Saukewa: R-454B

R-454B, wanda kuma aka sani da sunayen masu alamar kasuwanci Opteon XL41, Solstice 454B, da Puron Advance, shine haɗin zeotropic na 68.9 bisa dari difluoromethane (R-32), wani hydrofluorocarbon, da 31.1 bisa dari 2,3,3,3-netraproproproperoproperoprotective. R-1234yf), wani hydrofluoroolefin. Saboda rage yuwuwar dumamar yanayi (GWP), R-454B ana nufin ya zama madadin R-410A mai sanyi acikin sabbin kayan aiki. R-454B yana da GWP na 466, wanda shine kashi 78 ƙasa da GWP na R-410A.

R-454B ba mai guba ba ne kuma mai sauƙi mai ƙonewa, tare da rarrabuwar aminci na ASHRAE na A2L. A ƙasar Amirka, ana sa ran za a sanya shi a cikin wani akwati mai ja ko kuma yana da bandeji mai ja a kafaɗa ko sama.

 Tarihi 
Masana'antar na'urorin sanyaya na'urar tana neman maye gurbin R-410A saboda yawan yuwuwar dumamar yanayi. R-454B, wanda aka fi sani da DL-5A, masana'antun da yawa sun zaɓa, ciki har da Mitsubishi Electric, Carrier, Johnson Controls, da sauransu.

R-454B an haɓɓaka shi kuma Chemours ne ya kera shi. Mai jigilar kaya ya fara bada sanarwar gabatarwar R-454B acikin ducted na zama da haske na kasuwanci kunshe-kunshe da samfuran kwandishan acikin 2018,tare da ƙaddamar da samfuran tushen R-454B acikin 2023.

 Abubuwan firiji masu alaƙa 
R-454B ba shine kawai haɗakar R-32 da R-1234yf da za'a bada shawarar azaman refrigerant ba.Sauran haɗe-haɗe sun haɗa da R-454A (kashi 35 R-32, kashi 65 R-1234yf) da R-454C (kashi 21.5 R-32, kashi 78.5 R1234yf).Hakanan akwai gauraye da yawa waɗanda suka haɗa da kashi na uku.

 Manazarta