| PIROCTONE OLAMINE |
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Piroctone olamine is a broad spectrum of microbiocide/microbiostat, may be used in formulating antidandruff shampoo, hair keep and hair care, soap, etc.. It is also used as preservative and thickening agent. |
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| CHEMICAL NAME |
1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2-(1H)pyridinone,2-aminoethanol salt |
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| CAS No. |
68890-66-4 |
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| EINECS NO. |
272-574-2 |
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| STRUCTURAL FORMULA |
 |
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| CHARACTERISTICS |
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Solubility:Freely soluble in 10% ethanol in water; soluble in solution containing surfactants in water or in 1%-10% ethanol; slightly soluble in water and in oil. The solubility in water varies by pH value, and is a litter larger in neutral or weak basic solution than in acid solution.
pH: 8.5-10.0 (1% suspension in water, 20°C)
pKa: 7.4
Thickening: Piroctone olamine increases the viscosity of many surfactant system. |
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| STABILITY |
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a) pH: Stable in solution of pH 3 to pH 9.
b) Heat: Stable to heat, and to short time of high temperature above 80°C Piroctone olamine in shampoo of pH 5.5-7.0 remains stable after one year of storage at a temperature over 40°C
c) Light: Decompose under direct ultraviolet radiation. So it should be protected from light.
d) Metals: An aqueous solution of piroctone olamine degrades in the presence of cupric and ferric ions. |
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| Compatibility |
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Piroctone olamine is compatible with many cosmetic ingredients, especially with cationic surfactants (tetramine salt) and cationic active components. In some cases, this re-mixture increase the solubility of piroctone olamine. |
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| SPECIFICATION |
| Appearance: |
White or slightly yellow crystalline powder |
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| Identification: |
Positive |
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| Content: |
Not less than 98% |
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| Melting point: |
130 - 135°C |
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| Loss on drying: |
Not more than 2.0% |
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| Ash (SO4): |
Not more than 0.2% |
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pH value
(1% aq. solu. 20°C ): |
8.5 - 10.0 |
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| Heavy metals: |
Not more than 20ppm |
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| APPLICATION |
| Antidandruff (hair keep): |
0.1-0.8% active ingredient. |
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| Antidandruff (fixing agent): |
0.05-0.2% active ingredient. |
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| Antidandruff (hair emulsion): |
0.1-0.3% active ingredient. |
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| Antidandruff (hair supporting): |
0.05-0.1%active ingredient. |
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| Preservative: |
0.2-0.5% active ingredient. |
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| Smell-eliminating agent: |
0.2-0.5% active ingredient. |
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| Smell-eliminating scented soap: |
0.2-0.5% active ingredient. |
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| PACKAGING |
25kg drum or carton |
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