Gum Rosin Grade WW - Brazil
- IUPAC Name
- abietic acid-rich terpene resin
- Molecular Formula
- C20H30O2 (abietic acid dominant)
- Synonyms & Trade Names
- Gum rosin WW; Colophony; Rosin; Resin acids; E915
- Purity / Assay (%)
- WW grade; acid value 165-180
- Grade / Quality Level
- Technical Grade
- Physical Form
- Solid
Technical Document
Brief Overview
Gum Rosin Grade WW, or Water White Rosin, is a premium-quality resin derived from pine trees. The term "WW" signifies its water-white or pale yellow color, indicating a high level of purity. This grade is renowned for its clarity and transparency, making it a preferred choice in various industries.
Manufacturing Process
Gum Rosin is produced from the crude pine resin collected from pine trees. The resin is subjected to distillation and the distillation process is carried out in large copper stills. The volatile liquid terpene components would separate from the mixture as it vaporizes at a temperature between 100 to 160°C, leaving behind fluid rosin as the distillate. This fluid rosin is collected and purified by passing it through straining wadding. The condensate left behind is called turpentine oil.