Kemklin-109(Rust Remover)(Rust Remover By Spray Application) Product Description Kemklin-109 is specially formulated to remove mild rust from ferrous and non-ferrous metals effectively by spray process. Kemklin-109 (S) is purely based on phosphoric acid enriched with various types of solvents/surfactants and wetting agents, etc. Kemklin-109(s) attacks only on rust or scales and it does not attack on the base metal. Product Specifications a. Colour Colourless Liquid b. Chemical Composition Blend of different types of acids with inhibitors, and emulsifiers etc. c. Odour Slightly Pungent d. Foaming Tendency Nil e Reliability Good f. Handling Avoid Skin Contact g Solubility Good h. pH Acid Range i. Toxicity Nil j. Flash Point Nil k. Pollution Hazard Moderate Product Operating Data Concentration 10%V/V Temperature 35-45oC Spray Time 120-240 sec. Spray Pressure 1-1.2kg/cm2 Pointage 8-10 m Product Operating Procedure Fill the tank with water and add: Kemklin-109(s) at the rate of 10% and mixed it thoroughly and raise the temperature to 35-45oC. prior to dip in Kemklin-109(c) bath, components should be free from oil, grease, strength and spray time of Kemklin-109(s) can be increased if the components are heavily contaminated with heavy rust. After processing in Kemklin-109(s), the work should be rinsed thoroughly in clean water and subjected to phosphating bath. Kemklin-109(S) bath can be maintained by simple titration and does not require any skilled labour or any chemical knowledge. Bath should always be maintained at operating level with recommended concentration freshly prepared bath acts rapidly but the action gradually decreases due to the accumulation of iron concentration in the bath. Increase the temperature at this stage accelerates the derusting action, but the temperature should be controlled and it should not go above 55oC. Product Application Equipments Kemklin-109(S) tanks should be lead lined, rubber lined, glass fibre, rigid polythene, stainless steel tanks made out of 18 gauge sheets preferred. Steam coil or nozzles should be 316 SS. Testing and Control Procedure Pipette out 10 ml. of bath solution and further diluted with 90 ml of distilled water. Pipette out 10 ml. Diluted solution into the conical flask and add 2 to 4 drops of indicator methyl orange. Titrate against N/10 sodium hydroxide solution. The colour changes from orange red to orange yellow. If the bath pointage goes down from the recommended level, Add: 8.33 ltrs. Kemklin-109(S) for increasing one pointage in 1000 ltrs. bath. Iron Concentration Pipette out 10 ml. of bath solution and add 10 ml. of 50% concentrated H2SO4. Mix it thoroughly, titrate this against N/10. Kmno4 solution till the colour changes to light pink stable for 15 seconds. % of iron in the bath is calculated as 0.056 x titrate reading. Maximum permissible limits of Iron concentration in Kemklin-103 bath is 7%. Chemical Replenishment The bath should be discarded when of concentrated solution and increase in the temperature does not show faster derusting action and powder deposits appear on the surface of the metal. Iron contamination should be more than 7%. Safety Measures Kemklin-109 is an acidic liquid material, and while handling proper care should be taken. Protect eyes and skin by means of goggles, aprons, gloves, etc. If it comes in contact with skin and eyes, wash thoroughly with a flush of water and get medical advice. General Information Heavy Rust Removal: Excellent Paint Adhesion: Good Gloss Retention: Good.