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Pyrosis

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• Pyrostat

  [pahy-ruh-stat] /ˈpaɪ rəˌstæt/ noun 1. a thermostat for high temperatures. 2. a safety device that, when a fire breaks out in its vicinity, automatically causes a mechanism to sound a warning alarm. /ˈpaɪrəʊˌstæt/ noun 1. a device that activates an alarm or extinguisher in the event of a fire 2. a thermostat for use at […]

• Pyrosulfate

  [pahy-ruh-suhl-feyt] /ˌpaɪ rəˈsʌl feɪt/ noun, Chemistry. 1. a salt of . pyrosulfate (pī’rō-sŭl’fāt’) A salt or ester of pyrosulfuric acid, containing the group S2O7.

• Pyrosulfuric

  [pahy-roh-suhl-fyoo r-ik] /ˌpaɪ roʊ sʌlˈfyʊər ɪk/ adjective, Chemistry. 1. of or derived from ; disulfuric.

• Pyrosulfuric-acid

  noun, Chemistry. 1. an oily, hygroscopic, corrosive liquid, H 2 S 2 O 7 , that, depending on purity, is colorless or dark brown: used chiefly as a dehydrating agent in the manufacture of explosives and as a sulfating or sulfonating agent in the manufacture of dyes. pyrosulfuric acid (pī’rō-sŭl-fyr’ĭk) A heavy, oily, colorless to […]

• Pyrosulphate

  /ˌpaɪrəʊˈsʌlfeɪt/ noun 1. any salt of pyrosulphuric acid Also called disulphate

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