Why is leather a mixture, and not a pure substance? Why do we use tungsten, which is a metal having low resistivity to make the filament of a bulb, rather than using an alloy having high resistivity and high me
All that is needed to make basic steel is a combination of iron and carbon. However, over time it was found that adding different elements to this basic steel substance can increase its toughness or hardness. These added elements account for what is the major difference of most types of stee...
The crystalline substance found in most disposable diapers is sodium polyacrylate, a chemical absorbent used in the super absorbent layer. Sodium polyacrylate can absorb 200 to 300 times its weight in tap water, transforming it into a gooey gel to keep the diaper surface dry. While sodium polyacr...
In some cases, the BL systems can have not enough sensitivity to detect a toxic substance at its Maximum Permissible Concentration. but they result the quicker, or more convenient, bioassays. This is the case, for example of deltamethrin determination. The sensitivity of the BLB test was hig...
Before coring, porewater from each core site was collected using a perforated stainless-steel tubing inserted into the peat to the desired depth and extracted with an airtight syringe. No pore water was collected in the dry palsa or above the water table in the bog. Porewater was used to ...
Refilling plastic bottles is often believed to be bad because of a substance known as “antimony,” a metal used during plastic manufacturing that may be carcinogenic. The concern is that this antimony will begin to leak into your water when reusing plastic bottles over time. Fortunately, this ...
344 BIS IS 11636-1986 1986-01-01 English Method for determination of strength of indigo in substance 345 BIS IS 12014: PART 3-1986 1986-01-01 English Methods for Determination of Organic Preservatives in Foodstuffs - Part 3 : Sorbic Acid and Its Salts ...
A guide to the different types of silicone sealants available, where these types of silicone sealant can be used, and the colours they are available in. Read more Ideas and Advice A Complete Guide to PPE & Regulations In this guide we will be explaining the different types of personal protec...
Because the composition and construction of a tantalum-MnO2 capacitor is similar to that of a firecracker (a finely divided metal in intimate mixture with a substance that releases oxygen when heated) these capacitors are well-known for failing in pyrotechnic fashion, characterized by explosions and...
Catalyst or catalyst said, is a chemical substance, itself can reduce the energy needed to chemical reaction, and make chemical reaction occurrence or acceleration response, but she does not change, the reaction happened or acceleration response speed effect called c...