Propyl Paraben
Introduction
Chemical name : Propyl 4-hydroxybenzoate
CAS # : 94-13-3
Molecular formula : C10H12O3
Molecular weight : 180.20
Physical and chemical properties : white crystal ,easily soluble in alcohol and ether, nearly insoluble in water,Relative density(d4102 )1.0630,refractive index (nD102)1.5050
Specification
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Item
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Index
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Appearance
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white powder
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Purity (in dry basis), %
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98-102
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Melting point, ℃
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96-99
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Loss on drying, %
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≤0.5
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Residue on ignition, %
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≤0.1
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Acidity
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up to standard
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4-Hydroxybenzoic acid and Salicylic acid
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up to standard
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Solubility
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easily soluble in alcohol, ether, acetone, lightly soluble in water
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Application
In food preservative effect:propyl paraben is internationally recognized as broad-spectrum efficient food preservatives,is widely used in soy sauce, vinegar and other spices, pickled products, baking food, sauce products, beverage, wine and fruit and vegetable preservation, etc,
Inhibiting microbial growth and reproduction, prolong food to save time, prevent rotting matter.
The role of anti-corrosion in cosmetics:
In the process of the use and production of cosmetics, could be affected by different degree of microbial contamination, the role of preservatives mainly inhibit microbial growth and reproduction, extend the shelf life of products, to ensure that during the shelf life and use not bad because of pollution.
