Bisphenol A/BPA Bisphenol A (BPA) Pepa lyaamba zyachintu
Kulanga-langa zintu
Kulanga-langa zintu
Zina lyachintu: Bisphenol A (Chifwiifwi: BPA)
Fomula yamakemikalu: C₁₅H₁₆O₂
Namba ya CAS: 80-05-7
EINECS Namba: 201-245-8
Chibaka chazintu: Oleochemicals; Misanga yakupanga zintu zipona
Mboziboneka: Makristalu aatuba aali mbuli nyeleti naa busi butuba butuba (bubotu bwakupanga bulakonzya kulibonya mbuli zintu ziyumu)
Zibeela Zyakumubili azyamakemikalu
| Lubono | Kusalazya |
|---|---|
| Kulema kwamolekyula | 228.29 g/mol |
| Busena bwakunyenguluka | 158–159 °C (316–318 °F) |
| Busena Bwabilila | 220 °C (428 °F) a 4 mmHg (chiimo chakubula muya) |
| Bulemu | 1.195 g/cm3 (25 °C) |
| Kunywika | Tazikonzyi kunywika mumaanzi; kunywika muzintu zipona (nkokuti, ethanol, acetone, benzene, toluene, antoomwe a ethyl acetate) |
| Busena bwa Flash Point | 227 °C (nkomeki iijalidwe) |
| Kukkalikana | Chikkalilila muchiindi chakupya akusinikizyigwa; ulakonzya kumvwa mumuni wa ultraviolet (UV) (ulakonzya kunyonyooka naa kusanduka mubala kuti wakkala mumumuni wa UV kwachiindi chilamfu); kotantamuka kujatana azintu zipa kuti kube muuya mubotu, ma asidi, antoomwe ama alkali |
Zibelesyo Zipati
Bisphenol A nchintu chiyandikana loko mukupanga ma polymers aabeleka obotu azibelesyo zyamafakitali, anzila zibelesegwa zitobela:
Kupanga mapulasitiki aa polycarbonate (PC)
Mbuli chintu chipati chakupanga mapulasitiki aaPC, BPA ilagwasya kupanga zintu zitanyonyooki, zitanyonyooki mbuli zibelesyo zyamagesi (ma laptops, mafooni), zibelesyo zyamumugwagwa (zivwunisyo zyamumuni, zibeela zyamukati), antoomwe azyakulya (zyeendelezyegwa kuti zikwabililwe mumasena miingi).
Kupanga Epoxy Resin
Zibelesyegwa kupanga ma epoxy resins aakuvwumba (nkokuti, zyakuvwumba zyamukati, zyakuvwumba zyamakkampani zikwabilila kubola), zyakunamatika (zyakunamatika ziyumu kapati zyakubelesya mujulu amumayake), alimwi azintu zyakukwabilila magesi (mabboodi aama circuit, ma transformer windings).
Zimwi Zibelesyo Mumakwebo
Zibelesyo zitabelesyegwi zya polyether polyols (zibelesyegwa mumafoomu aa polyurethane).
Ziyungizyidwe muzintu zipa pulasitiki, zintu zilesyela mulilo, azintu zikwabilila mulilo kuzwa ku UV muzintu zya polymer.
Chili akati-akati mukupanga makemikalu aalibedelede (nkokuti, ma antioxidants, daistuffs).
Zyeelelo zyaBubotu
Zintu zyesu zya Bisphenol A zitobelezya zyeelelo zyanyika yoonse zyamakkampani azyakukwabilila, antoomwe azitondezyo zyakukwabilila akusalala mbuli zitobela:
| Index | Chiimo chamakwebo (chachiindi choonse) | Chiimo cha Reagent (Kusalala Kupati) |
|---|---|---|
| Kusalala (HPLC) | ≥ 99.5% | ≥ 99.8% |
| Buteteete buli mukati | ≤ 0.1% | ≤ 0.05% |
| Makani aa Mulota | ≤ 0.01% | ≤ 0.005% |
| Busofweede bwazibulo zilema (Pb, Cd, Hg) | ≤ 10 ppm | ≤ 1 ppm |
| Phenol Residue | ≤ 0.2% | ≤ 0.05% |
Zitondezyo zyakabambilwa kweendelana aziyandikana mumafakitali (nkokuti, zintu zitakwe busani bwakupanga zintu zikonzya kujatikizyigwa azyakulya).
Malailile aakubamba akujata
Kuchitila kuti zintu kazili kabotu akukwabililwa, tobela eezyi ziyandikana zyakuyobola akubamba:
Ziimo zyakuyobweda
Kupya: Kobamba mubusena butontola, butakwe maanzi a 15-25 °C; kotantamuka kupya kapati (>30 °C) naa kutontola (
Mumuni: Belesya zintu zitakwe mumuni (nkokuti, mabbodela aagilazi aamubala wa brown, ng'oma zyapulasitiki zya HDPE zikwabilidwe ku UV) kuchitila kutabilila kunyonyooka akaambo ka UV.
Buteteete: Kobamba buteteete buli munsi aa 60%; bika zintu ziyumya (silica gel, anhydrous calcium chloride) muziyobwedo kuchitila kuti kutabi kujatana.
Zyakujala ziyandikana
Bikka ziyobwedo kuti zijalwe kabotu-kabotu nikwamana kuzibelesya kuchitila kuti zitanjili maanzi akusofwaazyigwa. Kotantamuka kubelesya nzila zyakujala zyachiindi chifwiifwi (nkokuti, kuvwungaila pulasitiki) zikonzya kuleta kusofwaazya.
Nzila zyakukwabilila
Amusame zibelesyo zyakulikwabilila (PPE): Chivwumbyo chabulongo, magilovu aatakonzyi kunjila mumakemikalu, amagilazi aakulikwabilila aawo nomujata (ikapati kuzintu zijisi bulongo/bufwefwelenga).
Kuyoya: Bona kuti muuya weenda kabotu mumasena aakuyobweda akujata kuchitila kutabilila bulongo naa busi.
Kubamba zintu zyatila: Salazya zintu zyatila azintu zitabeleki kabotu (bulongo bwa diatomaceous, activated carbon); sowa tombe kweendelana amilawu yamisamu iikola.
Kutobela milawu
Zilesyo zyaNyika Yoonse: Zileendelana a EU REACH Regulation (Annex XVII) zisinkilizyo zya BPA muzintu zijatikizyidwe azyakulya (nkokuti, zikasyidwe mumabbodela aakusanzya bana).
FDA yaku Amelika: Ilazuzikizya malailile aa FDA aakubelesya BPA muzintu zyakuvwumba zyakulya amapulasitiki (21 CFR 175.300).
Zyeelelo zyaku China: Zileendelana a GB 4806.6 (zyeelelo zyakukwabilila zyamapulasitiki aajatikizyidwe azyakulya).
Kupaka antoomwe abuumi bwakuyobweda
Nzila zyakupaka:
Chiimo chamafakitali: 25 kg yamasaka aapulasitiki aa HDPE (ajisi mukati ka polyethylene) naa 500 kg yazibulo zya fiber (zijisi aluminiyamu foil).
Musyobo wa Reagent: 1 kg yamabbodela agilazi aa amber (aajalidwe aamakkilo aa Teflon).
Buumi bwakuyobweda: myezi iili makumi obilwe atune kuzwa buzuba bwakupanga (kuti yabikkwa kweendelana abukkale buli atala aawa, kakwiina kujalulwa).
Foomu yakulanga bubotu bwa Bisphenol A
| Analyte | Chintu | Kusalazya | Mpindu | Nzila Yakusunka |
| Mbuchiboneka | / | Ituba iiteteete naa iiteteete, Kakwiina busofwaazi bwaminchina | Ituba, Kakwiina tombe lyaminchina | GB/T 28113-2011 |
| Bisphenol A | Mukati/% | ≥99.85 | 99.925 | GB/T 28113-2011 |
| Phenol | Mukati/% | ≤0.005 | 0.001 | GB/T 28113-2011 |
| 2,4-Isomer | Mukati/% | ≤0.050 | 0.01 | GB/T 28113-2011 |
| Kaambo ka Crystalline | °C | ≥156.6 | 157.2 | GB/T 28113-2011 |
| Chroma iiteteete | Mubala, Pt-Co (Hazen Unit) | ≤20 | 10 | GB/T 28113-2011 |
| Nzila yakumanizya penzi Chroma | Mubala, Pt-Co (Hazen Unit) | / | 5 | GB/T 28113-2011 |
| Ibutete | Mukati/% | ≤0.08 | 0.02 | GB/T 6283-2008 |