Zinc chloride is a chemical compound of two elements - chlorine and zinc - and is denoted by the formula ZnCl2.This material is a white crystals.Zinc chloride
reasonably soluble in water - at room temperature, the solubility is 80%.Chloride melts at 322 ° C, and boils at 722 ° C.
turns zinc chloride in two ways.First Embodiment: zinc oxide, or is dissolved in hydrochloric acid, after which the resulting mixture of the solution is evaporated.Second Embodiment: zinc (liquid) is heated in a stream of chlorine.
zinc chloride hydrolysis occurs cationic and has the following formula: ZnCl2 + H2O = HCl + ZnOHCl.Wednesday resulting solution - Acid.
industrial production zinc chloride is produced in two forms: solid and liquid.In solid form, the substance must be in the form of white flakes acceptable slight coloration in any color.In the form of sodium chloride should be colorless or have a slight yellowish tint.The solution may be slightly muddled.
In solid form, the mass fraction of chloride should not be less than 97.7% in the solution - 50%.Zinc chloride is not flammable.
The substance is very dangerous for the surrounding nature and man: the solid has a grade 2 toxicity.The material in contact with skin and mucous membranes of humans or animals, causing irritation, while more prolonged contact with skin causes burns, corrodes the fabric.Formed in this way is very difficult to heal wounds.
danger is getting the substance and the respiratory tract.In small doses, causing a tickle in the nasopharynx and throat, dry cough.Inhalation of large amounts of chloride may cause shortness of breath and so-called choking breath.
If substance on the mucous eye, the victim feels quite intense cutting pain.If the eyes are not rinsed immediately, there may be total or partial blindness.
Because of the toxicity of zinc chloride, in transit, and use extreme caution must be observed.Crystalline zinc chloride packaged in bags or drums made of carbon steel, the solution transported to special steel barrels or tanks.
Transportation substances is carried out both by rail and by road and sea transport.The substance is transported only in closed compartments and all the while conveying the responsible person is obliged to monitor the integrity of packaging.
When using zinc chloride workers are required to wear the appropriate level of concentration of the substance in the air overalls, rubber gloves, goggles and respirators.
In no case should not be allowed contact with zinc chloride in water bodies and sewage systems.
Zinc chloride is used in many areas of production.It is used for the impregnation of wooden parts with the purpose of disinfection (e.g., wood sleepers).This substance is involved in the manufacture of fiber, many dyes, many dental cements, cotton, zinc cyanide, aluminum and even vanillin.In addition, zinc chloride is used to clean metal surfaces prior to painting, chrome plating and soldering.Important role this substance plays in petroleum refining, the analysis of samples of coal and the production of galvanic batteries.
Zinc chloride is also used for dyeing cotton goods, produce viscose fibers, as an electrolyte - when galvanizing.Possible to use the substance in medicine - a drug that stops the rot;gardening - as micronutrient fertilizers.
addition, zinc chloride, due to their brilliance eager deliquescent used as the desiccant.Also, it is indispensable and fire prevention, as is involved in manufacture of the flame-retardant foam, and impregnation of tissue and paperboard.
