Ethyl p-Hydroxybenzoate
Basic Information
Product Number:SX2003
Chemical name: 4-Hydroxybenzoic acid ethyl ester
Product name:Ethyl 4-hydroxybenzoate
Molecular formula:C9H10O3
Molecular weight:166.18
CAS No.:120-47-8
EINECS No.: 204-399-4
Physical and chemical properties:
Melting point(℃):116~118
Boiling point(℃):297-298℃.
Appearance:White crystal with a little bitter taste.
Solubility:Easily soluble in alcohol, ether and acetone, almost insoluble in water.
Detailed Description:
Quality standard
Item
|
Index
|
GB 1886.31-2015
|
BP
|
USP
|
Appearance
|
White crystalline powder
|
Colorless crystal or white crystalline powder
|
/
|
Content (dry basis) %≥
|
99.0-100.5
|
99.0-100.5
|
98.0-102.0
|
Melting point℃
|
115-118
|
115-118
|
115-118
|
Acidity
|
/
|
Qualified
|
Qualified
|
Sulfate (SO42-) %≤
|
0.024
|
/
|
/
|
Heavy metal (Pb) %≤
|
0.001
|
/
|
/
|
Arsenic (AS) %≤
|
0.0001
|
/
|
/
|
Drying loss %≤
|
0.50
|
/
|
0.50
|
Residue on ignition %≤
|
0.05
|
0.1
|
0.1
|
Mass fraction of free acid (PHBA)% ≤
|
0.55
|
/
|
/
|
Related substances
|
/
|
Qualified
|
Qualified
|
Appearance
|
/
|
Clear and transparent
|
Qualified
|
Identification test
|
/
|
Qualified
|
Qualified
|
Application:
The product is mainly used as preservative of foods, cosmetics, drugs, and feeds.
Packing:
Plastic bag, 1kg/bag, 20 bags/carton, or cardboard drum lined with plastic bag, net weight is 25kg or 50kg.
*Special requirements can be negotiated
|