My Courses

  • Alkyd Amine Stoving Clear

    Alkyd Amine Stoving Clear

    A typical stoving enamel clear coat formulation based on alkyd resin and butylated melamine formaldehyde (MF) resin includes the following components: 1. Resin System (Binder) 2. Solvent System 3. Additives…

  • Guru Dakshina

    Guru Dakshina

    by Dr E. Ramanathan PhD My Dear Parents, Students and Clients, The True Meaning of Guru Dakshina – A Message for Students, Parents, and Clients One of the most profound…

  • Comparison of Chelating agents

    Comparison of Chelating agents

    HEDP is highly acidic. Can we use in alkaline degreasing chemicals? Yes, HEDP (1-Hydroxyethylidene-1,1-diphosphonic acid) can be used in alkaline degreasing formulations, despite being highly acidic in its pure form,…

  • Tamilnadu State Board

    Question Bank Released by TN State Board https://tnschools.gov.in/question-bank

  • CBSE Board

    CBSE Board Notifications

  • ICSE Syllabus

    ICSE Syllabus

    Syllabus

  • World Book and Copyright Day

    World Book and Copyright Day

    by Dr E. Ramanathan 🎙️ உலக புத்தக தினம் மற்றும் காப்புரிமை தினம் புத்தம் புதிய புத்தகமே உன்னை புரட்டிப் பார்க்க ஆசைதான் , கையிலெடுத்தாலோ நீயொரு அற்புதக் குழந்தைதான்!பலர் உன்னை வாசம் முகர்ந்து வைத்திடுவர்.சிலர் உன்னை பக்கம் வைத்து படுத்திடுவர்.வெகு…

  • Alkaline Liquid Degreaser Formulation to result better shining and cleaning

    Alkaline Liquid Degreaser Formulation to result better shining and cleaning

    Dr E. Ramanathan 🔍 General Observations on General Formula: Issue Cause Fix Suspended dirty particles Incomplete emulsification or particle redeposition Add dispersants or hydrotropes, reduce solids Lack of shine High…

  • H-P Ratio in Zinc Phosphating

    H-P Ratio in Zinc Phosphating

    Dr E. Ramanathan PhD The two main types of zinc phosphate crystals formed during zinc phosphating on iron components are: 1. Hopeite (Zn₃(PO₄)₂·4H₂O) 2. Phosphophyllite (Zn₂Fe(PO₄)₂·4H₂O) Balanced formation of both…

  • Surface Activation prior to Phosphating

    Surface Activation prior to Phosphating

    Potassium titanium fluoride (K₂TiF₆) in place of titanium fluoride (TiF₄ or related forms like H₂TiF₆) in a surface activation or conditioning solution prior to zinc phosphating. In fact, potassium titanium…

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