Assertion (A)Glyptal is a copolymer. Reason(R ) It has two monomeric units, ethylene glycol and phthalic acid. View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths ...
Melamine-formaldehyde-resins (MFR) are plastics made of melamine and formaldehyde. The material isshatterproofand usually has a smooth surface. Because of these properties, it is also used for the production of tableware and kitchen utensils. ... The plastic is eroded and degrades. Why can't ...
Methods for preparing the multi-arm PEG polyol multi-arm poly (ethylene glycol) (PEG) amines have been disclosed. The method, a two-step process of reacting with thionyl chloride in the first multi-arm PEG polyol, to produce a multi-arm PEG chloride is reacted with anhydrous ammonia or ...
Mono Ethylene Glycol manufacturersuse Ethylene Oxide with water within neutral or acid-based environments to create Mono Ethylene Glycol with a grade of much more than 90%. As MEG is usually a poisonous compound, has to be transported and made use of with care and employing professional safety ...
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polyester fiber, but the remaining four products within the COOLMAX line have a decidedly negative impact on the environment. The production of COOLMAX fibers involves formaldehyde, which is a potent neurotoxin. Additionally, all types of polyester are unsustainable since they are made using fossil ...
Most types of plant-based polyester are also made from ethylene glycol reacted with dimethyl terephthalate. While the source of the ethylene used in PET and PCDT polyester is petroleum, however, producers of plant-based polyester use ethylene sources like cane sugar instead. ...
aEnter a message to introduce yourself.Hello how\'s your day, The world is wonderfully made,it\'s nice to know about your weather condition over thereand also I would love to be your friends and also love to know more about you... 进入消息自我介绍。你好怎么\ ‘s您的天,世界美妙地被...
Battery management system (BMS) is technology dedicated to the oversight of a battery pack, which is an assembly of battery cells, electrically organized in a row x column matrix configuration to enable delivery of targeted range of voltage and current for a duration of time against expected load...
good antifreeze,but when the air is running it becomes hot and the alcohol boils away,so it must be changed very often.Most people use antifreeze that does not boil away when the engine is running.There are several chemicals that do this.One of the most popular is called ethylene glycol....