Perkhloretilen for dry-cleaning Czekh 2903230000
Perchlorethylene is the most effective solvent for dry cleaners
One of the most famous and highly effective chlorine-based solvents is perchlorethylene. Due to its incombustibility, this substance is popular in domestic dry cleaners. The price for perchlorethylene is justified by the fact that the solvent has excellent cleaning ability, effectively decomposes types of dirt that are difficult to remove on clothes.
Perchlorethylene: chemical properties
Perchlorethylene - it is a colorless liquid with a very strong and pungent odor. It is absolutely transparent, without any impurities and foreign particles. Perchlorethylene is able to dissolve almost all types of organic substances that can be found on clothes - it easily copes with wax, oils, fats.
The high density of the substance explains its improved cleaning effect. Small particles of liquid provide enhanced and deeper mechanical effect on the tissue, thereby removing stains from its surface. Moreover, perchlorethylene does not destroy the structure of the fabric, does not damage its finish and does not wash out the color - after dry cleaning, things always look like new.
Due to its high level of volatility, the substance is well rinsed out and eroded from the fabric. After using it, no unpleasant odor remains on the clothes. This tool is suitable for any car p> providing regenerating processes for catalysts;
processing wood and other types of materials of natural origin;
degreasing metal parts at instrument-making and machine-building enterprises;
processing of printed photopolymer boards using technical methods;
making needles for disposable syringes;
for the production of dyes.
One of the most popular uses of perchlorethylene is dry cleaning. Cleaning heavily soiled clothes in washing machines requires special preparation. The fact, that during the wash process, dirt combines with the solvent and prevents it from passing through the internal filtration system. Therefore, in this case, it is necessary to use perchlorethylene for dry cleaning only in devices with two-stage distillation, but without a filter. Only they provide automatic control over the saturation of the solvent with oils, fats and carry out additional cleaning when its level is exceeded.
Cleaning with perchlorethylene in washing machines without the presence of a stabilizer in its composition is fraught with decomposition of the substance under the influence of high humidity and temperature. As a result of this reaction, the integrity of fabrics can be damaged, and corrosion appears on the metal parts of the machine.
The use of perchlorethylene has a number of advantages - it does not attack textiles as aggressively as methylene chloride, and does not deplete the ozone layer as trichloroethane does. It is also used as an intermediate in the synthesis of fluorinated hydrocarbons and for the production of drugs for worms for animals.
The main suppliers of perchlorethylene
Over the past 3 years the average demand of the domestic market for perchlorethylene is from 4500 to 5000 tons per year. A large share of the need for this chemical is covered by foreign enterprises - Dow Chemical from Germany, SPOLCHEMIE from the Czech Republic and SOLVAY from France.
Domestic chemical enterprises do not create this substance from sludge. therefore, perchlorethylene can be bought in Ukraine and Russia only from foreign companies. The largest supplier of perchlorethylene is considered to be the Dow Chemical manufacturer, slightly more than 1% of the market is occupied by the products of the German company Richard Geiss and the Japanese ASAXI GLASS.
Only in the last few years, the European manufacturer has been forced out of the Russian market by Chinese companies, among them:
Dakang Fine Chemical Industrial Corporation from Alashan province. This company has been producing and exporting perchlorethylene for many years.
Honghe Fine Chemical Corporation from Sichuan province. It was founded on the basis of a plant that was previously engaged in the production of chlorine-based products, and this is the essence of its specialization. In addition to perchlorethylene, the company also manufactures chloroform, methylene chloride, fluorine-based freons.
Juhua Chemical Corporation from Ningbo. The main types of products manufactured at the enterprise are PVC resin, trichlorethylene and vinylidene chloride.
The unsatisfactory quality of chlorine-containing products from China does not always lead to irregular supplies of perchlorethylene to our country.
Perchlorethylene: producers from European countries
Several top production facilities are also concentrated in Europe, among them:
SPOLCHEMIE - this chemical plant was founded in the Czech Republic back in the 19th century, and he started producing perchlorethylene in the 70s of the last century. The plant produces small quantities of high quality perchlorethylene, which meets all safety standards. For the enterprise, the production of this substance is not the main activity.
SOLVAY - this French company has been producing perchlorethylene since the 30s of the XX century. Its solvent has all the necessary characteristics and has been presented in our country since 2007. Due to its balanced composition and high quality, this perchlorethylene is considered one of the most popular in Russia.
DOW - its innovative development of a solvent for dry cleaning has become the best product in the opinion of 50% of European consumers. DOW provides customers with the quality of chlorinated solvents that which are safe for human health.
The production of this chemical in India is developing no less intensively, especially since it is much better in quality than similar products from China. If you are interested in perchlorethylene, the purchase of which directly depends on the manufacturer - then the European product costs from 1.3 to 4 dollars per 1 kg, the Chinese one is much less. The most expensive option is supplied to the domestic market from Germany, but its cost is fully consistent with the quality.
Stabilization of perchlorethylene
One of the most important performance indicators of perchlorethylene is its pH level - pH. Exceptionally fresh, unstitched goods contain sufficient amount of stabilizer.
Therefore, the stabilization of perchlorethylene is an important technological operation that allows the solvent to be evenly distributed throughout the volume of the substance. Before buying perchlorethylene at retail, remember that exceeding the required concentration of the stabilizer leads to alkalization of PCE, and then to its gradual decomposition and the appearance of an unpleasant rotting smell.
To stabilize perchlorethylene, it is necessary to use a special equipment. which allows you to thoroughly mix the substance at the right speed and at a certain temperature. As a result of this manipulation, an optimally stabilized perchlorethylene with a pH of 7.5 - 8.5 is formed.
Perchlorethylene: toxicity characteristics
Perchlorethylene is a chemical with a potential risk of carcinogenic effects in humans. Even a short-term effect on the body provokes severe headache, drowsiness, dizziness, irritation of the mucous membrane of the throat, eyes and nose. The toxicity level of perchlorethylene can cause serious damage and depression of the nervous system and brain cells, as well as kidneys and liver.
Among a number of other chloroethene derivatives, this substance has the lowest level of toxicity. Acute perchlorethylene poisoning provokes:
heart rhythm failure;
nausea and vomiting;
disruption of the nervous system;
long-term mental disorder with accompanying impairment of memory and ability to concentrate.
Perchlorethylene, whose properties are almost 3 times higher than the irritating and hypnotic effect of carbon tetrachloride, is also hepatotoxic. Its action is manifested in the form of cirrhosis and hepatitis. If it comes into contact with the skin, this substance causes dermatosis, irritation of the mucous membranes, erythema and necrosis.
For individual protection of the body from the effects of perchlorethylene, it is recommended to use brand A gas masks. The skin should be protected with overalls and gloves, and the eyes mask. Remember that this chemical has the ability to enter the body through the mouth - swallowing it leads to aspiration and chemical inflammation of the lung tissue. Breathing in air which contains a dangerous concentration of perchlorethylene, provokes loss of coordination of movements, hyperhidrosis, weakness, migraine, nausea.
Before buying perchlorethylene, remember that in the workshops that use it, you must install an effective ventilation system with control over the content of harmful substances in the air. Additionally, it is worth using disinfecting filtration, which ensures that the maximum permissible rate of hazardous waste is released into the atmosphere.
First aid for perchlorethylene poisoning
If a person has inhaled the vapor of this chemical, it must be urgently taken to fresh air, provided peace, warmth and plenty of fluids to drink. Clothes that have gotten perchlorethylene particles it is worth rinsing thoroughly with soap under running water.
Remember that first aid has the proper effect only at the early stage of intoxication, so we recommend that you contact a doctor as soon as possible for further hospitalization. This substance is excreted from the body for an extremely long time - it is determined in the blood even 2 weeks after inhalation.
Storage and transportation
Perchlorethylene for dry cleaning at retail it is not recommended to pack in glass containers - only made of metal or plastic is acceptable. For industrial storage of perchlorethylene, cans or drums can be used. Their transportation is allowed by any type of vehicle, the main thing is that the area for loading the goods is hermetically closed.
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