What is polymeric biguanide (PHMB)?
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POLYMERIC BIGUANIDE  TREATMENT\nOriginally developed as a pre surgery anti microbial scrub, PHMB was patented in 1977, and marketed for pools and spas under the trade name Baquacil. This technology has the distinction and the EPA approval as the only non halogen sanitizer available for pools and spas. Here's a page if you're looking here to find out how to convert back to chlorine or some other sanitizer.\nNow that the patent has expired, Bio Lab has also introduced a line of biguanide products under the name Soft Swim. A full system for complete halogen free water care, these products are a stand alone alternative to traditional sanitation methods. The Biguanide itself is combined with algaecides and hydrogen peroxide for periodic oxidation. The system tends to gum up filters, and of course a product is available to de-gum it. Biguanide are not recommended for spas or aerated pools. As long as you don't add any other chemicals but those recommended by the manufacturer, you'll do fine; but add a small amount of chlorine and your pool looks like orange sherbet! Biguanides are also incompatible with TSP, ozone, detergents, ionizers, and other common chemicals, but is not at odds with any water balancing chemicals you may add.\nBiguanides have been reported to be easier to use, with less chemical level testing, and less adding of chemicals. The water doesn't smell of chlorine of course, and the reduced surface tension gives it a smoother feel. It doesn't degrade with sunlight, temperature or changes in pH levels like chlorine. At recommended concentrations, biguanides won't irritate the skin or eyes and can't corrode pool equipment. \n \nhttp://www.poolcenter.com/biguan.htm\n------------------------------------------------------------
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In any reaction, white ppt formed implies that there is a compound formed in the solution  during the reaction which is white in colour and insoluble in water. So, it remains undissolved in water at the bottom like a white powder. This is called as white precipitate (ppt)
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H3PO3\n\nnot H3PO4, which is PhosphoRIC acid
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check this link-- http://www.orgsyn.org/orgsyn/prep.asp?prep=cv6p0468.\n\ninstead of Me use Ph
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Polymer is a generic term used to describe a very long molecule consisting of structural units and repeating units connected by covalent chemical bonds.  The key feature that distinguishes polymers from other molecules is the repetition of many identical, similar, or complementary molecular subunits in these chains. These subunits, the monomers, are small molecules of low to moderate molecular weight, and are linked to each other during a chemical reaction called polymerization.
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Lead (II) bicarbonate is Pb(HCO3)2.\nPb(CO3) is lead (II) carbonate.\n\nNote bicarbonate is a common name.  Hydrogen carbonate is a better name.  Note that if you said just lead bicarbonate there can be confusion.  It could be\n\nPb(II)(HCO3)2 or Pb(IV)(CO3)2 depending on how you interpret the "bi".
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Polybutylene terephthalate (PBT) is a plastic that is used as an insulator in the electrical and electronics industries. It is a thermoplastic crystalline polymer, and a type of polyester. PBT is resistant to solvents, shrinks very little during forming, is mechanically strong, heat-resistant up to 150°C (or 200°C with glass-fibre reinforcement) and can be treated with flame retardants to make it noncombustible.
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Podophyllotoxin solution
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Hydrocodone/Ibubrofen Medicines from Interpharm.  BEST TO ASK A PHARMACIST...
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glycogen, a polymer of glucose.
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http://images.google.ca/images?hl=en&q=polythene%20bags&ie=UTF-8&oe=UTF-8&sa=N&tab=wi\n\nThere are some picture examples at the link above.
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# Large molecules in biological systems namely proteins, nucleic acids, and polysaccharides.\nwww.whatislife.com/glossary.htm\n\n# large single chemical entities such as pieces of DNA or RNA.\nwww.biologylessons.sdsu.edu/classes/lab3/glossary.html\n\n# A macromolecule is a molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass.\nen.wikipedia.org/wiki/Macromolecule\n\nA macromolecule is a molecule with a large molecular mass, but generally the use of the term is restricted to polymers and molecules which structurally include polymers. [1]\n\nMany examples come from biology and in particular biochemistry. These include proteins, starches, lipids and nucleic acids (such as DNA), which are sometimes called "biomacromolecules" or biopolymers. Synthetic examples include plastics. The integral domains of crystals and metals, while composed of very large numbers of atoms joined by molecule-like bonds, are rarely referred to as "macromolecules."\n\nThe term macromolecule is also sometimes used to refer to aggregates of two or more macromolecules held together by intermolecular forces rather than by chemical "bonds". This usage is common in particular when the individual macromolecules involved aggregate or "assemble" spontaneously and rarely exist in isolation. Such an aggregate is more properly called a macromolecular complex. In such a context, individual macromolecules are often referred to as subunits (see e.g. protein subunit).\n\nSubstances that are composed of macromolecules often have unusual physical properties. The properties of liquid crystals and such elastomers as rubber are examples. Although too small to see, individual pieces of DNA in solution can be broken in two simply by suctioning the solution through an ordinary straw. This is not true of smaller molecules. The 1964 edition of Linus Pauling's College Chemistry asserted that DNA in nature is never longer than about 5000 base pairs. This is because biochemists were inadvertently and with perfect consistency breaking their samples into pieces. In fact, the DNA of chromosomes can be tens of millions of base pairs long.\n\nAnother common macromolecular property that does not characterize smaller molecules is the need for assistance in dissolving into solution. Many require salts or particular ions to dissolve in water. Proteins will denature if the solute concentration of their solution is too high or too low.
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"Phosphocreatine, also known as creatine phosphate or PCr, is a phosphorylated creatine molecule that is an important energy store in skeletal muscle. It is used to generate ATP from ADP, forming creatine for the 2 to 7 seconds following an intense effort. This reaction is reversible and it therefore acts as a spatial and temporal buffer of ATP concentration. Phosphocreatine plays a particularly important role in tissues that have high, fluctuating energy demands such as muscle and brain. Creatine phosphate is synthesized in the liver, and transported to the muscle cells for storage."
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It's a tie between Bababadalgharaghtakamminarronnkonnbronntonnerronntuonnthunntrovarrhounawnskawntoohoohoordenenthurnuk (that word actually appeared in the book Finnegan's Wake) and sodiummetadiaminoparadioxyarsenobenzoemethylenesulphoxylate, a compound in certain drugs.
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It can be easily produced in a high molecular weight form through ring-opening polymerization using a stannous octoate catalyst, but for laboratory demonstrations tin(II) chloride is often employed.\nand you meant polyLactic acid
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N-(4-hydroxyphenyl)acetamide\n\nC8H9NO2
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Phloxes.\n\nhttp://www.pnl.gov/pals/resource_cards/images/phlox-1.jpg