Hives are red and sometimes itchy bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions cause your body to release chemicals that can make your skin swell up in hives. People who have other allergies are more likely to get hives than other people. Other causes include infections and stress.
hydroxyl amine. It is freely soluble in water. Chemically it is a reducing agent and hence it oxidizes. It reduces ferric ion and converts into ferrous ion. Thermally in presence of water, it decomposes . The details of the above chemical properties with reference to high temperature systems are discussed here.
HYDROXYPROPYL METHYLCELLULOSE HPMC VS MC. Hydroxypropyl Methylcellulose is non-ionic cellulose mixed ether made from refined cotton by alkaline treatment and then by a series of reactions with propylene epoxide and methyl chloride as etherifying agents. The degree of substitution is generally 1.2-2.0.. Hydroxypropyl Methylcellulose is easily soluble in cold water but difficult to be soluble in hot water. However, its gelling temperature in hot water is significantly higher than that of Methyl Cellulose (MC). And compared with MC, the dissolution in cold water has also been greatly improved. 2.