|Molar mass||250.27 g·mol−1|
|Appearance||White colorless solid; forms needle shaped crystals in water|
|Melting point||245 to 250 °C (473 to 482 °F; 518 to 523 K)|
|Solubility||soluble in ethanol|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
Bisphenol S (BPS) is an organic compound with the formula (HOC6H4)2SO2. It has two phenol functional groups on either side of a sulfonyl group. It is commonly used in curing fast-drying epoxy resin adhesives. It is an analog of bisphenol A (BPA) in which the dimethylmethylene group (C(CH3)2) is replaced with a sulfone group (SO2).
BPS has become increasingly common as a plasticizing agent following the widespread bans on the use of BPA due to its estrogen-mimicking properties, and BPS can now be found in a variety of common consumer products. In some cases, BPS is used where the legal prohibition on BPA allows products containing BPS to be labelled "BPA free". BPS also has the advantage of being more stable to heat and light than BPA.
BPS was first made in 1869 as a dye.
Studies have shown that BPS is not a chemical that is newly incorporated into everyday consumer products, but one that is just being brought to public awareness.
It is difficult for consumers to determine if a product contains BPS due to limited labeling regulations.
- 2 C6H5OH + H2SO4 → (C6H4OH)2SO2 + 2 H2O
- 2 C6H5OH + SO3 → (C6H4OH)2SO2 + H2O
- Liao, C.; Liu, F.; Kannan, K. (2012). "Bisphenol S, a New Bisphenol Analogue, in Paper Products and Currency Bills and Its Association with Bisphenol a Residues". Environmental Science & Technology 46 (12): 6515–22. doi:10.1021/es300876n. PMID 22591511.
- Liao, C.; Liu, F.; Guo, Y.; Moon, H. B.; Nakata, H.; Wu, Q.; Kannan, K. (2012). "Occurrence of Eight Bisphenol Analogues in Indoor Dust from the United States and Several Asian Countries: Implications for Human Exposure". Environmental Science & Technology 46 (16): 9138–9145. doi:10.1021/es302004w.
- Jenna Bilbrey (Aug 11, 2014). "BPA-Free Plastic Containers May Be Just as Hazardous". Scientific American.
- Kuruto-Niwa, R.; Nozawa, R.; Miyakoshi, T.; Shiozawa, T.; Terao, Y. (2005). "Estrogenic activity of alkylphenols, bisphenol S, and their chlorinated derivatives using a GFP expression system". Environmental Toxicology and Pharmacology 19 (1): 121–130. doi:10.1016/j.etap.2004.05.009. PMID 21783468.
- Viñas, R.; Watson, C. S. (2013). "Bisphenol S Disrupts Estradiol-Induced Nongenomic Signaling in a Rat Pituitary Cell Line: Effects on Cell Functions". Environmental Health Perspectives 121 (3): 352–8. doi:10.1289/ehp.1205826. PMID 23458715.
- Ji, K.; Hong, S.; Kho, Y.; Choi, K. (2013). "Effects of Bisphenol S Exposure on Endocrine Functions and Reproduction of Zebrafish". Environmental Science & Technology: 8793–8800. doi:10.1021/es400329t.
- Glausiusz, Josie. "Toxicology: The plastics puzzle". Nature Publishing Group. Retrieved 25 March 2015.
- Brian, Bienkowski. "BPA replacement alters hormones at low doses, study finds". Environmental Health News. Environmental Health Sciences. Retrieved 23 March 2015.
- Howard, Brian. "Chemical in BPA-Free Products Linked to Irregular Heartbeats". National Geographic. National Geographic. Retrieved 29 March 2015.
- METHOD OF PREPARATION OF 4,4′-DIHYDROXYDIPHENYLSULPHONE (Freepatentsonline).