This product complies with the national standard GBB145-87. It is manufactured in Guangxi and Guangdong provinces. It appears as a brittle, transparent amorphous solid ranging in color from pale yellow to reddish brown. Its primary component is resin acid, which readily oxidizes and darkens when exposed to air.
Appearance: Transparent solid
Color: Yellow (complies with the color standard for rosin-colored glass)
Softening point (ring-and-ball method), °C: 70-80
Acid value, mg KOH/g: 155-166
Unsaponifiable matter content, %: ≤ 5
Ethanol-insoluble matter, %: ≤ 0.03
Ash content, %: ≤ 0.03
Appearance: Transparent solid
Color: Yellow (complies with the color standard for rosin-colored glass)
Softening point (ring-and-ball method), °C: 70-80
Acid value, mg KOH/g: 155-166
Unsaponifiable matter content, %: ≤ 5
Ethanol-insoluble matter, %: ≤ 0.03
Ash content, %: ≤ 0.03








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