Zhejiang Shengxiao Chemicals Co.,Ltd

Item No. #: SX1001
Chemical name: P-hydroxybenzoate
Product Name: Hydroxy benzoin acid
Molecular formula: C7h6o3
Molecular Weight: 138.12
Cas#:99-96-7 Physical and chemical properties: This product is white powder crystallization, tasteless, odorless, mouth taste when there is a sense of hemp tongue. Easily soluble in hot water and alcohol, ether, acetone, slightly soluble in cold water, benzene, insoluble in carbon.
Dissolved in 125 parts of cold water, the relative density of 1.46.
Product quality standard: Q/sh 005-2014
Project
Indicators
Aggregation level
Industrial Grade
Appearance
White crystalline powder
White crystalline powder
Content (with dry base)%≥
99.6
99.0
Melting ℃
214-217
212-216
Smell
Tasteless
Tasteless
Solubility
Clear and transparent
Clear and transparent
Dry weightlessness%
0.20
0.50
Chroma (Platinum-cobalt) ≤
10
40
Ash% ≤
0.02
0.15
Sulfate (so42-) ≤
0.01
0.05
Chloride (cl) ≤
0.005
0.02
Phenol%
0.01
0.10
Salicylic acid ≤
0.02
0.10
4-hydroxy-ppm≤ phthalate
500
/
Methanol insoluble substance ppm≤
50
/
Potassium (k +) ppm
5
/
Sodium (NA) ppm≤
5
/
Iron (FE) ppm≤
5
/
Calcium + magnesium (ca2++mg2+) ppm≤10
/
Use: This product can be used as preservatives, dyes, pharmaceuticals and injection molding intermediates, and alcohol esters can be used as the main raw materials of polymer liquid crystalline polymers, pesticides intermediates raw materials.
Packaging: This product is two plastic (two-layer) woven packaging, each bag net weight 25kg, or PP bag, net 500kg/bag or 1000kg/bag. * Special requirements may be discussed separately