Paraben series
The paraben series is used as an antiseptic, which is used the most widely in the worldwide with the large dosage at high efficiency. The application domain refers to medicine, food, beer, drinks, tobacco, feed, toiletry, detergent, paper-making, dope, and some other industrial fields.
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Product
Item
|
Methyl Paraben
|
Ethyl Paraben
|
Propyl Paraben or Nipasol
|
Butyl Paraben
|
|
Molecular Formula
|
C
8
H
8
O
3
|
C
9
H
10
O
3
|
C
10
H
12
O
3
|
C
11
H
14
O
3
|
|
Appearance
|
White crystalline powder
|
White crystalline powder
|
White crystalline powder
|
White crystalline powder
|
|
Purity( on dry base )
|
≥99%
|
≥99%
|
≥99%
|
≥99%
|
|
Melting point
|
125~128℃
|
115~118℃
|
95~98℃
|
67~72℃
|
|
Lose on drying
|
≤0.5%
|
≤0.5%
|
≤0.5%
|
≤0.5%
|
|
Residue on ignition
|
≤0.1%
|
≤0.05%
|
≤0.05%
|
≤0.1%
|
|
Acidity
|
qualified
|
qualified
|
qualified
|
qualified
|
|
Sulfate(SO
4
2 -
)
|
≤0.024%
|
≤0.024%
|
≤0.024%
|
≤0.024%
|
|
Heavy metals（Pb）
|
/
|
≤0.001%
|
≤0.001%
|
≤0.001%
|
|
（As）
|
/
|
≤0.001%
|
/
|
≤0.001%
|
|
P-Hydroxybenzoic Acid and Salicylic Acid
|
≤0.1%
|
/
|
/
|
/
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Dosage:
Below the component of 0.2%-0.5%, the arrange of PH is between 4-8
Storage and Packing:
inside packing: 5kg/bag, with plastic bag.
Outside packing: 25kg/cardboard drum, with plastic around the inner of the cardboard drum. Keep the product in the shade, and the validity term is 2 years.
