Product name: Colophony
Other name: Gum rosin
CAS No.: 8050-09-7
Molecular formula: C20H30O2
Molecular weight: 302.44
Appearance: Yellow transparent solid
Application: It is used in paper, ink, rubber, paints and varnish, soap, various adhesives, glue, synthetic resins, chewing gum, food, construction materials, electrical industry and other chemical industries.
Specification:
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Name of Index
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X
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WW
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WG
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N
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M
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K
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Color
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slightly yellow
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light yellow
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yellow
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deep yellow
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yellow brown
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yellow red
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|
conforms to color requirements of rosin for standard glass
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Appearance
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transparent
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Softening Point (R. & B.) o C Min
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76
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75
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74
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Acid Value
|
166
|
165
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164
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mg KOH/g Min
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||||||
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Unsaponifiable Matter %Max
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5
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5
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5
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Insoluble Matter in Alcohol %Max
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0.03
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0.03
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0.04
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Ash %Max
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0.02
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0.03
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0.04
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