why lyophobic sols are easily coagulated?
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Lyophobic sols are less stable since their stability is due to charge only. On the other hand, lyophilic sols are more stable since their stability is due to both charge as well as solvation of the particles. Thus, lyophobic sols are easily coagulated.
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No! Tetrachloromethane being non-polar in nature doesn't dissolve in water. Hence, when mixed they form two separate layers. Hence it doesn't give a Homogeneous Solution.
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Pulmonary surfactant would make a strong detergent because it strongly decreases surface tension! ... Thus, the presence of surfactant prevents the alveoli from collapsing under the normal surface tension exerted by the aqueous fluid lining the alveolar surfaces.
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The claim that quicksand doesn't kill is nonsense - It is rare for someone to literally drown in quicksand, in the way seen in movies, but quicksand will tend to hold a victim hard and fast - which is a problem somewhere like Morecambe because quicksand is most active on coastal estuaries where rivers flow into the sea ...
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Gold number is the minimum amount of protective/lyophilic colloid in milligrams which prevents the flocculation of 10ml gold sol by the addition of 1 ml of 10%NaCl solution. Reciprocal of gold number indicates the protective power of a colloid.
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Alcohols. Hydroxyl groups (-OH), found in alcohols, are polar and therefore hydrophilic (water liking) but their carbon chain portion is non-polar which make them hydrophobic. The molecule increasingly becomes overall more nonpolar and therefore less soluble in the polar water as the carbon chain becomes longer.
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SDS in the buffer helps keep the proteins linear. Glycine is an amino acid whose charge state plays a big role in the stacking gel. More on that in a bit.
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The stability of lyophilic sols is a result of two factors, the presence of a charge and the solvation of colloidal particles. On the other hand, the stability of lyophobic sols is only because of the presence of a charge. Thus, the lyophilic sol is more stable than lyophobic sol due to the extensive solvation.
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Hold Agents PVP (poly N-vinyl-2-pyrrolidone) is an excellent film-former that is substantive to hair, forms clear films, and is completely water soluble. However, it absorbs water readily, which in humid weather makes it sticky or tacky to the touch, can cause frizz, and give a dull appearance to the hair.
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When NaCl is added to the phenol-water system, the solution immediately shows turbidity. Organic compounds are readily soluble in phenol.
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FeCl3 or ferric chloride is used for stop bleeding because,it is a strong coagulant substance which accelerates the blood clotting process in the site of external injury.
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Sodium polyacrylate can absorb about 300-800 times its weight. This is the most difference between SOCO Polymer and other traditional absorption materials. High absorbent rate. It only takes several seconds to absorb all the water.
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Addition of even small quantities of electrolytes can cause particles to precipitate. Unlike Lyophilic colloids, the precipitations of lyophobic colloids do not regain their original state as coagulated mass cannot be dispersed into colloidal form. This shows that lyophobic sols are also irreversible in nature.
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Ionic compounds dissolve faster in water than covalent compounds | Solutions | Chemistry.
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Soft, strong and fragrance-free, they're made from 98% water and suitable for even the most delicate skin. They are a little expensive compared to non-biodegradable wipes but compared to other eco-friendly options, they are very reasonable. The fact they degrade in just 15 days in landfill is a major bonus too.
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The hydrohalic acids (HF, HCl, HBr, and HI) are the simplest of acids and are extremely soluble in water.
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Coagulants are used to increase the size of aquatic substances, making them large enough to settle or to be removed by sand, dual layer filtration, or the membrane.