US 12,006,588 B2
Eutectic solvent
Brindan Tulachan, Kanpur (IN); Aasiya Bano Shaikh, Nashik (IN); and Sumanta Chakrabarty, Murshidabad (IN)
Assigned to Offgrid Energy Labs Private Limited, New Delhi (IN); and Offgrid Energy Labs Inc., San Francisco, CA (US)
Appl. No. 17/800,446
Filed by Offgrid Energy Labs Private Limited, New Delhi (IN); and Offgrid Energy Labs Inc., San Francisco, CA (US)
PCT Filed Jun. 21, 2021, PCT No. PCT/IN2021/050597
§ 371(c)(1), (2) Date Aug. 17, 2022,
PCT Pub. No. WO2021/260723, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 202011026185 (IN), filed on Jun. 22, 2020.
Prior Publication US 2023/0082242 A1, Mar. 16, 2023
Int. Cl. C25D 3/66 (2006.01)
CPC C25D 3/665 (2013.01) 5 Claims
OG exemplary drawing
 
1. A eutectic solvent comprising:
one or more derivative(s) of methanesulfonic acid selected from its salts with metal ions selected from the group consisting of manganese, zinc, cerium, nickel, titanium, copper, sodium, potassium, and calcium;
one or more ammonium salt(s) having general formula NH4X, where X is selected from the group consisting of chloride, methanesulfonate, acetate, sulphate, triflate, and trimethanesulfonate; and
one or more hydrogen bond donor(s) selected from the group consisting of urea, thiourea, glycerol, oxalic acid, acetic acid, ethylene glycol, acetamide, benzamide, adipic acid, benzoic acid, and citric acid,
wherein the molar ratio of derivative(s) of methanesulfonic acid, ammonium salt(s) and hydrogen bond donor(s) is in the range 0.5-3:2-7:8-13, respectively.