Conlen Surfactant Technology, Inc. 14385 Koalstad Rd ♦ Conroe, TX 77302 ♦ Tel: 936-231-3004 ♦ Fax: 936-231-3002 E-mail: [email protected] ♦ Website: www.csttexas.com CST-2825 Multi-Purpose Iron Complexing Agent PRODUCT FEATURES * Highly Effective Iron Complexing Agent * Eliminates Iron Sludge * Excellent for use in ALL ACIDS * Eliminates Re-Precipitation * Nonionic Organic Compound * Compatible with other Additives PRODUCT DESCRIPTION CST-2825 is a powerful reducing agent for ferric iron in acids, such as those commonly used in oilwell treating. It is a nonionic organic compound that is compatible with all common acid additives. Reduces acid emulsions caused by iron sludge, and prevents asphaltene sludging caused by dissolved iron during the acidizing process. TYPICAL PHYSICAL PROPERTIES Form, @ 70°F Liquid Density, (lbs/gal) 10.8 Flash Point, °F (TCC) >200 Pour Point, °F <20 pH, (10% Solution) 1.0-3.0 Ionic Charge Nonionic Solubility Fresh Water Miscible High TDS Brine Miscible Hydrocarbon Insoluble Acid Soluble _______________________________________________ SHIPPING AND HANDLING CST-2825 is available in 55 gallon drums and bulk tank wagons. As with any individual chemical, avoid prolonged contact with skin. In case of skin or eye contact, flush exposed area with copious amounts of water. A material safety data sheet outlining proper handling of this product is available upon request, or will be forwarded upon the purchase of CST-2825. RECOMMENDED APPLICATION CST-2825 is used in oilwell acidizing if ferric iron-induced sludging or ferric-iron reprecipitation is a potential problem. Normal usage levels are 2 to 5 gallons of CST-2825 per 1,000 gallons of acid. This application of CST-2825 will rapidly reduce yellow ferric iron to the colorless, soluble ferrous form of iron in hydrochloric acid solutions. CST2825 performs in other common oilfield acids as well. The use of CST-2825 has not been found to interfere with performance of other common acid additives. TDS-0697 The information in this bulletin is believed to be accurate, but all recommendations are made without warranty, since the conditions of use are beyond the manufacturer’s control. The listed properties are illustrative only, and not product specifications. The manufacturer disclaims any liability in connection with the use of the information, and does not warrant against infringement by reason of the use of any of it’s products in combination with other materials or in any process.