Fascinating chemistry. Page 3

Peristaltic or hose pumps are mainly designed for pumping clean, sterile or corrosive liquids, since they only come into contact with an elastic hose. In addition, they do not have rubber seals, so there is no contact

An integral part of any long hike is a fire. For quick ignition, tourists often use dry fuel. However, if a chemist tourist goes on a hike, then in his arsenal for ignition there is something more interesting - solid alcohol.

Recently I came across a set of silver cutlery that is about a hundred years old. During this time, the spoons and knives managed to darken and rust, and I decided to clean them of the deposits that had formed. In this article I will share a fairly effective method,

The familiar steel is an alloy of iron and carbon.Pure iron is malleable and soft, its scope of application is limited. A variety of rolled steel and steel products vary significantly in hardness and ductility with different heat treatments...

Starch is a fairly common source of energy in the human diet. It is found not only in potatoes, but also in many foods that we eat every day. Starch is one of the products of photosynthesis and is widely

Sometimes there is a need to protect a product from environmental influences. In other words, paint it, varnish it. But you don’t always have varnish or paint on hand that can dry in a short time.

Almost always, if any tool is left idle, it begins to rust. You just have to leave the pliers or wire cutters in an unheated room for one winter and in the spring you can see a layer of red rust on the surface. I'll show you the cheap one and

My first experiments were carried out in plastic cups due to their easy availability and low cost. But over time, the experiments became more complicated, and it became necessary to heat the solutions. Also, the cups, like any dishes, get dirty, wash them

The penultimate step on the path to obtaining a noble metal from radio components is the reduction of the latter from the corresponding chloride. Iron(II) sulfate is excellent for these purposes.Consider the equation for this reaction: HAuCl4 -

Good day, inquisitive chemists! Today we will conduct a simple but spectacular experiment. Its essence is that the hydrogen released during the reaction burns with a blue flame.

Alchemists who first produced hydrochloric acid in the 15th century called it “spiritus salis,” “spirit from salt.” At that time, this acid had magical properties: it corroded paper, dissolved metals, and poisoned people. These properties remained with her even after

An excellent life hack for radio amateurs and more. For those who had to solder oxidized copper wires. This cleaning method can also be very useful for motorists.

Today we’ll talk about bluing, oxidation or blackening of steel. This is a method of coating steel with a thin layer of iron oxides. It protects the metal from corrosion and also gives an attractive tint to the product.

Surprisingly, all the diversity of the living kingdom is due to the unique sequences of four nitrogenous bases. The nucleus of every cell of any living organism contains nucleic acid - DNA. In this helical molecule

If you have an air humidifier, steam mop, iron with steamer or similar equipment at home, then you know that for their operation you need clean, and best of all, distilled water, since tap water produces

In this simple way, you can make not only a round hole in hardened steel, but also a hole of any other shape without any extra effort. The chemical method will help you out and make the task easier. The method does not require expensive chemical reagents, everything

A flying balloon is perfect for any holiday event. Typically, commercial flying balloons are filled with a light, volatile gas such as helium. It is almost impossible to obtain such gas at home without special equipment. But helium doesn't

Aluminum is a very attractive metal for constructing your own homemade structures: it is lightweight, perfectly processed, drilled, sawed, does not rust, etc. But here’s the problem: welding two pieces of aluminum without a special argon

This is my favorite method for removing rust from heavily corroded metal products. The method is very simple and highly effective. With a little patience, you will get impressive results. Use this method only outdoors,

While fishing, hiking or outdoor recreation, it may happen that drinking water becomes unusable. Either it’s over or it’s spilled – it doesn’t matter. In general, you can get water from the nearest body of water, boil it, wait until it cools down and calmly

Good afternoon In this article we will look at the process of electrochemical deposition of copper on conductive surfaces, and also try to coat a walnut with a copper layer.

When cutting threads in duralumin or aluminum, a mishap may occur and your tap will break, leaving a piece of debris inside the hole. Drilling tool steel out of duralumin-aluminum is incredibly difficult and means that the entire hole will be broken.

Surely you have heard about growing crystals at home from various kinds of reagents: iron or copper sulfate, table salt, citric acid. The color of the crystal depends on the reagent. This time we will grow beautiful black ones

Experiments on extracting precious metals from circuit boards, microcircuits, transistors and other radio components are no longer new, and they are hotly discussed on the Internet. Many people discovered talented chemists in themselves in this way, and some make good money.