PRODUCTION OF RADIATOR COOLANT

PRODUCTION OF RADIATOR COOLANT

FORMULATIONS:

1. Sodium Tripolyphosphate (STPP) 12-13 parts (kg)
Sodium Chromate (or Dichromate) 0.3-0.5 parts (kg)
Water (Distilled or others) 87-88 kg or litres
TOTAL 100 LITRES

2. Soda Ash (light) 3.5 parts (kg)
Sodium Dichromate 6.5 parts(kg)
Water (Distilled) or others 90parts(kg) or litres
TOTAL 100 LITRES

3. Propylene Glycol 35-40 parts (litres)
Water Distilled 55-60 parts (litres)
Colour (Green) 1-2 TSP or Required
TOTAL 100 LITRES

Note: T.S.P. Means Table Spoonful.

Equipment & tools:- see Brake fluid section.
Simple equipment and tools are needed for the production of brake fluids. These are:

(a) Low Speed Manual or Motorized Mixers (100 – 200 Rpm)
(b) Weighing and Measuring Devices
(c) Storage Tanks (stainless types)
(d) Filtration Unit (optional)
(e) Filling and Packaging Units
(f) Laboratory Tools for Measuring and testing quality parameters such as viscosity, flash point, and other good lubricant properties.
(g) Personal protective gadgets such as boots, overall, gloves, mask, respirators caps, goggles etc.

These items can be sourced locally or abroad.


PRODUCTION METHOD

Do a careful selection of the recipe to use, based on availability of raw materials, ease of processing, cost of production (profit margin) and end users requirement. Now measure (weigh) out all the selected raw materials in separate containers. Share the water needed into two unequal parts. Put the sodium salt (e,g. STPP or others) with the largest proportion into the lager part of water and dissolve the smaller sodium salt(e,g Sodium Chromate or other Chromates) in the smaller part of water and mix well.

Now mix the two solutions and add color if desired to the level required.

Note: For Formulation no. 3 measure the two components and mix them and add the colourant and Mix well and pack. Mixing for 100 litres should take about 20-30 minutes in all.

Formulation No. 3 is the modern type.

Quality parameters:

1. The product should mix easily with water
2. It should not separate out on heating
3. It should resist temperature up to a difference of 10-200C
4. It should be clear on standing
5. It should not cause rusting
6. The product must not disrupt radiator performance.

Note: Where there are no resources for quality control contact this aspect to a Public Analyst.