Sodium Dodecyl Sulfate
time:2012-09-07 15:46:25,count:0
4. Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in toothpastes or other cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
(c), Used in medicine, must comply with pharmacopoeia execution.
Major Uses
1. Personal care products
Cleansing agent, foaming agent, emulsifying agent, denaturant in personal care products.
For example, main ingredient or auxiliary ingredient for cleansing agent, foaming agent in toothpaste, shampoo, hand sanitizer and other products.
Sodium lauryl sulfate is not recommended as the primary surfactant because of irritant. When sodium lauryl sulfate used as a co-surfactant, usage should not be higher than 10%[9] (by mass).
The products that contact with the skin for a long time, not recommended to use sodium lauryl sulfate
(1), Toothpaste
(1a), Fluorine-containing transparent toothpaste
Formula:
Sorbitol (70% solution)  60 (wt, the same below.)
Fumed silica  23
Glycerin  4.2
Sodium saccharin  0.2
Sodium lauryl sulfate  1.8
Titanium Dioxide  0.2
Methyl paraben  0.1
Sodium carboxymethyl cellulose  0.8
Sodium monofluorophosphate  0.76
Colourant  appropriate amount
Flavor (essential oil)  1.5
Deionized water  7.44
Process: sodium carboxymethyl cellulose disperses in glycerin, add water and sorbitol (70% solution), swell; mix with other ingredients, grind, homogenize, fill.
(1b), Fluorine-containing opaque toothpaste
Formula:
Calcium hydrogen phosphate  45
Glycerin  14
Sodium saccharin  0.2
Sodium lauryl sulfate  1.8
Sorbitol  4
Methyl paraben  0.1
Sodium carboxymethyl cellulose  0.8
Titanium Dioxide  0.2
Sodium monofluorophosphate  0.76
Colourant  appropriate amount
Flavor (essential oil)  1.5
Deionized water  31.64
Process: sodium carboxymethyl cellulose disperses in glycerin, add water, swell; mix with other ingredients, grind, homogenize, fill.
(1c), Anti-calculus, anti-plaque toothpaste (US 7,192,571)
Formula:
Hydrated alumina  30
Sorbitol (70% solution)  30
Xylitol  1
Calcium carbonate  5
Sodium lauryl sulfate  2
Xanthan gum  0.2
Calcium pyrophosphate  5
Network-based concentrated phosphoric acid  5
Carrageenan  0.5
Sodium Fluoride  0.11
Sodium monofluorophosphate  0.38
Flavor  1
Sodium saccharin  0.1
Deionized water  19.71
Process: xanthan gum and carrageenan disperse in glycerin, add water and sorbitol (70% solution), swell; mix with other ingredients, grind, homogenize, fill.
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