Izocianát

You can find isocyanates in a number of construction products including polyurethane paints, coatings, foams, glues and flooring. Certain tasks, such as spraying, can produce very high exposure to isocyanates. This page tells you how to control these risks and why. Organic compounds that contain an isocyanate group are referred to as isocyanates.

Isocyanate is the functional group with the formula R−N=C=O. An organic compound with two isocyanate groups is known as a diisocyanate. Diisocyanates are manufactured for the production of polyurethanes, a class of polymers. Az izocianát csoportot tartalmazó szerves vegyületeket röviden izocianátoknak is nevezik.

Az izocianátokban több izocianát csoport is előfordulhat, a két izocianát csoportot tartalmazó vegyületek neve diizocianát. A diizocianátokat a többértékű alkoholokkal együtt a poliuretánok előállításához használják fel. Spraying can produce very high exposure to isocyanates.

You also need to be aware of the general information on isocyanates. Follow the Assess, Control and Review model. As respiratory sensitisers, exposures to isocyanates should be kept as low as reasonably practicable and this often requires the use of respiratory protective equipment (RPE).

Biological monitoring is a simple and cost-effective way of checking that control measures are. They are widely used in the manufacture of flexible and rigid foams, fibers, coatings such as paints and varnishes, and elastomers, and are increasingly used in the automobile industry, autobody repair, and building insulation materials. They react with compounds containing alcohol (hydroxyl) groups to produce polyurethane polymers, which are components of polyurethane foams, thermoplastic elastomers, spandex fibers, and polyurethane paints. A metil- izocianát rendkívül mérgező belélegezve, az emésztőrendszerbe vagy bőrre jutva, még egészen kis, akár ppm mennyiségben is. Methyl isocyanate (MIC) is an organic compound with the molecular formula CH NCO.

Synonyms are isocyanatomethane, methyl carbylamine and MIC. They are potent respiratory and skin sensitisers and a common cause of asthma and allergic contact dermatitis, see Occupational allergens article. A range of other adverse health effects are also associated with isocyanate exposure including cancer. In poison: Organic compounds.

Because both anhydrides and isocyanates are highly reactive, they are extremely irritating to the upper respiratory tract (Table 2). If the airborne concentration is sufficiently high, the upper respiratory tract cannot remove all of the isocyanate or anhydride molecules, and pulmonary injury (mainly edema). You may come in contact with them when mixing hardener, spraying hardener, and cleaning equipment after sprayi.

ARAB NEWS Sadara Chemical Company (Sadara), a joint venture between Saudi Aramco and the Dow Chemical Company, recently celebrated the commissioning of the last of its plants - an isocyanates section currently producing crude quantities of toluene di isocyanate (TDI) and other specialty chemicals. Sigma-Aldrich offers an extensive selection of isocyanate derivatives such as aromatic isocyanates (e.g., derivatives of phenyl isocyanate), aliphatic isocyanates , and diisocyanates. Alternatively, the curing agent can be deactivated by complexing.

Search for isocyanate at Sigma-Aldrich. Szinonimái: izo-ciano-metán, metil-karbil-amin és MIC. Erősen mérgező és irritáló hatású, színtelen, szúrós szagú folyadék.

A BorsodChem története hét évtizeddel ezelőtt kezdődött Kazincbarcikán. Társaságunk mára Európa 3. MDI gyártójaként a kontinens egyik vezető műanyag alapanyag gyártója.