Here we will explain about the use of Chlorine in paper making. What is Chlorine? Chlorine is a naturally-occurring chemical element that has the symbol Cl and the atomic number 17. Chlorine naturally occurs mainly as NaCl, carnallite [KMgCl2.6(H20)], and sylvite (KCL). It is an essential nutrient for various plants and animals. Chlorine is categorized […]
Author: Riki
Do you know that there are so many branches of chemistry? Do you know that there is a study in chemistry which focused on chemicals effects toward living thing? What is the study of harmful effects of chemicals on humans and other organisms called? yep, it is called Toxicology. What is Toxicology? Toxicology is a […]
What is chemical waste? Chemical waste is a waste that is made from chemicals, which are produced mostly by large factories. Those chemicals are potentially hazardous and it is usually a byproduct of a large scale factories and laboratories. There are some chemical wastes that are non-hazardous, there are some chemical wastes that are hazardous, […]
What are chemicals? Chemicals are any substances (pure or mixture) consisting of matter. It includes liquid, solid, and gases. Chemicals may occur naturally or can be made artificially. Naturally-occurring chemicals Naturally-occurring chemicals are chemicals that we can found naturally in the environment without any changes of chemical composition in the extraction process. There are many […]
What is food additive? Food additive is a substance that is added to a food (usually used to enhance its quality or preserve it). According to World Health Organization (WHO), food additives are substances that are added to a food to maintain the safety, freshness, taste, texture, or appearance of the food. Example of food […]
What are pesticides? Pesticides are substances that are meant to control pests, which also include weed. According to World Health Organization (WHO), Pesticides are chemical compounds that are used to kill pest, including insects, rodents, fungi, and other unwanted plants (such as weed). Although the major advantages of pesticides are used by farmers to protect […]
What is Biology? Biology is a discipline of science that was first introduced in the 18th century. The word “Biology” is derived from two Greek words, they are “bios” which means life and “logos” which means science or knowledge. From that derivation we can say that Biology is a discipline of science that studies about […]
What is Citric Acid? Citric acid is an organic acid that has the chemical formula C6H8O7.It can be found abundantly in fruits (especially in citrus fruits) like oranges, lemons, limes, and pineapples. Citric acid was first isolated from a lemon using Aspergillus niger by Carl Wilhelm Scheele in 1784. Since then, it has been considered […]
What is acetone? Acetone is an organic compound that has the chemical formula (CH3)2CO. Acetone was first discovered by Chaim Weizmann who was a British citizen. Weizmann made acetone using Clostridium Acetobutylicum because he needed something to help him in creating a method of bacterial fermentation. Acetone is also produced by human body in a […]
What is Butane? Butane is an organic compound that is either of two saturated hydrocarbons or alkanes. It has the chemical formula C4H10 which means that Butane’s molecule consists of four Carbon atoms surrounded by ten Hydrogen atoms. Butane occurs in natural gas, petroleum, and refinery gas. It is found in gas form at room […]