Here in this blog i expalin about the important parameter LATHER in determining the TFM of a soap...!
Lather is the foam or the froth created by soap when stirred in water or while bathing or washing hands. It is an important parameter for acceptability of soaps. To test the soap’s ability to create lather, five grams of scrubbed and grated piece of each soap brand was thoroughly mixed in water and the lather generated was measured with the measuring cylinder.
• All the brands passed in the lather test.
• Higher scores were given on the basis of the higher lather generated. N Moisture Content, % by Mass There is no specific requirement of moisture content as per the national standard. It should not be too high or too low.
• Superia Silk contained the lowest moisture followed by Margo and Hamam. They were rated higher.
• Medimix contained the maximum moisture and scored lowest. N Mushiness (Loss In Mass Due To Mushiness); Gram/50 Cm2
Mushiness is the property of soap to absorb the water and get dissolved in it. This test was done for all the brands and the loss in mass in soap due to its mushiness property was measured.
• Superia Silk followed by Mysore Sandal were least in mushiness, indicating minimal loss of the soap in wet conditions.
• Park Avenue followed by Vivel had maximum mushiness among the tested lot and hence scored low. N Matter Insoluble in Alcohol, % by Mass IS requirement for Grade 1 is 2.5 per cent maximum. IS requirement for Grade 2 and Grade 3 is 10 per cent maximum.
• All the brands were found well below the maximum permissible limit for matter insoluble in alcohol. N Free Carbonated Alkali, % by Mass Standard requirement is1.50 per cent maximum. The free alkali in soap is usually made of hydroxide and carbonate of sodium or potassium or of both. Alkalinity may also be due to the presence of sodium silicate or other alkaline compounds that are sometimes added in the soap. It is a usual practice to include such alkalinity as ‘carbonated alkali’.
• All brands had less than 1 per cent of free carbonated alkali. N Chloride (As Nacl), % by Mass Standard requirement is 1.50 per cent maximum.
• No brand crossed the maximum permissible limit. N Free Caustic Alkali (As Naoh), % by Mass IS requirement is just 0.05 per cent maximum.
• All the brands contained lower than the maximum limit and hence got equal scores. N Rosin Acid (% by Mass of Total Fatty Acid) Standard requirement is just three per cent maximum.
• All the brands contained rosin acid between 0.54 per cent and 1.98 per cent – well within the maximum permissible limit.
To be continued..........
Please share your comments.......
Above matter has been provided through an anonymous mail.....
It may have some corrections......
All the images are collected from various sites....
Lather is the foam or the froth created by soap when stirred in water or while bathing or washing hands. It is an important parameter for acceptability of soaps. To test the soap’s ability to create lather, five grams of scrubbed and grated piece of each soap brand was thoroughly mixed in water and the lather generated was measured with the measuring cylinder.
• All the brands passed in the lather test.
• Higher scores were given on the basis of the higher lather generated. N Moisture Content, % by Mass There is no specific requirement of moisture content as per the national standard. It should not be too high or too low.
• Superia Silk contained the lowest moisture followed by Margo and Hamam. They were rated higher.
• Medimix contained the maximum moisture and scored lowest. N Mushiness (Loss In Mass Due To Mushiness); Gram/50 Cm2
Mushiness is the property of soap to absorb the water and get dissolved in it. This test was done for all the brands and the loss in mass in soap due to its mushiness property was measured.
• Superia Silk followed by Mysore Sandal were least in mushiness, indicating minimal loss of the soap in wet conditions.
• All the brands were found well below the maximum permissible limit for matter insoluble in alcohol. N Free Carbonated Alkali, % by Mass Standard requirement is1.50 per cent maximum. The free alkali in soap is usually made of hydroxide and carbonate of sodium or potassium or of both. Alkalinity may also be due to the presence of sodium silicate or other alkaline compounds that are sometimes added in the soap. It is a usual practice to include such alkalinity as ‘carbonated alkali’.
• All brands had less than 1 per cent of free carbonated alkali. N Chloride (As Nacl), % by Mass Standard requirement is 1.50 per cent maximum.
• No brand crossed the maximum permissible limit. N Free Caustic Alkali (As Naoh), % by Mass IS requirement is just 0.05 per cent maximum.
• All the brands contained lower than the maximum limit and hence got equal scores. N Rosin Acid (% by Mass of Total Fatty Acid) Standard requirement is just three per cent maximum.
• All the brands contained rosin acid between 0.54 per cent and 1.98 per cent – well within the maximum permissible limit.
To be continued..........
Please share your comments.......
Above matter has been provided through an anonymous mail.....
It may have some corrections......
All the images are collected from various sites....
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