Phone 9913372218
narayan_corp@rediffmail.com

Silicone defoamer compound P-7 is widely used as a versatile defoamer in general industrial applications using Petroleum Oil Solvents and aliphatic and Aromatic liquids medium.

TYPICAL PROPERTIES
Industrial Operations
Adhesives   
 Paper Coating Processes
Asphalt
 Paper Production Processes
Cutting Oils
Petroleum Pitch
Detergents & Soaps
Propane Gas
Gas Scrubbing
Rubber Lactices
Glycol Dehydrates
Resins and Varnishes
Insecticides
Salt Solutions
Oil Quenche Baths
Steel-picking Solutions
Polishes
Vacuum Distillations
Wool Facts 
Wire Drawing compounds

As an aid to improve the visual field in gastroscopic examination.

HOW TO USE

Amount
Silicone Defoamer Compound P-7 is effective in very low concentrations. 1 to 50 gms of Compound P-7 per ton foamer is Sufficient to suppress most foams. For any new industrial application, the user may start with a concentration of 20 Gms per ton. Then increase or decrease this concentration until most economical use level is established.

Solvent Dispersion
In most industrial application, it is diluted with solvent then added to foamer, dispersions may be made by Butyl Alcohol, Toluene, Xylene, Kerosene, Ethyl ether, Chloroform, and many other solvents. Comparative tests using different diluents should be run if it is desirable to determine the most suitable and economical diluents to use for any particular process or product. Freshly prepared dispersion should be used for maximum efficiency.

SPECIFICATION FOR SILICONE DEFOAMER COMPOUND P-7
Test     
Specification Requirements
Defoaming performance 
15 Seconds Max at 50 p.p.m.
Color
Transparent
Consistency 
Liquid thin
Sp. Gravity at 25°C 
0.857 to 0.9
Suitable Diluents  
Aliphatic, Aromatic and Chlorinated Solvents
Odor
Very Slight
Shelf Life
1 Year

Method of Performance Test

  1. Prepare a sample of defoamer by mixing 0.5 gm of sample and 50 c.c. Butyl Alcohol.
  2. Take 1 gm Triton x 100 in a small flask and 99 c.c. distilled water.

Add 0.5 of sample from (a) and shake the flask vertical wrist movement for 10 seconds, then place the flask on the table and count the time required for the foam to collapse. (The point at which a portion of liquid surface can be observed)
Maximum time should be 15 seconds at 50p.p.m. as added above.