaveko leswi swa vuhlayiselo na ku khoma:
Swiyimo swa Vuhlayiselo
Mahiselo: Hlayisa eka ndzhawu yo kufumela, yo oma eka 15–25 °C; papalata ku hisa lokukulu (>30 °C) kumbe ku titimela (
Ku vonakala: Tirhisa swibye leswi nga vonakiki kahle (xikombiso, mabodlhela ya nghilazi ya buraweni, swigubu swa pulasitiki swa HDPE leswi nga na nsirhelelo wa UV) ku sivela ku onhaka loku vangiwaka hi UV
Kutsakama: Hlayisa kutsakama loku ringanaka
Swilaveko swa ku Pfala
Hlayisa swibye swi pfariwile swinene endzhaku ka ku tirhisiwa kun’wana na kun’wana ku sivela ku amukeriwa ka ndzhongho na ku thyakisa. Papalata ku tirhisa tindlela to pfalela swa xinkarhana (xikombiso, ku phutsela hi pulasitiki) leswi nga vangaka ku thyakisa loku tsemakanyaka
Switsundzuxo swa Vuhlayiseki
Ambala switirhisiwa swo sirhelela (PPE): Xisirhelelo xa ntshuri, magilavu lama nga ngheniwiki hi tikhemikhali, na tinghilazi ta vuhlayiseki loko u khoma (ngopfu-ngopfu eka swivumbeko swa powder/granular).
Ku nghenisiwa ka moya: Tiyisisa leswaku moya wu khuluka kahle eka tindzhawu to hlayisa na ku khoma ku papalata ku hlengeletiwa ka ntshuri kumbe mpfula
Ku Khoma swilo leswi chuluriweke: Hlantswa swilo leswi halakeke hi swilo leswi nga tirhiki leswi monyaka (misava ya diatomaceous, khaboni leyi tirhisiweke); lahla thyaka hi ku landza milawu ya ndhawu ya tikhemikhali leti nga ni khombo
Ku Landzelela Milawu
Swipimelo swa Misava Hinkwayo: Swi landzelela swipimelo swa Nawumbisi wa EU REACH (Xiengetelo xa XVII) eka BPA eka switirhisiwa leswi khumbaka swakudya (xikombiso, swi yirisiwile eka mabodlhela yo phamela tincece).
FDA ya le United States: Yi fikelela swiletelo swa FDA swa ku tirhisiwa ka BPA eka swifunengeto leswi khumbaka swakudya na tipulasitiki (21 CFR 175.300).
Swipimelo swa China: Swi fambisana na GB 4806.6 (swipimelo swa vuhlayiseki bya ti-resin ta pulasitiki leti khumbaka swakudya).
Ku Pakiwa & Vutomi bya Xefe
Swihlawulekisi Swo Paka:
Giredi ya Tiindasitiri: 25 kg ya swikhwama swa pulasitiki swa HDPE (leswi nga na swifunengeto swa le ndzeni swa polyethylene) kumbe swigubu swa fibre swa 500 kg (leswi funengetiweke hi aluminium foil).
Giredi ya Reagent: 1 kg ya mabodlhela ya nghilazi ya amber (ya pfaleriwile hi swikepe leswi nga na Teflon-lined).
Vutomi bya Xefe: 24 wa tinhweti kusukela hi siku ra vuhumelerisi (loko yi hlayisiwile hiku landzelela swipimelo leswinga laha henhla, yinga pfuriwanga).
Fomo yo Kambela Khwalithi ya Bisphenol A
| Xihlamusela-marito | Yuniti | Ku hlamuseriwa | Mbuyelo | Ndlela yo Kambela |
| Xivumbeko | / . | White granular kumbe flaky, Handle ka thyaka ra michini | White granular, Handle ka thyaka ra michini | GB/T 28113-2011 |
| Bisphenol ya A | Endzeni/% | ≥99.85 | 99.925 | GB/T 28113-2011 |
| Phenol | Endzeni/% | ≤0.005 | 0.001 | GB/T 28113-2011 |
| 2,4-Isomer ya xirhendzevutani | Endzeni/% | ≤0.050 | 0.01 | GB/T 28113-2011 |
| Nhlayo ya Crystalline | °C | ≥156.6 | 157.2 | GB/T 28113-2011 |
| Chroma leyi n’okiweke | Muhlovo, Pt-Co (Yuniti ya Hazen) . | ≤20 | 10 | GB/T 28113-2011 |
| Ntlhantlho Chroma | Muhlovo, Pt-Co (Yuniti ya Hazen) . | / . | 5. 5. | GB/T 28113-2011 |
| Tsakama | Endzeni/% | ≤0.08 | 0.02 | GB/T 6283-2008 |