This product complies with national standard GBB145-87. Origin: Guangxi, Guangdong. Appearance: amorphous solid ranging from pale yellow to reddish-brown, brittle and transparent. Primary component: resin acids. Prone to oxidation and darkening when exposed to air.
Appearance: Pale yellow or off-white
Color: Yellow (Meets requirements for rosin color grade glass standard color blocks)
Softening Point (Ring and Ball Method), °C: 90-100
Acid Value mgKOH/g: ≥20-30
Unsaponifiable Matter Content, %: ≤3
Ethanol Insolubles, %: ≤0.01
Ash Content, %: ≤0.01
Appearance: Pale yellow or off-white
Color: Yellow (Meets requirements for rosin color grade glass standard color blocks)
Softening Point (Ring and Ball Method), °C: 90-100
Acid Value mgKOH/g: ≥20-30
Unsaponifiable Matter Content, %: ≤3
Ethanol Insolubles, %: ≤0.01
Ash Content, %: ≤0.01









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