He aha ke kiko paila o ka bisphenol A?

ʻO Bisphenol A (BPA), i ʻike ʻia hoʻi ʻo diphenylolpropane a i ʻole (4-hydroxyphenyl)propane, hana i nā kristal prismatic i loko o ka ethanol dilute a me nā kristal e like me ke nila i loko o ka wai. He mea hiki ke puhi a he ʻala phenolic palupalu. ʻO kona kiko heheʻe he 157.2°C, ʻo ka kiko flash he 79.4°C, a ʻo ka kiko paila o ka bisphenol a he 250.0°C (ma 1.733 kPa). Hiki ke hoʻoheheʻe ʻia ka BPA i loko o ka ethanol, acetone, acetic acid, ether, benzene, a me nā alkalis dilute akā aneane hiki ʻole ke hoʻoheheʻe ʻia i ka wai. Me ke kaumaha molekala o 228.29, he derivative ia o ka acetone a me ka phenol a lawelawe ma ke ʻano he mea maka koʻikoʻi i ka ʻoihana kemika organik.

ʻO Bisphenol A - ka ʻāpana koʻikoʻi i ka hana polycarbonate, e hāʻawi ana i nā plastics me ka moakāka maikaʻi loa a me ke kūpaʻa i ka hopena. Kaomi ma aneʻi e kiʻi i kahi ʻōlelo hoʻēmi nui no Bisphenol A.

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Ka manawa hoʻouna: ʻOkakopa-16-2025