Erosyl
6,000,000 تومان
Erosyl has very strong viscose properties. The size of the primary particles is 5–50 nm. These particles are non-porous and have an area of 50 to 600 square meters per gram. The density is 160–190 kg/m3.
Superior quality
Guaranteed quality of products
Variety of products
Variety and product updates
Fast support
Call during office hours
Research and development
The latest in the world
Description
Erosyl or fumed silica CAS number 112945-52-5, also known as pyrogenic silica, because it is produced in flame، It consists of microscopic droplets of amorphous silica, composed of three-branched, chain-shaped, three-dimensional secondary particles that accumulate in tertiary particles.
In the production of pyrogenic silica nanoparticles, they are formed from the reaction of a silicon compound, generally silicon tetrachloride (SiCl4), in the flame of hydrogen and oxygen gas, and at a temperature of about °C1723 according to the following reaction:
SiCl4 + 2H2 + O2 → SiO2 + 4HCl
In pyrogenic silica, the primary particles usually join and form aggregates in the form of open chains, hence its powder is very porous and from a very low bulk density (g/)/l 20-50) has [1].
The resulting powder has a very low mass density and a large surface area. Its three-dimensional structure leads to increased viscosity, tizxropic behavior when used as a thickener or reinforcement reinforcement.
Additional information
| Weight | 10 kg |
|---|
Reviews (0)
Related products
Amino Polyester Resin
Saturated polyester resin is a polymer that does not have any double or triple bonds in its main carbon chain. Therefore, there is no unsaturated factor in this polymer. On the other hand, unsaturated polyester resin is the most common type of resin and has double bonds in its original structure. This is the key difference between these two resins.
Cobalt naphthenate
Cobalt is a ferromagnetic metal with a specific gravity of 8.9. It has a Curie temperature of 1115 degrees Celsius and a magnetic moment of a magnet of 1.6–1.7 boron magneton per atom. The relative permeability of cobalt is two thirds of iron. Cobalt metal occurs as two crystallographic structures: hcp and fcc. The ideal transition temperature between hcp and fcc structures is 450 degrees Celsius, but in practice the energy difference between them is so small that the random average growth of the two is common.
Cobalt is a weak reducing metal and is protected from oxidation by a passive layer. This element is attacked by halogens and sulfur. Heating it in oxygen produces Co3O4, which loses oxygen at 900 degrees Celsius to cobalt(II) oxide, CoO. This metal reacts with fluorine (F2) at 520 K to produce CoF3; And with chlorine (Cl2), bromine (Br2) and iodine (I2), it produces equivalent binary halides. Even when heated, it does not react with hydrogen gas (H2) or nitrogen gas (N2) but reacts with boron, carbon, phosphorus, arsenic and sulfur. At normal temperatures, it reacts slowly with mineral acids and very slowly with moist air, but not with dry air.
Methyl ethyl ketone peroxide (acid)
An organic peroxide is an oily liquid and is highly explosive. Methyl ethyl ketone peroxide burns the skin severely and can cause eye damage or blindness. In the industry, it is used as a catalyst in baking unsaturated polyester resins, fiberglass, plastics, and in casting. For this purpose, ethyl methyl ketone peroxide is dissolved in dimethyl phthalate and diallyl phthalate to reduce the sensitivity of this material to shock and make it easy to use.
Styrene monomer
It is a combustible liquid and its steam processes an explosive dirham with air. Near its ignition, it is 1.1 and 1.6% by volume of styrene vapor in the air, and its emitting point is 32 degrees Celsius. Considering that its steam is heavier than air, this gas can travel a long distance to reach a source of embers and cause embers to return. To turn it off, water can be used as spray, CO2, chemical powder or foam. It should be seen that explosive organic peroxides can be formed during fire. Guard glasses and masks should be used during extinguishing operations.
Reviews
There are no reviews yet.