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TEXAS A_ ,HIGH CEMENT COMF.NY LP <br />Page 1 of 5 <br />Safety Data Sheet <br />Revised in December, 2015 and supersedes and replaces any prior versions <br />CEMENT (PORTLAND / OIL WELL / MASONRY) <br />1 IDENTIFICATION <br />1.1 Product Names: Texas Lehigh Portland Cement - Types I, 1/1I, III, V; Oil Well Classes A, C, H; Masonry N & S. <br />1.1.1 Product Code <br />Standard Industrial Classification: 3241 <br />1.1.2 Chemical Family <br />Calcium compounds. Calcium silicate compounds and other calcium compounds containing iron and aluminum make <br />up the majority of this product. Major compounds: <br />3Ca0aSi02. Tricalcium silicate CAS#12168-85-3 <br />2CaOeSi02 Dicalcium silicate CAS#10034-77-2 <br />3Ca0A1203 Tricalcium aluminate CAS#12042-78-3 <br />4Ca0=A12039.-Fe203 Tetracalcium aluminoferrite CAS#12068-35-8 <br />CaSO4g2H20 Calcium sulfate dihydrate or Gypsum CAS#7778-18-9 <br />CaCO3 Limestone CAS#471-34-1 <br />1.1.3 Chemical Name and Synonyms <br />Portland cement, also known as hydraulic cement. <br />1.1.4 Formula <br />These products consists of fmely ground Portland cement clinker mixed with a small amount of calcium sulfate, and <br />possibly limestone and mineral wool. <br />1.2 Supplier/Manufacturer <br />TEXAS LEHIGH CEMENT COMPANY, LP <br />701 Cement Plant Road <br />Buda, Texas 78610 <br />1.2.1 Emereency Contact Information <br />Safety Director, 512-295-9244 <br />Quality Control Manager, 512-295-9241 <br />1.3 *Trace Elements <br />Portland cement is made from materials mined from the earth and is processed using energy provided by fuels; and <br />therefore may contain trace amounts of naturally occurring materials which might be detected during chemical <br />analysis. For example: Portland cement may contain up to 0.75% insoluble residue, of which <0.1% may be free <br />crystalline silica. Other trace constituents may include potassium and sodium sulfate compounds, chromium <br />compounds, and nickel compounds. <br />2 HAZARDS IDENTIFICATION/TOXICOLOGICAL INFORMATION <br />Page 1 of 5