单词	rock salt
释义	rock salt noun : common salt occurring in solid form as a mineral also : salt artificially prepared in large crystals or masses Example Sentences I put some rock salt on the sidewalk to melt the ice. Recent Examples on the Web These facilities conceal something extraordinary: a network of cathedral-esque caverns carved into underground rock salt that can collectively hold more than 700 million barrels of oil. Robinson Meyer, The Atlantic, 27 July 2022 To make them, simply fill an ice cube tray with lemon wedges, rock salt, and water. Andrea Crowley, Better Homes & Gardens, 8 Aug. 2022 Overall, ice cream makers that used a combination of ice and rock salt to freeze were not as easy to use as ones that use a frozen canister or a compressor, and noise levels varied greatly. Brigitt Earley, Good Housekeeping, 16 June 2022 Fill your cooler with ice. Sprinkle the ice with rock salt or ice cream salt. Terry Baddoo, USA TODAY, 1 June 2022 The rock salt lowers the temperature of the ice-and-water bath to 27 degrees, which is the temperature at which cream can start to freeze. Alex Heard, Outside Online, 4 July 2020 These are created by injecting fresh water into subterranean rock salt formations, dissolving and washing away the salt until the caverns are hollowed out. Samanth Subramanian, Quartz, 31 Mar. 2022 Each year, the highway department dumped as much as 2,200 tons of rock salt onto 110 miles of road – nearly 2 pounds of salt for every square yard of road. Kyle Bagenstose, USA TODAY, 27 Feb. 2022 Apply some de-icer or rock salt to your sidewalk and steps. Frank Witsil, Detroit Free Press, 31 Jan. 2022 See More Word History First Known Use 1693, in the meaning defined above Kids Definition rock salt noun : common salt in large crystals
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