Bisphenol A (BPA): Gin ma yubu jami ma tiyo maber

Bisphenol A (BPA), ma ki keto nyinge ni 2,2 - bis(4 - hydroxyphenyl)propane, tye ki formula me C15H16O2 ki pek pa molecule 228.29. Nen calo gin ma ryangi tar onyo ma nen maber, pol kare ki ngwec ma ki lwongo ni chlorophenol. BPA pe romo gonyo i pii ento gonyo maber i jami ma ki lwongo ni organic solvents calo carbon tetrachloride, alcohols, ethers, ki acetone. Pi tic ma malo pa atom me hydrogen i kom ortho ki para pa gurup me hydroxyl, BPA twero kato ki i jami mapol ma calo halogenation, nitration, sulfonation, ki oxidation, ma keto guti matek pi tic kwede i tic mapol.

lok kwedwa

Kwedo matut i kom jami ma kwako jami ma kwo

Kit ma dul kom ma pat pat: Molecule me BPA ni tye ki dul aryo ma ki lwongo ni phenolic hydroxyl ma gikubbe ki cogo pa propane. Kit ma ki yubu kwede ni miyo en tic ki jami ma pat pat. Dul aryo ma ki lwongo ni phenolic hydroxyl ni miyo BPA teko me nucleophilicity, ma miyo en twero tic ki jami ma pat pat. I kare acel, cogo pa propane miyo molecule ki rwom me tek ki gengo, ma weko yero ki tic pa BPA i jami ma pat pat.

Jami ma nen: BPA tye ki rwom me lyeto ma romo 158 - 159°C, rwom me lyeto ma malo ma romo 400.8°C, ki rwom me pek ma romo 1.195g/cm3. Kabedo ne ma malo me lyeto ki lyeto miyo en bedo maber i te lyeto ki teko ma opore, kun pek ne ma opore tiyo tic i kare me tic kwede ma mito pek pa jami mogo, ma calo i yubu jami mogo ma ki lwongo ni plastics ki resins, ma rwom me pek pa BPA twero gudo kit ma kome nen kwede ki kit ma ki yubu kwede jami ma ki yubu. En twero gonyo manok i carbon tetrachloride, pe twero gonyo i pii, ento twero gonyo i jami mapol ma pat pat, ki kit me gonyo ne moko kit ma en tiyo kwede ki kit me tic kwede i jami ma pat pat.

Karatac me neno ber pa Bisphenol A

Analyte	Kit gin acel	Kit ma ki ngeyo kwede	Adugi	Yo me temo
Kit ma nen kwede	/	Matar ma nen calo jami ma nen maber, labongo jami ma balo ne	Matar ma nen calo jami ma kicweyo, labongo gin mo marac	GB/T 28113-2011
Bisphenol A	Iye/%	≥99.85	99.925	GB/T 28113-2011
Phenol	Iye/%	≤0.005	0.001	GB/T 28113-2011
2,4-Isomer	Iye/%	≤0.050	0.01	GB/T 28113-2011
Crystalline Point	°C	≥156.6	157.2	GB/T 28113-2011
Molten Chroma	kala, Pt-Co (Hazen Unit)	≤20	10	GB/T 28113-2011
Chroma me cobo peko	kala, Pt-Co (Hazen Unit)	/	5	GB/T 28113-2011
Ngicu	Iye/%	≤0.08	0.02	GB/T 6283-2008

Tic ma pire tek i kabedo mapol

Yubu jami ma ki lwongo ni Plastics ki Resin:
Polycarbonate (PC) Production: BPA obedo gin ma pire tek ma ki tiyo kwede me yubu polycarbonate (PC). Polycarbonate nen maber i kabedo mapol pi neno ne maber (lero kato 90%), tek ne ma lamal (250 - 300 tyen ma kato pa gilaci ma rwate), tek ne maber, ki tek ne lyeto (lyeto ma romo 130 - 140°C). I dul ma kwako jami ma tiyo ki mac ki mac, PC ki tiyo kwede me yubu jami ma ki lwongo ni computer, cim cing, ki jami mukene ma tiyo ki mac, ma pe miiyo gwok maber pi jami ma tye iye ento bene medo rwom me cato wil pi kit ma nen kwede maber ki kit ma gi nen kwede maber. I tic me yubu motoka, PC ki tiyo kwede me yubu dero me motoka, jami ma ki tiyo kwede, ki jami mukene. Lero ma malo ma ki keto i kom mac ma i nyim motoka miyo lero ma ryeny i dyewor, kun rwom ma lamal pa jami ma ki tiyo kwede miyo jami ni bedo maber ki tic kwede pi kare malac. I tic me gedo, PC - ma ki yubu ki lero ceng, ler ma ki keto i wi ot, ki jami mukene ma ki tiyo kwede i odi pa lwak calo ka cato wil madongo ki ka tuku pi teko gi me gengo peko ki lero, ma miyo kabedo ma ryeny ki ma ber.

Yub me Epoxy Resin: BPA bene obedo gin ma pire tek me yubu epoxy resins. Epoxy resins tye ki rwom me mako maber ki twero mako jami ma pat pat calo nyonyo, bawo, ki gilaci, pi meno gi mako kabedo ma pire tek i dul ma mako mako. I tic me dege, jami ma ki lwongo ni epoxy - based adhesives ki tiyo kwede me mako jami ma tye i dege me neno ni dege ni tye maber ki ber i kare me ngwec ma tek. I kare acel, jami ma ki lwongo ni epoxy resins tye ki teko me gengo balo jami ki jami ma gengo lyeto ki bene kitiyo kwede i jami ma ki keto i kom jami ma ki lwongo ni electronic packaging ki coatings. Me labolle, jami ma ki lwongo ni circuit boards i jami ma tiyo ki mac pol kare ki keto iye epoxy resins me gwoko jami ma tiyo ki mac ki i kom jami ma twero balo piny ki medo rwom me kwo pa jami ma tiyo ki mac. I kom lok me umu, umu ma ki lwongo ni epoxy resin ki tiyo kwede me gwoko kom nyonyo, ma twero gengo buru pa jami ma calo acid ki alkalis ki medo kwo pa jami ma ki yubu ki nyonyo.

Tic ki jami mukene mabeco:
Kit me yubu gin ma gengo mac: Gin ma gengo mac calo tetrabromobisphenol A ki twero yubu ki BPA. Medo jami ma gengo mac tye gin ma pire tek i tic ma calo jami ma ki yubu ki plastik ki bongo. I jami ma ki yubu ki plastik, jami ma gengo mac twero dwoko piny lyeto pa jami. Ka ki keto i kama mac tye iye, yamo ma pe lyel ma obale onyo gin ma ki lwongo ni carbonaceous layer ma ki yubu ki jami ma gengo mac twero gengo cito pa yamo ki lyeto ki gengo nyaa pa mac. Me labolle, medo jami ma gengo mac i kom plastik ma tye i jami me tic ki mac ki mac twero dwoko piny peko me mac dok gwoko kwo pa dano kacel ki jamigi. I kom jami ma ki yubu ki bongo, tic ki jami ma gengo mac twero miyo bongi pe lyel ka gi rwate ki mac ki dwoko piny peko ma bino pi lyel pa bongi i mac.

Gin ma gengo lyeto ki jami ma gengo lyeto: BPA ki tiyo kwede calo gin ma gengo lyeto ki jami ma gengo lyeto i jami mogo ma ki yubu ki plastik ki raba. I kare me yubu jami ma ki yubu ki jami ma ki yubu ki plastik, jami ma calo lyeto ma malo ki oxygen weko jami ma ki yubu ki plastik doko mwaka ki balo, ma balo tic pa jami ki kwo pa jami ni. Ma calo gin ma gengo jami ma balo kom, BPA twero mako jami ma kelo two i kom jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu ki jami ma ki yubu. I kare acel, ma calo gin ma gengo lyeto, BPA twero medo teko pa jami ma ki yubu ki plastik i kabedo ma lyet ki gengo jami ma ki yubu ki plastik me balo, loko kala, ki peko mukene i kare me tic kwede onyo tic kwede. I jami ma ki yubu ki rubber, BPA bene twero timo tic acel, medo lyeto ki yamo ma ki yubu ki rubber ki medo kwo pa jami ma ki yubu ki rubber calo taya me motoka ki rubber seals.

Lok ma mako lok me gwoko kuc ki lagam pa dano ma gi tiyo tic me cato wil

Kwedo jami ma twero kelo peko i kom yot kom: BPA tye ki rwom me peko ma lapiny ki twero cito ki loko jami i kabedowa ki kom dano. Kwan mapol onyutu ni BPA tye ki adwogi ma calo estrogen ki twero balo dul kom pa dano. tutwale pi lutino, dongo pa dul kom gi me nywal twero bedo marac, ma twero kelo two ma mako dul kom gi me nywal. I kare acel, BPA twero kelo teko pa insulin, ma kelo peko me yot kom calo cukari madwong i remo ki pek pa kom. Temo mogo i kom ler onyutu ni ler ma ki temo ma ki keto i BPA pi kare malac tye ki dongo pa dul kom ma pe rwate ki kit ma gi loko kwede. Kadi bed ni kwan i kom adwogi pa BPA i kom yotkom pa dano pud tye ka wot anyim, lobe mapol gukwanyo yoo me gengo tic ki BPA i jami mogo pi lworo i kom peko me yotkom.

Yub me tic ki dongo cik: Ki neno lok ma mako gwok pa BPA, lobe mapol ki kabedo mapol i wilobo gu keto cik ma rwate me gengo tic kwede. I mwaka 2011, jang gang kal me yot kom me China ki jang gang kal abicel mukene gu keto cik ma gengo tic ki BPA i yubu, kelo, ki cato cupa cak pa lutino. Lobo ki dul ma calo lobo Amerika, Canada, ki European Union bene gu keto cik ma gengo tic ki BPA i jami ma ki keto i cam, jami ma ki yubu pi lutino, ki jami mukene. Ki rwate ki cik magi, kampuni ni tye ka yenyo yoo mukene me tic ki BPA, ma calo bisphenol S (BPS) ki diphenyl sulfone. I kare acel, kampuni ma yubu jami tye ka medde ki yubu kit me yubu jami ki jingo rwom me tic me dwoko piny rwom me cito pa BPA ki rwate ki cik ma tye ka mede ki jami ma luwil mito pi gwoko jami ma ki yubu i kom neno ni jami ma ki yubu ni tiyo maber. I yub me yubu polycarbonate ki epoxy resins, kampuni medo rwom me loko BPA ki dwoko piny BPA ma odong ma pe ki loko i jami ma ki yubu kun gi medo kit me tic ki yubu kit ma ki tiyo kwede.

Jami ma ki nyutu

Nying jami		Bisphenol A
Kit me yubu jami ma ki lwongo ni Chemical		C11H1₆O₂
Pek pa Molecule		228.29 g/mol
Kit ma nen kwede		Powder ma ler ma ki lwongo ni crystalline
Ka ma mol iye		155–158°C
Ka ma lyeto tye iye		250–252°C
CAS NO		80-05-7
HS Code		29072990
EINECS NO		201-240-4
Kwac		Yubu jami ma weko mac lyel, jami ma gengo mac, jami ma ki tiyo kwede me cango two; ki tiyo kwede me umu/mako jami.

Karatac me neno rwom me tic

Nying jami	Bisphenol A
KIT GI MO	wel ma ki ngeyo(%)	TEST VALUE(%)
Bisphenol A Purity wt.	Min 99.85	99.93
kala APHA	Ma kato 5	5
Phenol mg/kg	Ma kato 100	56
Free phenol wt. %	Ma kato 1000	230
Pek pa pii. %	Ma malo 0.1	0.03
Ash mg/kg	Ma kato 5	0
Iron mg/kg	Ma malo 0.1	0.03

Pingo wa yero BPA wa?

Wan wamoko tamwa me miiyo jami maber ki ma rwate ki BPA. Jami weny ma mako wilo jami ma ki tiyo kwede me yubu ki tic kwede lubu cik ma ki keto me neno ni jami ni tye maleng, pe ki jami maraco, ki jami weny ma nyutu ni rwate ki rwom ma malo. Watye ki dano ma ngeyo tic me R & D ma twero miiyo kony ma rwate ki miti pa luwil me konyo luwil me nongo diro ki dongo i dul ma calo plastik, jami ma ki lwongo ni resins, ki jami ma ki yubu maber. I kare acel, wa tye ki diro me gwoko jami ma mite me neno ni jami ma ki cwalo i kare ma opore ki ma rwate ki miti pa luwil. I lok ma mako BPA, wan wa keto cwinywa i kom cik, wa medo cente i R & D resources, ki wa medo rwom me tic maber ki ma pe kelo peko i kom jami ma ki yubu me miiyo bot luwil jami ma rwate ki cik ki ma genne.

Yer BPA wa, ribbe kacel me kelo alokaloka i lok ma mako jami ma tiyo maber, wok ki peko, ki yubu wel ma malo.