Chemical Process

We know that Sulfur Dioxide is poisonouos gasses but why this substance can found in food. Is this good to eat? Sulfur dioxide is one of sulfite, a preservative whose name might be more familiar, that is why this substance can be available inside the food usually preservative food. A small amount of sulfite can wreak health havoc of you're sensitive to it. If we have asthma, sulfite sensitivity or sulfite allergy, eating dried fruits might cause serious health problems, including breathing problems. Dried fruits are among the food highest in sulfites, with raisins and prunes containing between 500 to 2000 ppm, compare to wine that may contain sulfites only 20 to 350 ppm. As the regulation of US Food and Drug Administration mandates that foods containing more than 10 ppm of sulfites must list this information on the food label. Each countries have different standard of sulfite contain in food, Australian government limits sulfite in food to 3000 ppm, while British government...

Legislation about asbestos in each country already settle, and each country have their own regulation about using asbestos. To enforce of the compliance to the regulation, some country using many aid like OHS enforcement and safety officer. The Asbestos-related Claims (Management of Commonwealth Liabilities) Act 2005 provides for Comcare to assume and manage the common law asbestos-related conditions liabilities of the Australian Government and, with certain exceptions, its agencies and controlled companies. Type of enforcement to comply with this regulation through several ways such as follows. There are a range of enforcement actions that may be applied by Comcare when OHS legislative obligations are not met by duty holders. All employers, employees and other parties who have duties under the Occupational Health and Safety Act 1991 (OHS Act) are subject to the compliance, enforcement and penalty provisions of the OHS Act. The maximum penalty for criminal breaches of the OH...

The ability of atoms of an element to lone electrons is measured by the various ionization potentials characterizing that element. Conversly, the ability to gain electrons is measured by the electrons afinity or the electronegativity. It would follow, therefore, that ionic linkages resulting from electron transfer about occur most commonly between elements with comparatively low ionization potentials and elements with comparatively high electron affinities.

Electroplating is a process that convert a metal solution into the solid in other metal surface using direct electric current. The solution is made can conduct electric current, if the solution can't conduct electric current can add some acid or base solution that can conduct electric current. Metal solution will exist in positive ion form which transfer to the negative pole of the electrode because every charge molecule will go into the opposite of the electrode. For example in Chrome Plating Process , the chemical use chromic acid will can dissolve in water. To make this solution more conduct of electric current, into the solution add with sulfuric acid. The composition of chromium bath will vary depend on the goal of end product will formed. For Bright Plating use this formulation: The basic formulation of 100:1 chromic acid/sulphuric acid proportions: Chromic acid crystals = 33 oz. (936 grams)  Sulphuric acid fluid = .33 oz. (9.36 millilitre)  Distilled...

The use of estimated 2.27 million metric tons of pesticide applied worldwide - as well as the use of biological and other non-chemical controls - pests continue to destroy enormous amounts of valuable food and fiber. Since 1945 the overall use of synthetic pesticides in the United States has grown 33 fold although the amounts of particular herbicide, insecticides, and fungicides used have fluctuated with time, due in large part to changes in agricultural practices. In addition, the toxicity and biological effectiveness of these newer pesticides have in created at least 10-fold. Losses from pests have not, however, shown a concurrent decline. Since 1942, losses from weeds have decline slightly, due to improved weed control practices. Losses from plant pathogens have increase slightly. The share of crops lost to insects, however, has grown from 7% to 13% during the last 40 years despite the immense increase in the amount and toxicity of synthetic insecticides. This i...

A molecule is the smallest particle of a substance that exhibits the chemical properties of that substance. Molecules are groups of atoms held together by relatively strong forces called chemical bond. Each molecule of a given substance always contains the same number and kinds of atoms, and the number may range from one (Ne, for example) to many thousands (protein, for example). In a chemical reaction the chemical bonds are broken, and rearrangement of atoms takes place to form molecules of new compounds. The concept of molecule dates back to approximately 1800, when a great deal of effort was being directed toward the study of games and reactions of gases. The results of the experiments led Amadeo Avogadro to suggest that some gases consisted of groups of atoms or melecules. Molecules with the same number and kinds of atoms but different properties are called isomers. There are two general kinds; structural isomers and stereoisomers. Structural isomers are molecules that diff...

The striking similarities in solvent properties existent between ammonia and water suggest that certain substituted ammonias might also function as non-aqueous solvents for inorganic substances. On the basic of structural considerations alone, any such characteristics might be expected to be more pronounced with hydroxylamine hydrazine, and the lower acid amides than with the primary, secondary, and tertiary amines. Since hydroxylamine and hydrazine are strictly inorganic in nature, they should also be of more interest than the substituted ammonia containing organic radicals. Hydroxylamine, containing as it does both the amide and the hydroxyl radicals, should show solvent properties corresponding to those of both ammonia and water. Although data on the physical constants of these two compounds are incomplete, the values summarized. Early observation by Kohlschutter and Hofmann indicated rather striking resemblances between hydroxylamine and water in solvent character, salvation, amp...