Disproportionated Rosin
time:2012-10-05 16:28:30,count:0

Disproportionated Rosin
Alias
 
Category
Anionic surfactants-Carboxylate
CAS No.
8052-47-9
Structural Formula
Main Ingredient:
Properties
Appearance: yellowish to yellow-red glassy solid, blue-violet fluorescence.
Solubility: insoluble in water. soluble in benzene, ethanol.
Stability: stable.
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, lubricating, cleansing, antiseptic, preservative, emulsifying abilities.
Ingredient description: mixture of dehydroabietic acid, dihydroabietate acid and tetrahydro abietic acid. dehydroabietic acid is main component.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
choicest quality
first grade
abietic acid*, %, ≤
0.1
0.5
 
dehydroabietic acid, %, ≥
52
45
 
softening point (ring and ball method), ℃, ≥
75
75
 
acid value, mg KOH/g, ≥
155
150
 
unsaponifiable material, %, ≤
10
12
 
*: abietic acid content must be strictly controlled, content must be below 0.5%.
Major Uses
Emulsifying agent in synthetic rubber polymerization.
Adhesives in water-soluble pressure-sensitive adhesives.
Tackifier in adhesives.
Coloring vector in printing ink.
Use as dispersing agent, emulsifying agent.
Manufacturers
 
Update: 20131114(1);

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