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TESTING AND ANALYSES OF ORGANIC ADDITIVES

Mineral and synthetic oils

  • Identification and chemical characterization
  • Determination of paraffinic, naphtenic and aromatic hydrocarbons content in mineral oils
  • Determination of viscosity (dynamic and kinematic)
  • Determination of refractive index and density
  • Determination of flash point (in open and closed cup)
  • Determination of acid or base number and saponification number
  • Determination of iodine number
  • Determination of chlorine and sulphur content
  • Determination of water content
  • Determination of volatility


Antidegradants, crosslinking agents, processing additives

  • Identification
  • Detection of impurities
  • Determination of melting point and melting enthalpy
  • Determination of softening point of resins
  • Determination of acid number, saponification number and hydroxylic number of some resins
  • Determination of nitrogen, sulphur and chlorine content
  • Determination of carrier content


Solvents

  • Identification
  • Qualitative and semi-quantitative determination of solvent mixture components
  • Determination of refractive index
  • Determination of water content
  • Determination of non-volatile impurities

     
Example of developed TLC plate (separated rubber compound components)   Separation of vulcanizate and compound extracts by preparative MPLC

 

Fraction concentration on rotavapor
click to enlarge


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