Bisphenol A/BPA Bisphenol A (BPA) Nneɛma a Wɔde Yɛ Adwuma Ho Nsɛm Krataa
Nneɛma a Wɔyɛ no Ho Nsɛm
Nneɛma a Wɔyɛ no Ho Nsɛm
Aguade no Din: Bisphenol A (Nea wɔatwa no tiaa: BPA)
Nnuru a Wɔde Yɛ Nnuru: C15H12O2
CAS Nnɔmba: 80-05-7
EINECS Nnɔmba: 201-245-8
Nneɛma a Wɔde Yɛ: Oleochemicals; Nneɛma a Wɔde Yɛ Nneɛma a Nkwammoaa Mu
Sɛnea ɛte: Ahwehwɛ fitaa a ɛte sɛ ade anaasɛ powder fitaa a ɛyɛ fɛ (ebetumi ada adi sɛ mfiridwuma mu de sɛ nneɛma a ɛyɛ den a ɛyɛ granular)
Nneɛma a Wɔde Yɛ Nneɛma & Nnuruyɛ mu Nneɛma
| Agyapadeɛ | Nsɛm a Wɔakyerɛkyerɛ mu |
|---|---|
| Molekyul Mu Mu duru | 228.29 g/mol na ɛyɛ adwuma |
| Nsuo a Ɛyɛ Nwene | 158–159 °C (316–318 °F) na ɛwɔ hɔ. |
| Boiling Point a Ɛwɔ Hɔ | 220 °C (428 °F) wɔ 4 mmHg (vacuum tebea) . |
| Muduro | 1.195 g/cm3 (25 °C) na ɛyɛ kɛse. |
| Nsuo a ɛtumi nwura mu | Ɛntumi nnye nsuo mu; a ɛtumi nwura nsuo a ɛwɔ abɔdeɛ mu (sɛ nhwɛsoɔ no, ethanol, acetone, benzene, toluene, ne ethyl acetate) mu . |
| Flash Point a Ɛwɔ Hɔ | 227 °C (kuruwa a wɔato mu) . |
| Gyinabea a egyina pintinn | Ɛgyina pintinn wɔ ɔhyew ne nhyɛso a ɛfata ase; a ɛte nka sɛ hann a ɛyɛ ultraviolet (UV) (UV) hann (ebetumi asɛe anaasɛ ne kɔla asesa bere a wɔde UV ahyɛ mu bere tenten no); kwati sɛ wo ne oxidizers, acid, ne alkali a ano yɛ den bɛbɔ |
Nnwuma Titiriw a Wɔde Di Dwuma
Bisphenol A yɛ ntamgyinafoɔ a ɛho hia wɔ polymers a ɛyɛ adwuma yie ne mfiridwuma mu nneɛma a wɔyɛ mu, a ɛwɔ dwumadie titire a ɛdidi soɔ yi:
Polycarbonate (PC) Plastik a Wɔyɛ
Sɛ́ ade titiriw a wɔde yɛ PC plastic no, BPA ma wotumi yɛ nneɛma a ɛko tia abubu, a ɛko tia ɔhyew te sɛ ɛlɛtrɔnik mfiri dan (laptop, smartphone), kar afã horow (kanea a wɔde kata anim, emu panels), ne nneɛma a wɔde di dwuma wɔ aduan mu (a wɔahyɛ ho mmara sɛnea ɛbɛyɛ a ahobammɔ bɛba wɔ mmeae dodow no ara).
Epoxy Resin a Wɔde Yɛ Nneɛma
Wɔde yɛ epoxy resins a wɔde kata nneɛma so (sɛ nhwɛso no, can inner linings, industrial anti-corrosion coatings), adhesives (structural adhesives a ahoɔden kɛse wom a wɔde kata ahunmu ne adansi), ne anyinam ahoɔden a wɔde siw nneɛma ano (circuit boards, transformer windings).
Mfiridwuma Afoforo a Wɔde Di Dwuma
Nneɛma a wɔde yɛ polyether polyols (a wɔde yɛ polyurethane foams)
Ade a wɔde ka plasticizers, ogyaframa a ɛmma ogya ntumi nhyew, ne UV stabilizers a wɔde yɛ polymer nneɛma mu
Mfinimfini wɔ nnuru titiriw a wɔyɛ mu (sɛ nhwɛso no, nnuru a ekum ɔyare mmoawa, nneɛma a wɔde yɛ nneɛma).
Gyinapɛn a Ɛfa Nneɛma Pa Ho
Yɛn Bisphenol A nneɛma no di wiase nyinaa mfiridwuma ne ahobammɔ gyinapɛn ahorow so, a ɛho tew ne efĩ ho nsɛnkyerɛnne a ɛtaa ba sɛnea edidi so yi:
| Index | Mfiridwuma mu Adesua (Typical) . | Reagent Grade (Ahotew a Ɛkorɔn) . |
|---|---|---|
| Ahotew (HPLC) . | ≥ 99.5% na ɛwɔ hɔ. | ≥ 99.8% na ɛwɔ hɔ. |
| Nsuo a Ɛwɔ Mu | ≤ 0.1% na ɛwɔ hɔ. | ≤ 0.05% na ɛwɔ hɔ. |
| Ash Nsɛm a Ɛwɔ Mu | ≤ 0.01% na ɛwɔ hɔ. | ≤ 0.005% na ɛwɔ hɔ. |
| Nneɛma a Wɔde Yɛ Nneɛma a Ɛyɛ Den (Pb, Cd, Hg) . | ≤ 10 ppm na ɛwɔ hɔ | ≤ 1 ppm na ɛyɛ |
| Phenol a Ɛkae | ≤ 0.2% na ɛwɔ hɔ. | ≤ 0.05% na ɛwɔ hɔ. |
Nneɛma a wɔayɛ no sɛnea wɔpɛ wɔ hɔ ma mfiridwuma ahiade pɔtee bi (sɛ nhwɛso no, nneɛma a ɛho ntew pii a wɔde yɛ nneɛma a ɛne aduan di nkitaho).
Akwankyerɛ a Ɛfa Nneɛma a Wɔkora So & Nea Wɔde Di Dwuma Ho
Sɛnea ɛbɛyɛ a wobɛhwɛ ahu sɛ nneɛma no gyina pintinn na ahobammɔ wɔ adwumayɛ mu no, di ahwehwɛde ahorow a ɛfa nneɛma a wɔkora so ne sɛnea wɔde di dwuma yi akyi:
Tebea a Wɔde Siesie Nneɛma
Ɔhyew: Fa sie baabi a ɛhɔ yɛ nwini na ɛhɔ yɛ kusuu wɔ 15–25 °C; kwati ɔhyew a ano yɛ den (>30 °C) anaa awɔw (
Hann: Fa nsukorade a ɛnyɛ hann (sɛ nhwɛso no, ahwehwɛ nkotoku a ɛyɛ bruu, HDPE plastic sanku a UV ahobammɔ wom) di dwuma na amma UV asɛe no
Nsuo: Ma nsuo a ɛyɛ nwini no kɔ so yɛ
Nsɔano a Wɔhwehwɛ
Fa nkuku no toto mu denneennen bere a wode adi dwuma biara akyi na amma nsu ankɔ mu na wɔamfa efĩ anhyɛ mu. Kwati sɛ wode akwan a wɔfa so kata so bere tiaa bi (sɛ nhwɛso no, plastic a wɔde kyekyere nneɛma) a ebetumi ama cross-contamination aba no bedi dwuma
Ahobammɔ Ho Ahwɛyiye
Hyɛ mfiri a wode bɔ wo ho ban (PPE): Hyɛ mfutuma akataso, nsateaa a nnuru ntumi nkɔ mu, ne ahobammɔ ahwehwɛ bere a woredi ho dwuma (titiriw wɔ powder/granular ahorow ho).
Mframa a wɔde fa mu: Hwɛ sɛ mframa pa bɛkɔ mmeae a wɔkora nneɛma ne nea wɔde di dwuma na amma mfutuma anaa nsu a ɛyɛ hyew anboaboa ano
Nneɛma a Ɛhwie Agu Ho Dwumadi: Fa nneɛma a ɛtwetwe nsu a ɛnyɛ adwuma (diatomaceous earth, activated carbon) siesie nneɛma a ɛhwie gu; tow nwura gu sɛnea mpɔtam hɔ nnuru a asiane wom ho mmara kyerɛ no
Mmara a Wodi So
Wiase Nyinaa Anohyeto: Ɛdi EU REACH Mmara (Annex XVII) anohyeto ahorow a ɛfa BPA a ɛwɔ nneɛma a ɛne aduan di nkitaho mu (sɛ nhwɛso no, wɔabara wɔ nkokoaa aduan nkotoku mu) so
U.S. FDA: Edu FDA akwankyerɛ ahorow a ɛfa BPA a wɔde di dwuma wɔ nneɛma a wɔde kata aduan so ne plastic mu (21 CFR 175.300) so
China Gyinapɛn: Ɛne GB 4806.6 (ahobammɔ gyinapɛn a ɛfa plastic resins a ɛka aduan ho) hyia
Nneɛma a Wɔde Gu Nneɛma Mu & Nkwa Ntraso
Nneɛma a Wobetumi Apaw:
Industrial Grade: HDPE plastic bags a emu duru yɛ kilogram 25 (a polyethylene a ɛwɔ mu) anaa fiber drums a emu duru yɛ kilogram 500 (a wɔde aluminium foil ahyɛ mu).
Reagent Grade: amber glass nkotoku a emu duru yɛ kilogram 1 (wɔde Teflon-lined caps atoto mu).
Nkwa Nna: Asram 24 fi da a wɔyɛɛ no (sɛ wɔde sie sɛnea atifi hɔ tebea horow no hyia a, wɔanbue).
Kratasin a Wɔde Hwɛ Bisphenol A a Ɛyɛ Paara
| Analyte a wɔde yɛ nhwehwɛmu | Ɔfa | Nsɛm a Wɔakyerɛkyerɛ mu | Nsunsuansoɔ | Ɔkwan a Wɔfa so Sɔ Sɔhwɛ |
| Mmaeɛ | / . | White granular anaa flaky, Enni mfiri mu efĩ | White granular, Enni mfiri mu efĩ | GB/T 28113-2011 na ɛwɔ hɔ |
| Bisphenol A. a wɔde yɛ aduru | Mu/% | ≥99.85 na ɛwɔ hɔ | 99.925 na ɛwɔ hɔ | GB/T 28113-2011 na ɛwɔ hɔ |
| Phenol a wɔfrɛ no phenol | Mu/% | ≤0.005 na ɛwɔ hɔ | 0.001 na ɛwɔ hɔ | GB/T 28113-2011 na ɛwɔ hɔ |
| 2,4-Isomer na ɛwɔ hɔ | Mu/% | ≤0.050 na ɛwɔ hɔ | 0.01 na ɛwɔ hɔ | GB/T 28113-2011 na ɛwɔ hɔ |
| Crystalline Point a Ɛyɛ Ahwehwɛ | °C | ≥156.6 na ɛwɔ hɔ | 157.2 | GB/T 28113-2011 na ɛwɔ hɔ |
| Chroma a Wɔabɔ no Nwene | Kɔla, Pt-Co (Hazen Kuw) . | ≤20 na ɛwɔ hɔ | 10. 10. Ɔde ne nsa kyerɛɛ ne so | GB/T 28113-2011 na ɛwɔ hɔ |
| Ano aduru Chroma | Kɔla, Pt-Co (Hazen Kuw) . | / . | 5. 5. | GB/T 28113-2011 na ɛwɔ hɔ |
| Nsuo | Mu/% | ≤0.08 na ɛwɔ hɔ | 0.02 na ɛwɔ hɔ | GB/T 6283-2008 na ɛwɔ hɔ |