USD $3.00-10.00 / Kilogram
USD $10.00-16.00 / Kilogram
USD $70.00-90.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $100.00-150.00 / Kilogram
chemical name: propyl p-hydroxybenzoate
synonyms: 4-hydroxybenzoic propyl ester; propyl p-hydroxybenzoate; propyl nipasol
cas no.: 94-13-3
molecular formula: c10h12o3
e-code:e216
properties: white crystalline and easily dissolved in alcohol and ether, but not dissolved in water. its relative density (d4102) is 1.0630 and index of refraction is (nd102) 1.5050.
application:
propyl paraben is mainly used as antiseptics in foodstuff, medicine and cosmetics. it can also be used in feed as antiseptics.
packing& storage:
25kg/fiber drum.
stored in a cool, dry and ventilated place.
uality specification:
item
|
specification
|
||
gb 8851-2005
|
usp 29-nf24
|
bp 2000
|
|
characters
|
/
|
/
|
colorless crystals or white crystalline powder
|
purity
(on dry base) % ≥ |
99.0
|
98.0-102.0
|
99.0-100.5
|
melting point °c
|
95-98
|
96-99
|
96-99
|
acidity
|
qualified
|
qualified
|
qualified
|
sulfate(so42-) % ≤
|
0.024
|
/
|
/
|
heavy metal(pb) % ≤
|
0.001
|
/
|
/
|
heavy metal(as) % ≤
|
0.0001
|
/
|
/
|
loss on drying % ≤
|
0.50
|
0.50
|
/
|
residue % ≤
|
0.05
|
0.01
|
0.10
|
p-hydroxybenzoic acid and salicylic acid ≤
|
qualified
|
/
|
/
|
appearance of solution
|
/
|
/
|
clear
|
identification
|
/
|
qualified
|
/
|
organic volatile impurities
|
/
|
qualified
|
/
|
related substances
|
/
|
/
|
qualified
|
usage: this product is mainly used as antiseptics for foodstuff, medicine and cosmetics. it is also used in feed as antiseptics.