calgon converts the scale forming impurity like caso4 into
How does colloidal conditioning work? equation x and xi) and removed by filtration. Mono sodium di hydrogen phosphate NaH2PO4 (acidic) used for alkaline acidic water. For CY6251 CHEM 2 Question Bank/2marks 16marks with answers Click here The forward reaction is favored by increasing the concentration of CO3 2- .CaCO3 formed can be removed easily. Caustic embrittlement is the phenomenon in which the material of a boiler becomes brittle due to the accumulation of caustic substances. The original product consisted of powdered sodium hexametaphosphate (amorphous sodium polyphosphate), which in water would complex with ambient calcium ion and certain other cations, preventing formation of unwanted salts and interference by those cations with the actions of soap or other detergents. 10. 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This is called foaming and it is caused by high concentration of any solids in the boiler water. Hence calgon conditioning is better than phosphate conditioning. Search Terms, Anna University 2ndSEM IT CHEM 2 Lecture Notes, CY6251 Engineering Chemistry 2 Notes free download, Anna University IT CHEM 2 Notes Regulation 2013, CY6251 Notes, CHEM 2 Unit wise Lecture Notes IT 2ndSemester, CY6251 CHEM 2 Notes, Engineering Chemistry 2 Lecture Notes IT 2nd SEM Anna University, Anna University Regulation 2013 Information Technology (IT) CY6251 CHEM 2 Notes for all 5 units are provided below. Calgon converts the scale forming impurity like CaSO4 into soluble complex compound. A boiler is the collector of the boiler systems. Explanation: The quantity of calgon to be added to prevent scale and sludge formation is 0.5-5 ppm. In chemistry, a colloidal conditioning is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. It is used in small quantity. They are. This prevents damage to heating element, pipes & drums of washing machine. Calgon conditioning is not applicable for the prevention of ___________a) Iron oxide onlyb) Copper depositions onlyc) Sulphurdioxide onlyd) Iron oxide and copper depositionsAnswer: dClarification: Calgon conditioning is not applicable to the prevention of iron oxide and copper depositions. You can email the site owner to let them know you were blocked. that can be precipitated in water treatment. Carbonate conditioning is not done in high pressure boilers because it may lead to caustic embrittlement.a) Trueb) FalseAnswer: aClarification: Carbonate conditioning is not done in high pressure boilers because it may lead to caustic embrittlement. Calgon converts the scale forming impurity like CaSO 4 into ___________ a) Soluble complex compound b) Insoluble complex compound c) Soluble acids d) Insoluble acids View Answer 4 - Question The quantity of calgon to be added to prevent scale and sludge formation is ___________ a) 10-20 ppm b) 30-50 ppm c) 0.005-0.1 ppm d) 0.5-5 ppm View Answer The water which produces lather with soap. ii) Lowering of boiler safety: To supply steady heat overheating is required, which makes the boiler material weak &soft. 8. What kind of product is Calgon bath softener? Calgon converts the scale forming impurity likeCaSO4intosoluble complex compound which are harmlesstoboiler. The propulsion of water into . Engineering Chemistry Column Chromatography, Engineering Chemistry Combustion Calculation, Privacy Policy | Terms of Use | Contact Us | 2017 Copyright Amon.In | 0.10608577728271. to boiler water in order to prevent the scale formation. 92.243.17.49 If the precipitation takes place in the form of loose and slimy precipitate, it is called sludge. Water treatment describes industrial scale processes to make, a desired use. This website uses cookies to ensure you get the best experience on our website. Q: What is the substance, present in a larger quantity that tends to They accelerate the coagulation of fine particles. Advertisement Brainly User Answer: The colloidal substance convert scale forming substances like CaCO 3, CaSO4 into a sludge which can be removed by blow-down operation . Four good reasons to indulge in cryptocurrency! Q: Calgon converts the scale forming impurity like CaSO4 into Disadvantages of scale formation: Wastage of fuel: Rate of heat transfer is greatly reduced due to poor conductivity of scales Overheating is required for steady supply of heat hence fuel consumption increases. For CY6251 CHEM 2 Previous Year Question Papers Click here What is calgon conditioning How is it better than phosphate conditioning? Producing quality steam on demand depends on properly managed water treatment to control steam purity, deposits and corrosion. estimation of temporary & permanent hardness of water. It is also used as a coolant in power and chemical plants. Calgon prevents limescale build-up in washing machines all over the world to protect the heating element, pipes and drum of the machines. At room temperature, the impure compound in crystallisation is ____________, Electron cryomicroscopy is used mainly for _______________. Na2[Na4(PO3)6]. Soda removes the permanent hardness caused due to Ca. I have prepared as per our college autonomous syllabus, 0% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful. The colloidal conditioning agents are kerosene, agar-agar, gelatin, glue, etc. fields such as production of steel, rayon, paper, textiles, chemicals, and for air-conditioning, drinking. The chemicals added for this purpose are called Boiler compounds. 3 - Question Calgon converts the scale forming impurity like CaSO4 into ___________ Define hardness of water, Chemical Process Industries (CPI) Introduction, Water Treatment, Steam Power Plant, Chloro-Alkali Industry, Water Chemistry Industrial and Power Plant Water Treatment - in English, ENGINEERING CHEMISTRY DIPLOMA COURSE IN ENGINEERING FIRST AND SECOND SEMESTER DIRECTORATE OF TECHNICAL EDUCATION GOVERNMENT OF TAMILNADU A Publication under Government of Tamilnadu Distribution of Free Textbook Programme (NOT FOR SALE, GLOSSARY OF TERMS IN POWER PLANT ENGINEERING, Water Treatment Program Manual 6 Th Revision, Regenerating of consuming ion-exchange resin by graft polymerization for steam boiler wastewater treatment, OPTIMIZATION OF COOLING SYSTEM IN K.M.M.L, Water Treatment The role of water treatment in the effective operation of steam systems, Zaki Ahmad Principles of Corrosion Engineering and Corrosion Control Butterworth Heinemann (2006), A Full Detailed Report on the all the units at DANGOTE SUGAR RREFINERY, Research and Assessment of Anhydrous Calcium Chloride for Riken FI21 Interferometric Optical Gas detection Applications, Engineering Chemistry Notes For vtu students (Common to all Branches) (Effective from the academic year 2018-19) Subject Code: (18CHE12/22, Engineering Chemistry Notes For vtu students (Common to all Branches) (Effective from the academic year 2015-16) Subject Code: (15CHE12/22, Utilization of Ion-Exchange Technology for Boiler Feed Water Production-Design and Testing, Applied Water Science Drinking water contamination and treatment techniques, Power No. To learn more about cookies and how we use them, please view our privacy policy. The sum of temporary and permanent hardness is, The concentration of hardness as well as non-hardness constituting ions are, usually, expressed in terms. such an essential that without it one cannot survive. ), water is, rated to be of the greatest importance. When some chemical is mixed with water, _________ is formed. The scum or precipitate is due to the formation of insoluble soaps of calcium and magnesium ions with, Hardness of water can be classified into two types. In calgon Conditioning, the added calgon forms soluble complex compound with CaSo4, thereby it prevents the scale and sludge formation in water. The most important use of water as an engineering material is in the steam generation. Probably, its most important use as an engineering material is in the, .Water is also used a coolant in power and chemical plants. this soluble complex does not cause any problem in boilers. Engineering Chemistry MCQ's - Calgon Conditioning Calgon is added to boiler water to prevent - study4goal.com Explanation: Calgon converts the scale forming impurity like CaSO4 into soluble complex compound which are harmless to boiler. Vinegar is not used for this purpose. The hardness of, water is due to presence of calcium and magnesium salts. The significant role played by bitcoin for businesses! Water Treatment Technology - SlideShare CAUSTIC EMBRITTLEMENT Caustic embrittlement is a form of corrosion caused by a high concentration of sodium Hydroxide in the boiler feed water. Required fields are marked *. Water does not give lather with soap, but produces a white scum or precipitate with soap. Softening of water, Analytical Methods and Fuels, Engineering Chemistry Handbook of Water and Used Water Purification, LECTURE NOTES ON ENGINEERING CHEMISTRY I B. (adsbygoogle = window.adsbygoogle || []).push({}); Internal treatment involves adding chemicals directly to the water in the boilers for removing dangerous scale forming salts which were not completely removed by the external. This can be removed by boiling. In this process, calculated amount of lime and soda is added to the hard water. Composition Na2(Na4 (PO3)6). Calgon is sodium hexa meta phosphate with a. Colloidal conditioning The colloidal conditioning agents are kerosene, agar-agar, gelatin, glue, etc. Calgon prevents limescale build-up in washing machines all over the world to protect the heating element, pipes and drum of the machines. View Answer 2. The water which does not produce lather with soap. It ultimately receives all of the pre-boiler contaminants. Two major types of boiler water treatment are: External water treatment and internal water treatment. Explanation: The quantity ofcalgon tobe addedtopreventscaleand sludgeformationis 0.5-5 ppm. Explanation: Calgon converts the scale forming impurity like CaSO4 into soluble complex compound which are harmless to boiler. What is used for calgon conditioning? Performance & security by Cloudflare. 1. calcium and magnesium. By using our site, you agree to our collection of information through the use of cookies. Cloudflare Ray ID: 7d109ee2deca03c3 Calgon conditioning: Calgon = sodium hexa meta phosphate The process involves the addition of calgon to boiler water. It is formed by the reaction of sodium ortho-phosphate with calcium salts. and form insoluble precipitates of Ca or Mg salts of fatty acids. Scale forming salts like CaSO4 is converted into CaCO3, . Calgon conditioning: Calgon = sodium hexa meta phosphate The process involves the addition of calgon to boiler . Water: Introduction, Hardness: Causes, expression of hardness - units - types of hardness. To convert various hardness causing salt into CaCO, 2 x Equivalent wt. Due to lack of chain entanglement, dendrimers usually have low. What is defined as the concentration of dissolved solute in. On which of the following factors diffusion does not depend? Unit-4 Water Technology | PDF | Ion Exchange | Zeolite - Scribd On which of the following factors diffusion does not depend? It is used for high and low pressure boilers. c) Calgon conditioning: Calgon is the trade name of sodium hexa meta phosphate- Na2 [ Na4 (PO3)6]. PDF B.Tech 1st year By - University of Lucknow When water is boiled into steam its volume increases about 1,600 times, producing a force that is almost as explosive as gunpowder. What is used for calgon conditioning? Home Engineering Chemistry Objective Questions 250+ TOP MCQs on Calgon Conditioning and Answers. Calgon is a brand registered trademark of water softener, and bath and beauty products. 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