![]() The apparent equivalent weight of, for example, a sulfonic acid, where two or more acidic components, in this case the sulfonic acid product and sulfuric acid impurity, are present. Nonionics – the temperature at which a product becomes turbid when it is warmed – (see RFF 705.10.55 – CLOUD POINT). The separation of the components of a mixture by use of differences in their interactions with a stationary medium.Īnionics – the temperature at which a product becomes turbid when it is cooled under specific conditions. (see RFF 750.10.01 – SURFACTANTS).Ī process in which a metal ion is coordinatively bound to an organic molecule forming a heterocyclic ring. (see RFF 705.10.09 – BUFFERS)īinds hardness ions, calcium and magnesium, to remove them from solution either as a soluble complex or as a precipitate.Ī surfactant in which the hydrophile is positively charged. The base carrier fluid, usually a refined petroleum fraction or synthetic fluid, into which additives are blended to produce finished lubricants.Ī chemical agent which destroys microscopic and sub-microscopic organisms.Ī heavy lubricant stock with a low pour point used in finished blends to provide film strength and to reduce the amount of oil consumed.Ī solution containing both a weak acid and its conjugate base which resists changes in pH brought on by addition of an acid or base to the solution. Contains a high degree of closed ring methylene groups.Ī type of petroleum oil fluid derived from paraffinic crude oil, containing a high proportion of straight chain saturated hydrocarbons. (see RFF 750.10.01 – SURFACTANTS).Īn additive used to suppress the foaming characteristics of a formulation in service.Ī chemical which either destroys or inhibits the growth of microscopic and sub-microscopic organisms.Ĭompounds which form, or react to form, thin films on highly loaded parts in operation to prevent metal to metal contact, thereby reducing friction at the point of contact.Ī type of petroleum oil fluid derived from naphthenic crude oil. (see RFF 750.10.01 – SURFACTANTS)Ī surfactant in which the hydrophile is negatively charged. The product of a reaction between an olefin, such as 1-dodecene or Tetramer-M, and an aromatic hydrocarbon, such as benzene, toluene or diphenyl oxide.Ī surfactant in which the hydrophile has both positive and negative charges. ![]() For example triethanolamine (TEA), monisopropanolamine (MIPA). The surface retention of solid, liquid or gas molecules, atoms or ions by a solid or liquid.Īn amine where some or all of the alkyl groups attached to the nitrogen contain hydroxyl functionality. Almost every product has an active specification.Īny material added to a base stock to change its properties, characteristics or performance. The amount, in weight %, of titratable surfactant in a solution or formulation. ![]() Apart from catering students preparing for JEE Mains and NEET, PW also provides study material for each state board like Uttar Pradesh, Bihar, and others.The penetration of substances into the bulk of a solid or liquid. Physics Wallah strives to develop a comprehensive pedagogical structure for students, where they get a state-of-the-art learning experience with study material and resources. With our affordable courses like Lakshya, Udaan and Arjuna and many others, we have been able to provide a platform for lakhs of aspirants.įrom providing Chemistry, Maths, Physics formula to giving e-books of eminent authors like RD Sharma, RS Aggarwal and Lakhmir Singh, PW focuses on every single student's need for preparation. Physics Wallah's main focus is to make the learning experience as economical as possible for all students. We believe in empowering every single student who couldn’t dream of a good career in engineering and medical field earlier. ![]() PW strives to make the learning experience comprehensive and accessible for students of all sections of society. We successfully provide students with intensive courses by India's top faculties and personal mentors. Physics Wallah also caters to over 3.5 million registered students and over 78 lakh+ Youtube subscribers with 4.8 rating on its app. We also provide extensive NCERT solutions, sample papers, NEET, JEE Mains, BITSAT previous year papers, which makes us a one-stop solution for all resources. Physics Wallah is India's top online ed-tech platform that provides affordable and comprehensive learning experience to students of classes 6 to 12 and those preparing for JEE and NEET exams.
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