Kleimenov, B. V. published the artcileMechanism of the action of organic substances containing a trichloromethyl group in reducing friction under high-load conditions, Related Products of chlorides-buliding-blocks, the publication is Teoriya Smazochnogo Deistviya i Novye Materialy (1965), 48-52, database is CAplus.
Acids containing the CCl3 group have high antiwear properties. These properties decrease considerably after replacing the H of the acid by an aliphatic radical or a base. In the presence of HOAc, the critical load is 96 kg., while with Cl3CCO2H, it is ≤300 kg. When CCl3P(O)(OBu)2 is applied, the critical load is lower than if a simple acid is used. Heating of CCl3P(O)(OBu)2 at 160-80° results in elimination of the hydrocarbon radical with formation of butylene, CCl3P(O)(OBu)OH, and CCl3P(O)(OH)2. Heating of CCl3P(O)(OH)2 to 325° gives HCl and CO. No free Cl is formed. Two varieties of interaction between the additive and the metal surface occur: chemisorptive saturation of free bonds of the surface atoms of the metal without destroying the crystal lattice linkage, or full chem. linkage of the reagent with the metal atoms which may destroy the crystal lattice linkage. Thus, 2 antagonistic actions occur: the formation of a chem. modified surface and its destruction. The decrease of wear and seizing is achieved by the acceleration of the chem. modification. The presence of the CCl3 group polarizes the additive mol. and increases the viscosity of chemisorption onto the surface of the metal. At high temperature of the friction zone, the additive undergoes thermal decomposition and formation of (trichloromethyl)phosphonic acids. These acids interact with the metal to form salts and modify the metallic surface. The interaction is an ionic oxidation-reduction and can be represented by the equation Fe + 2H+ = Fe++ + 2H. The addition of the CCl3 group increases the H+ concentration in the friction zone, which is one of the main reasons for the antiwear properties of compounds containing the CCl3 group.
Teoriya Smazochnogo Deistviya i Novye Materialy published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Related Products of chlorides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics