To inquire, Select Product/s & Click on Product Code : 532 [Select] Product Specification Kemphos-532 (Manganese Phosphating Chemical) Product description Kemphos-532 is specially formulated to produce Iron manganese, Phosphating coating on Iron and steel surfaces. This process is used for a wide variety of Industries and application in the treatment of precision components, like gears, pistons and rings. Cylinder, Liners, bearing surfaces, military vehicles, aeroplanes, connecting rods and host of the other industrial products find its immense use of ferrous materials they are fabricated. It reduces wear and tear on moving parts, inhibits corrosion and reduces friction among moving parts. Product Specifications a. Colour Light Green Liquid b. Chemical Composition Blend of phosphates, manganese, activators, nitrates etc. c. Odour Slightly Pungent d. Foaming Tendency Nil e. Reliability Good f. Handling Avoid Skin Contact g. Solubility Good h. pH Acidic Range I. Toxicity Nil j. Flash Point Nil k. Pollution Hazard Moderate Product Operating Data

The most important factor before Kemphos-532 operation is that the components should be cleaned well, which will effects the grain size of the Kemphos-532 manganese coating. It should be absolutely free from oils, soils and rust.

Product Application Equipment
Kemphos-532 tank should be fabricated with 3 to 4 mm thick M.S plates with continuous convection current hating system.

Testing and Control Procedure

Total Acidity
Pipette out 10 ml. Bath sample of Kemphos-532 solution into 150 ml conical flask, add 5 drops of indicator phenolphthalein. Titrate it against N/10 NaOH till the pink colour appear. T. A. should be maintained between 32 to 55 ml.

Free Acidity
Pipette out 10 ml of running bath (Kemphos-532) solution in a conical flask add 3 – 4 drops of bromophenol blue indicator then titrate it against with N/10 NaoH from yellow colour to sky blue colour. Normally the free acid is maintained between 4 – 9ml.

Iron Contents
Pipette out 10 ml of the bath solution, add 2 ml of 50% h₂so₄ and titrate it against N/10 KmnO⁴ solution to pink colour. Note the burette reading. Multiply the burette reading with 0.056 and it will give the iron content of the bath. The normal range is 0.15 to 0.23%.

Generally, iron contents increase gradually in the running bath and it has to be reduced to a required range. In order to obtain a good and smooth coatings. To reduce the iron contents by 0.5% add 50 gm. Of 35% H₂O₂ (Hydrogen peroxide) per 100 liters of solution.

When Iron Content Reduces

• Add required amount of 35% H₂O₂. Dilute with water prior to addition to the bath.
• Let it react for 15 minutes.
• Add required amount of (Kemphos-532) neutralizer make into a slurry from prior to addition.
• Let it react for 15 minutes.
• Against check up the Iron content and repeat the procedure. The very important thing is to maintain the temperature between 95 to 98°C. Prior to, commencing any production. Let the sludge should be settle at the bottom to follow this method. Discard the bath when Iron concentration reach beyond 0.4%.

Chemical Replenishment
Since there is continuous sludge generation in phosphating bath due to phosphating of ferrous metal surface, the bath should desludged periodically and should be replenished by adding chemical to achieve specified bath pointage.

Safety Measures
Kemphos-532 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
Corrosion Resistance: Excellent.