Rosin
time:2012-10-05 16:22:03,count:0

Rosin
Alias
 
Category
Anionic surfactants-Carboxylate
CAS No.
8050-09-7
Structural Formula
Principal component:
Properties
Appearance: pale yellow to yellow-red glassy solid.
Solubility: insoluble in water. soluble in sodium hydroxide. soluble in petroleum ether, benzene, ethanol.
Stability: stable. easily oxidized.
Risk: irritation, irritation to skin, eye.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent film-forming, dispersing, emulsifying, cleansing, lubricating, preservative, antiseptic abilities.
Synthesis
 
Quality standards & test methods
1. gum rosin
item
physical and chemical indexes
test methods
superfine
1
2
3
4
5
softening point (ring and ball  method), ℃, ≥
76
75
74
 
acid value, mg/g, ≥
166
165
164
 
unsaponifiable material, %, ≤
5
5
6
 
ethanol insoluble material, %, ≤
0.03
0.0.3
0.04
 
ash, %, ≤
0.02
0.03
0.04
 
               
Major Uses
Used in preparation of resin acid esters. resin acid esters can be used in paint, plastics, resin, food additives.
Widely flux in electronic industry.
Carrier, drier, film-forming agent in paint, printing ink.
Softening agent in rubber.
Use as pharmaceutical ingredient.
Antioxidant, conditioning agent, fungicide in personal care products.
Manufacturers
 
Update: 20131114(1);

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