இந்த தயாரிப்பை பகிரவும் :
Gum Rosin Grade WW - China
- தோற்றம்
- : China
- CAS எண்
- : 8050-90-7
- HS குறியீடு
- : 3806.10.00
அடிப்படை தகவல்
- 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
- Concentration
- : Pure substance
- Appearance / Color
- : White to off-white solid
- Odor
- : Pine/turpentine
- Density (g/cm³)
- : 1.0800
- Solubility in Water
- : Insoluble in water
- Signal Word
- : Warning
- GHS Hazard Class
- : Skin sensitizer; Aquatic hazard
- H-Statements
- : H317|H410
- P-Statements
- : P261|P272|P273|P280
- REACH Status
- : Registered
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 10
- Storage Conditions
- : Cool, dry; away from oxidizers
இந்த தயாரிப்பை பகிரவும் :
Brief Overview
Gum Rosin Grade WW is a transparent, pale to almost colorless resin extracted from pine trees, primarily the slash pine (Pinus elliottii) and longleaf pine (Pinus palustris). The "Water White" designation denotes a high degree of purity, resulting in a resin with minimal coloration. It is obtained through the process of tapping living pine trees and collecting the exuded resin.
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.
