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KemLin-103
(Rust & Scale Remover)
Product Description
Kemklin-103 is specially formulated to remove light to medium rust
and scales from ferrous and non-ferrous metals effectively by the spray
process. Kemklin-103 is purely based on phosphoric acid enriched with
various types of solvents/surfactants/inhibitors and wetting agents
etc.
This product also minimizes point blistering, removes the oxide
rapidly and serves as a good base for paint adhesion. Carry over into
phosphate bath will not interfere with Kemklin-103 chemical. It
involves no expensive equipments for operation.
Product
Specifications
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a.
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Colour
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Colorless Liquid
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b.
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Chemical Composition
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Blend of different types of acids with inhibitors, solvents
wetting agents etc.
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c.
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Odour
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Slightly Pungent
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d.
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Foaming Tendency
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Nil
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e
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Reliability
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Good
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f.
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Handling
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Avoid Skin Contact
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g
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Solubility
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Good
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h.
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pH
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Acid Range
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i.
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Toxicity
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Nil
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j.
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Flash Point
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Nil
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k.
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Pollution Hazard
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Moderate
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Product Operating Data
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Concentration
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10 -25%
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Temperature
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45±5°C
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Spray Time
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60 - 120sec
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Applications
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By Spray
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Spray Pressure
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1-1.2 kgm/cm2
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Product Operating Procedure
Kemklin-103 is generally diluted in
1:4 parts water prior to dip in Kemklin-103 bath, excess oil, grease,
and lose rust should be removed manually or by alkaline degreasing
or soak cleaning/emulsion cleaning etc. The immersion time required
for cleaning depends upon the amount of contamination, concentration,
temperature and iron content built up in the bath.
After the immersion in Kemklin-103
bath, the work should by rinsed thoroughly in clean water and
subjected to phosphating bath. Kemklin-103 bath can be maintained by
simple titration and does not require any skilled labour or any
chemical knowledge.
Bath should always be maintained at
the operating level with recommended concentration. Freshly prepared bath
acts rapidly but the action gradually degreases due to the
accumulation of iron concentration in the bath. Increasing the
temperature at this stage accelerates the derusting action, but the
temperature should be controlled and it should not go above 70° C.
Product Application Equipment
Kemlin-103 tank should be lead lined, rubber lined, glass fibre,
rigid polythene, stainless steel tanks made out of 18 gauge sheets
preferred, steam coil or electric heaters.
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
100 ml of distilled water with 10 12 drops of indicator
bromocresol green.
- Titrate this against N/10 sodium hydroxide solution.
- The colour changes from yellow to light blue.
- Freshly prepared 25% of concentration Kemklin-103 solution should
give the reading of 21 to 25 ml.
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.
Safety Measures
Kemklin-103 is a 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
Rust Removal: Good
Paint Adhesion: Good
Gloss Retention: Good.
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