Damar Gum

Damar Gum

Synonyms:

Dammar resin, damar gum, damar resin, dammar.

Defination:

Dammar gum is the dried exudatation from trees of agathis sp, hopea sp, balanocarpus sp, anisoptera sp and vatica papua. It consists of a complex mixture of acidic and neutral terpenoid compounds together with polysaccharide material.


Description:

Cride dammar gum occurs as irregular white to yellow or brownish tears, fragments or powder. Sometimes admixed with fragments of bark. Refined grades are white to yellowish and are free of fragments of ligneous matter dammar gum is practically odourless, although refined grades may carry and odour of the essential oils used in the refining process.

Functional Uses:

Clouding agent, glazing agent.

Characteristics:


Identification tests:

  • Solubility: insoluble in water very soluble in toluene information required.
  • Melting range information required.
  • Softening point not less than 110. (method required)
  • Acid value not more than 30.

   
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