Gum Rosin

CAS NO.: 8050-09-7
EINECS NO.: 232-475-7
Molecular formula: C20H30O2
SYNONYMS: Colophony; Rosin, Gum; Pine rosin; Mixture of resin acids;

Abietic acid

PHYSICAL AND CHEMICAL PROPERTIES:
PHYSICAL STATE yellow crystalline solid
MELTING POINT 70 - 80
BOILING POINT 250 C
SPECIFIC GRAVITY 1.06 - 1.08
SOLUBILITY IN WATER Negligible
NFPA RATINGS: Health: 2; Flammability: 1; Reactivity: 0
STABILITY: Stable under ordinary conditions.
TOXICITY: Oral rat LD50: 3.0 mg/kg

Special Properties:
Natural organic compound, mainly composed of resins, possesses chemical activity when dissolved in many organic solvents.

Specification:

GUM ROSIN
Name of Index	X	WW	WG	N	M	K
Color	slight yellow	Light yellow	yellow	Deep yellow	yellow brown	yellow red
conforms to color requirements of rosin for standard glass
Appearance	Transparent
Softening Point (R. & B.)	76 ℃ min		75℃ min		74℃ min
Acid Value (mg KOH/g)	166 min		165 min		164 min
Unsaponifiable Matter	5％ max		5％ max		5％ max
Insoluble Matter in Alcohol	0.03％ max		0.03％ max		0.04％ max
Ash	0.02％ max		0.03％ max		0.04％ max

Executive Standard: National Standard GB/T8145-2003 & GB/T8146-2003
Uses:
Important raw material for the manufacture of soap, paper, paint, and rubber; intermediate material for synthetic organic chemicals.
Packing, Storing and Transporting:
In galvanized Iron drums of about 225/230kgs net each.
Must be kept away from heat and flame.

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