Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
Free library / Directory / Factory technology at home - simple recipes

Liquid bronze. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

Comments on the article Comments on the article

liquid bronze, which does not give a green color on objects from the formation of verdigris, is obtained by neutralizing the acids contained in dammar resin.

To do this, proceed as follows: 250 g of finely ground dammar resin is dissolved with frequent shaking in 1000 parts of gasoline. Then add 250 g of a 10% aqueous solution of sodium hydroxide, shake for 10 minutes and leave to stand.

Two layers soon form: the upper one, containing a solution of resin in gasoline, the lower one, an aqueous solution of sodium salts with resin acids. The first of them is drained, mixed with a new portion of a 10% sodium hydroxide solution, shaken and allowed to settle. This resin-containing top layer is completely free of acids. To this solution, you can add 1/4 liter of golden bronze, without fear of the formation of verdigris.

Author: Korolev V.A.

We recommend interesting articles Section Factory technology at home - simple recipes:

Copal oil varnish

Shellac bleaching

Elastic sealing wax

See other articles Section Factory technology at home - simple recipes.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Supercomputer from store shelves 09.09.2003

Computer store shelves are lined with computers that are turned on, displaying moving screensavers, games, or movies on their monitors.

The American firm Gateway, which manufactures computers and has a network of stores throughout the country, thought: since the products still work to attract customers, can they be harnessed to some useful business?

By connecting about eight thousand state-of-the-art personal computers in its 270 stores via the Internet, the company received a supercomputer that performs 14 trillion operations per second.

Computing power is sold to everyone. So, one of the pharmaceutical companies calculates the shape of the molecule of new drugs in stores.

Other interesting news:

▪ Apple's eye-tracking 3D interface

▪ Transparent OLED display from Samsung

▪ Imagination Catapult RISC-V processors

▪ Atomic clocks will become even more accurate

▪ A new cell type in the human body

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Welding equipment. Article selection

▪ Article Less is more. Popular expression

▪ article Do fish sleep? Detailed answer

▪ article Supercharging for Moskvich. Personal transport

▪ article Infrared remote control system. Encyclopedia of radio electronics and electrical engineering

▪ article Moving match. Focus secret

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024