Shanghai Shangyi Chemical Technology Co., Ltd

Gum rosin

• Category :

  Other Chemicals/Forest chemicals

• Synonyms :

  Disproportionated rosin;Colophony;Pine rosin;Rosin;Rosin Solder Flux Fume;Wood rosin;(4aR)-7-isopropyl-1,4a-dimethyl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid;

• CAS NO :

  8050-09-7

• EC NO :

  232-475-7

• Molecular Formula :

  C₂₀H₃₀O₂

• Molecular Weight :

  302.451

• Main Specifications :

  Name of Index: X, WW, WG, N, M, K

• InChI :

  InChI=1/C20H30O2/c1-13(2)14-6-8-16-15(12-14)7-9-17-19(16,3)10-5-11-20(17,4)18(21)22/h7,12-13,16-17H,5-6,8-11H2,1-4H3,(H,21,22)/t16?,17?,19-,20?/m1/s1

• Packing :

  In galvanized iron drums of about 225/230kgs net each

• Product description :

  Specification:

  GUM ROSIN
  Name of Index	X	WW	WG	M	K
  Color	slight yellow	light yellow	yellow	yellow brown	yellow red
  Appearance	Transparent solid
  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		0.02% max	0.04% max
  Special Properties of Gum Rosin: Natural organic compound, mainly composed of resins, possesses chemical activity when dissolved in many organic solvents.
  Uses of Gum Rosin: At present, most gum rosin product is used for the manufacturing of paper, paint, soap, adhesive, rubber and printing ink. Since rosin is easily softened and oxidized, in the oil paint industry, the carboxylation reaction of resin acid is usually employed to produce resinate for further use. While in the producing of synthetic rubber and printing ink, resin acid is changed into disproportionate rosin, polymerized rosin, hydrogenated rosin, etc for further use by its double bond reaction.
  Packing, Storing and Transporting of Gum Rosin: In galvanized iron drums of about 225/230kgs net each, must be kept away from heat and flame.

   

• Uses :

  It is a kind of natural resin, mainly composed of various kinds of resin acids, it can be dissolved easily in many types of solvents, and has special chemical activity. So it is an important raw material for the manufacture of paper, coatings, inks, etc.

• Molecular Structure :