Bisfenol A/BPA Bisfenol A (BPA) Letlhare la Tlhaloso ya Setlhagiswa
Kakaretso ya Kumo
Kakaretso ya Kumo
Leina la Setlhagiswa: Bisphenol A (Khutshwafatso: BPA)
Fomula ya Khemikhale: C15H16O2
Nomoro ya CAS: 80-05-7
Nomoro ya EINECS: 201-245-8
Setlhopha sa Dikumo: Dikhemikhale tsa Ole; Ditswakwa tsa Maitirelo tsa Ditshedi
Ponagalo: Dikiristale tse ditshweu tse di tshwanang le nale kgotsa lorole lo losweu lo lo boleta (mofuta wa madirelo o ka lebega e le dilo tse di tiileng tsa dithoro)
Dipharologantsho tsa Sebopego le tsa Dikhemikhale
| Thoto | Tlhaloso |
|---|---|
| Bokete jwa Molekhule | 228,29 g/mol |
| Ntlha ya go Nyeletsa | 158-159 °C (316-318 °F) |
| Ntlha ya go Bela | 220 °C (428 °F) ka 4 mmHg (maemo a lolea) |
| Kitlano | 1.195 g/sm3 (25 °C) |
| Go tswakana | Ga e tlhotlhorege mo metsing; e e nwelelang mo ditlhaolosing tsa ditshedi (ka sekai, ethanole, asetone, benisine, toluene, le aseteite ya ethyl) |
| Ntlha ya Phatsimo | 227 °C (kopi e e tswetsweng) |
| Botsitso | E tlhomame ka fa tlase ga themperetšha e e tlwaelegileng le kgatelelo; e e bosisi mo leseding la ultraviolet (UV) (e ka nna ya senyega kgotsa ya fetoga mmala fa e nna mo leseding la UV ka nako e telele); tila go kopana le diokobatsi tse di maatla, diesiti le di-alkali |
Ditiriso tsa Motheo
Bisphenol A ke selo se se botlhokwa se se magareng mo go tlhagiseng dipolymer tse di dirang sentle thata le didirisiwa tsa madirelo, ka dikarolo tse di latelang tsa botlhokwa tsa tiriso:
Tlhagiso ya Polasetiki ya Polycarbonate (PC)
Jaaka sedirisiwa se se tala sa konokono sa polasetiki ya PC, BPA e kgontsha go dira dilo tse di sa thubegeng, tse di sa kgoneng go nna mogote tse di jaaka matlo a didirisiwa tsa ileketeroniki (dilaptop, di-smartphone), dikarolo tsa dikoloi (dikhurumetso tsa dipone tsa tlhogo, diphanele tsa ka fa teng), le ditshodi tse di amanang le dijo (tse di laolwang ke pabalesego mo dikgaolong tse dintsi).
Tshwaraganyo ya Resini ya Epokisi
E dirisiwa go tlhagisa diresin tsa epoxy tsa dikhurumetso (sekao, dikhurumelo tsa ka fa gare, dikhurumelo tsa madirelo tse di kgatlhanong le go bola), dikgomaretsi (dikgomaretsi tsa sebopego tse di nang le maatla a a kwa godimo tsa aerospace le kago), le didirisiwa tsa go thibela motlakase (diboto tsa potologo, di-winding tsa transformer).
Ditiriso tse dingwe tsa madirelo
Didirisiwa tse di tala tsa dipolyether (tse di dirisiwang mo difomong tsa polyurethane).
Tlaleletso mo dipolasetiki, dithibela-kgabo, le ditlhomamiso tsa UV tsa didirisiwa tsa polymer.
Magareng mo tshwaraganong ya dikhemikhale tse di kgethegileng (sekao, di-antioxidant, di-dyestuff).
Maemo a Boleng
Dihlahiswa tsa rona tsa Bisphenol A di dumellana le maemo a lefatshe ka bophara a indasteri le a polokeho, ka ditshupo tse tlwaelehileng tsa bohloeki le taolo ya ditshila ka tsela e latelang:
| Tshupane | Kereiti ya Intaseteri (e e Tlwaelegileng) | Mophato wa Reagent (Bophepa jo bo Kwa Godimo) |
|---|---|---|
| Bophepa (HPLC) | ≥ 99.5% | ≥ 99.8% |
| Diteng tsa Bongola | ≤ 0.1% | ≤ 0.05% |
| Diteng tsa Molora | ≤ 0.01% | ≤ 0.005% |
| Ditshila tsa Tshipi e e Bokete (Pb, Cd, Hg) | ≤ 10 dipipim | ≤ 1 ppm |
| Masalela a Phenol | ≤ 0.2% | ≤ 0.05% |
Ditlhaloso tse hlophisitsweng di fumaneha bakeng sa ditlhoko tse itseng tsa indasteri (mohlala, dikereiti tse tlase tsa leswe bakeng sa tlhahiso ya dintho tse amanang le dijo).
Dikaelo tsa Polokelo le Tshwaro
Go netefatsa botsitso jwa sedirwa le pabalesego ya tiriso, latela ditlhokego tseno tsa polokelo le go tshwara:
Maemo a Polokelo
Mogote: Boloka mo tikologong e e tsidifetseng, e e omileng ka 15–25 °C; tila mogote o o feteletseng (>30 °C) kgotsa go gatsela (
Lesedi: Dirisa ditshodi tse di sa bonaleng (sekao, mabotlolo a galase a a borokwa, meropa ya polasetiki ya HDPE e e nang le tshireletso ya UV) go thibela go senyega go go tlholwang ke UV.
Mongobo: Boloka mongobo o amanang
Ditlhokego tsa go Tswala
Boloka ditshodi di tswaletswe thata morago ga tiriso nngwe le nngwe go thibela go monyelwa ga bongola le kgotlelego. Tila go dirisa mekgwa ya go tswala ya nakwana (sekao, go phuthela ka polasetiki) e e ka bakang kgotlhelo ya sefapaano.
Ditlhokomelo tsa Pabalesego
Apara didiriswa tsa tshireletso ya botho (PPE): Maseke wa lerole, ditlelafo tse di sa tsenweng ke dikhemikhale, le digalase tsa pabalesego fa o tshwara (bogolo jang mo diforomong tsa lorole/ditlhaka).
Go tsenya mowa: Netefatsa kelelo e e siameng ya mowa mo mafelong a polokelo le go tshwara go tila go kokoana ga lerole kgotsa mouwane.
Go Tshwara Ditsholo: Phepafatsa ditsholo ka dilo tse di monyang tse di sa direng sepe (lefatshe la diatomaceous, khabone e e dirisiwang); latlha matlakala go ya ka melawana ya selegae ya dikhemikhale tse di kotsi.
Kobamelo ya Taolo
Dithibelo tsa Lefatshe Lotlhe: E tsamaisana le dithibelo tsa Molawana wa EU REACH (Mametlelelo XVII) ka ga BPA mo dilong tse di amanang le dijo (sekao, e e thibetsweng mo mabotlolong a go fepa masea).
US FDA: E fitlhelela dikaelo tsa FDA tsa tiriso ya BPA mo dikhurumelong tse di amanang le dijo le dipolasetiki (21 CFR 175.300).
Maemo a China: E tsamaisana le GB 4806.6 (maemo a pabalesego a diresini tsa polasetiki tse di amanang le dijo).
Go Phuthela le Botshelo jwa Shelofo
Ditlhopho tsa go Phuthela:
Mophato wa Madirelo: Dikgetsi tsa polasetiki tsa HDPE tsa 25 kg (tse di nang le di-liners tsa polyethylene tse di ka fa gare) kgotsa meropa ya faeba ya 500 kg (e e nang le foile ya aluminiamo).
Mophato wa Reagent: mabotlolo a galase a amber a 1 kg (a a tswaletsweng ka dikhurumelo tse di nang le mela ya Teflon).
Botshelo jwa Shelefo: dikgwedi di le 24 go tloga ka letlha la tlhagiso (fa e bolokilwe go ya ka maemo a a fa godimo, e sa bulwa).
Foromo ya Tlhatlhobo ya Boleng ya Bisphenol A
| Sesekaseki | Yuniti | Tlhaloso | Botso | Mokgwa wa Teko |
| Tebego | / | Tshweu e e nang le dithoro kgotsa e e phatlogileng, E e senang leswe la metšhini | Tshweu ya dithoro, Kwantle ga leswe la metšhini | 28113-2011 |
| Bisfenole A | Mo/% | ≥99.85 | 99,925 | 28113-2011 |
| Fenole | Mo/% | ≤0,005 | 0,001 | 28113-2011 |
| 2,4-Isomere | Mo/% | ≤0,050 | 0.01 | 28113-2011 |
| Ntlha ya Keresetale | °C | ≥156.6 | 157.2 | 28113-2011 |
| Khoroma e e Tlhakolositsweng | Mmala, Pt-Co (Yuniti ya Hazen) | ≤20 | 10 | 28113-2011 |
| Mmala wa Tharabololo | Mmala, Pt-Co (Yuniti ya Hazen) | / | 5 | 28113-2011 |
| Khawa | Mo/% | ≤0.08 | 0.02 | GB/T 6283-2008 |