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PRODUCT SPECIFICATION SHEET <br />Alexander Chemical HYDROFLUOSILICIC ACID <br />� a <br />Corporation Effective 11/7/2003 <br />" Updated: 6/21 /2013 <br />Chemical Properties: <br />Chemical formula: H2SiF6 <br />Molecular weight: 144.06 <br />Hydrofluosilicic acid, %: 23.00 - 25.00 <br />Hydrofluoric acid (HF), %: 1 Maximum <br />Heavy metals as lead, ppm: 200.00 maximum <br />Color: 25 APHA maximum <br />Physical Properties: <br />Boiling point, OF: 225.00 <br />Freezing point, OF: - 4.00 <br />Specific gravity @ 60 OF: 1.223 @ 25.00 % <br />Vapor pressure, mm Hg @ 167 OF: 218 <br />pH: 1.2 <br />Appearance: White to Straw Yellow <br />Odor: Sour, pungent <br />Solubility in water: Complete <br />NSF International maximum use: 6.00 milligrams per liter <br />Meets ANSI / AVWI/A specification B703-06 <br />Packaged by: <br />Alexander Chemical Corporation <br />Kingsbury Industrial Park <br />Kingsbury, Indiana 46345 <br />800-348-8827 <br />