Rosin is a very interesting substance

Date:

2019-04-17 08:20:22

Views:

541

Rating:

1Like 0Dislike

Share:

Table of contents:

Resin – it is amorphous, brittle substance, having a vitreous structure and color from light yellow to dark red. It is obtained after distilling off volatile component from the resin of coniferous trees. Chemical properties of rosin (90% resin acids, including the main – abietina) make it insoluble in water, but soluble in ether, alcohol, chloroform and benzene. When heated to 50-120 s (for different varieties) rosin sticks soft.rosin is a

Where did the word "resin"? This is most probably the distorted name of the ancient Greek city of Colophon, around which grew the trees that provide the substance. In ancient times (more than three thousand years ago), resin turpentine was obtained by heating, and the dry residue is precisely the primitive rosin substance.

Resin – it is an accessory, without which it is impossible to play such as violin, viola, contrabass, cello. By rubbing the bow with a piece of this substance, the formation of free molecules, which give a certain grip with the string, thereby extracting the sound. This resin often produce non-industrial way of resins collected exclusively in the fall with the addition of “secret” ingredients that your each company (can be added to the metal, silver and even gold dust, etc.). In addition, the rosin before rubbed the soles in front of sports, for example, wrestlers as well as saddle jockeys before the race.
production of rosin

Resin – this substance, which is widely used in the industry. In former times it was popular in soap making, manufacture of plasters, wax. Today, formulations with rosin is used for mounting the glass components of the lamps to the bases, for the production of lacquers, in printing, soldering industries, as well as in the paper industry. And there is its main feature-the ability to create sticky compound when heated.

Recommended

Staff evaluation: system and methods

Staff evaluation: system and methods

Personnel Assessment allows you to identify how competent the employees involved in the enterprise, and it is the performance of their work – the most significant factor affecting the efficiency of the company. To clarify the impact of performa...

How to start your own business: important aspects.

How to start your own business: important aspects.

Many people, tired of working for someone else, are increasingly thinking about how to start your own business. Someone wants to open a salon, someone store, and someone enough and vegetable stalls. Before you throw in the pool with his head, it is i...

business activities. its essence and basic functions

Business activities. its essence and basic functions

The Entrepreneurial activity of the citizen – is undertaken at your own risk and independent activity, which aims to systematically profit through the sale of works, goods, services, use of the property. The citizen engaged in such activities, ...

Production of rosin in General has not changed over the millennia. Source material (tarred stumps, collected the resin - resin) placed in Cuba, where he is treated with steam or heated on the fire. Of quintals of resin get about 12 kg of turpentine (is distilled) and 70 kg of rosin, which uvarivaetsja to remove the liquid and placed in containers. If the substance is extracted from stumps, they are pre-crushed, and then a mixture of woodchips and water is subjected to the extraction process. From one cubic meter of tarred wood you can get about forty pounds of rosin.rosin GOST

What are the basic regulations are used by companies that produce resin? GOST № 19113 – 84, in particular, contains basic requirements for products and a number of production parameters. From it we can learn what should be the appearance of rosin, what is the allowable density, water content, softening point, acid number, etc. the document also identifies the security requirements of the production process (rosin – it is moderately hazardous substance, because its aerosol may cause irritation), acceptance rules, methods of analysis of the finished product, the retention rules and guarantees.


Article in other languages:

AR: https://tostpost.com/ar/business/16516-rosin-is-a-very-interesting-substance.html

BE: https://tostpost.com/be/b-znes/32025-kan-fol---geta-vel-m-c-kavae-rechyva.html

DE: https://tostpost.com/de/business/31703-kolophonium-ist-eine-sehr-interessante-substanz.html

ES: https://tostpost.com/es/centro-de/31565-unta-de-colofonia-es-muy-interesante-la-sustancia.html

HI: https://tostpost.com/hi/business/18153-rosin-is-a-very-interesting-substance.html

JA: https://tostpost.com/ja/business/16210-rosin-is-a-very-interesting-substance.html

KK: https://tostpost.com/kk/biznes/32357-kanifol---b-l-te-yzy-ty-zat.html

PL: https://tostpost.com/pl/biznes/33410-kalafonia---jest-to-bardzo-ciekawa-substancja.html

PT: https://tostpost.com/pt/neg-cios/33157-resina---muito-interessante-mat-ria.html

TR: https://tostpost.com/tr/business/28768-re-ine---bu-ok-ilgin-bir-madde.html

UK: https://tostpost.com/uk/b-znes/32566-kan-fol---ce-duzhe-c-kave-rechovina.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Pure monopoly is a necessary segment of the modern market

Pure monopoly is a necessary segment of the modern market

Pure monopoly – it's about creating the market conditions to ensure that only one company can produce and sell your product, having no analogues. While there may be a restriction of access to the market and to exercise full ...

What is brokerage

What is brokerage

As you know all activities on the securities market, carried out professionally, involves several activities. These include broker / dealer activities; activities involving securities management; clearing; Depository activities; m...

Destroyer type

Destroyer type "Leader": feature

the Construction and maintenance of the Navy – is expensive. Apparently, therefore, the Russian Navy has long funded insufficient. For the past two decades, new ships were almost down to the water, and Soviet “legacy&r...

Clothing store business plan. How to open a clothing store?

Clothing store business plan. How to open a clothing store?

Many new entrepreneurs when choosing the scope of its activities focus above all on trade. Opening a small clothing store will not require an impressive investment. Moreover, this business will pay off much faster than, for exampl...

Services of the transport company

Services of the transport company "Business lines". Cheboksary invite to your branch

Services for the carriage of goods enjoy wide popularity among a variety of firms and companies, and among ordinary citizens. The speed of solving problems became the basis of modern life. With the help of Internet you can buy the...

Improving the system of personnel management

Improving the system of personnel management

the Transition to market economy resulted in changes in the conduct of personnel policy. Today, managers of successful companies know how organized the work of their employees depends on the profitability of their business. For th...