the Dichromic mountain Is an rough dibasic oxidizing acid well-known only in solution and also in the kind of dichromatic salts (such together potassium dichromate) who coloration is orange or red.

Its chemical formula is H2Cr2O7 and also can be acquired from 2 molecules that chromic acid, v loss of one molecule that water. It is hygroscopic and absorbs humidity from the environment.




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2 H2CrO4 -> H2Cr2O7 + H2O

The ions that type the dichromic mountain are:

Cr2O7 -2 dichromate anion and also two cations H +

A dichromic mountain compound is potassium dichromate i beg your pardon is a good oxidant.

molecular formula

Cr2H2O7

chemical names

Dichromic acid; Dichromic mountain (VI); Chromic acid (H2Cr2O7); 13530-68-2; Dichromic mountain (H2Cr2O7)

Chemical and physical nature

Calculated nature

molecule weight: 218.001 g / mol Donor hydrogen bonds: 2 Hydrogen bond acceptor: 7 rotary Bonus Account 2 exact mass 218.0039 g / mol Monisotope fixed 217.861 g / mol count of heavy atoms 9 Formal fee 0 complexity 221 variety of isotopic atoms 0

Potassium dichromate

Potassium dichromate is a dichromic acid that has a wide variety of uses, acts together an oxidizer in many chemical and industrial applications and in the dyeing, staining and tanning that leather.

it is additionally used medically together an outside or astringent antiseptic and also is current in part veterinary drugs. Potassium dichromate is considered to be highly toxic and is a corrosive toxicity if ingested internally. Because that this reason, it should be tackled with excessive care. The compound is a crystalline ionic solid and has a really bright reddish-orange color.

characteristics

Potassium dichromate is odorless, that boiling point is 500 degrees Celsius. Potassium dichromate has actually a melting point of 398 degrees Celsius and a molecular weight of 294.18 grams every mole.

Potassium dichromate have the right to be classified as a hexavalent chromium compound because of its oxidation state. The oxidation state is a calculation number that suggests how plenty of electrons are shed or acquired in the atom that a compound.

If the oxidation state is positive, there to be a lose of electrons. An unfavorable oxidation states show an electron obtain for a details atom. Hexavalent chromium compounds, such as potassium dichromate, save the chromium facet in the oxidation state of 6+.

Applications

Potassium dichromate is a chemistry compound commonly used as an not natural chemical reagent because that industrial and laboratory processes. This chemical is also used to develop shoe polishers, glues, paints and waxes. The is additionally commonly used in the laboratory together analytical reagent and potassium dichromate is also used in industry.

The construction industry uses this chemical in cement products to improve density and texture. Specific woods may readjust their illustration (or color) in the visibility of potassium dichromate. This is especially valuable when looking for mahogany or timber floors or show their brighter colors.

Other uses of potassium dichromate include:

leather tanning for footwear Oxidizing agent in the picture printing procedure clean of glassware or sculpture of glassware.

Warnings

Potassium dichromate have to be maintained away native flammable material. Otherwise, girlfriend may have actually an explosive situation to deal with with.

there is an excellent debate about the real health hazards the potassium dichromate. This compound and all various other dichromates are thought about cancer leading to agents or carcinogens through the national Institute of work-related Safety and Health (NIOSH), a united state federal company that is responsible because that research and also recommendations for the avoidance of work-related illness and also injury.

However, the Office that Pesticide programs of the united States eco-friendly Protection firm has classified potassium dichromate together most most likely non-carcinogenic to humans.

The compound deserve to be easily dispersed through the air, make the risk of inhalation among the best dangers linked with it. Lengthy exposure come the chemical by inhalation may cause asthma. The chemical is likewise corrosive to the eyes, skin and also respiratory tract and also may reason damage come the kidneys and liver if swallowed.

Ammonium dichromate

molecule formula

(NH 4) 2 Cr 2 O 7 or Cr 2 H 8 N 2 O 7

chemical names

Ammonium dichromate; Ammonium dichromate; 7789-09-5; Diammonium dichromate; Ammonium dichromate (VI); Ammonium dichromate (VI)

characteristics

The ammonium dichromate is likewise a dichromic mountain salt and also is a bright red-orange crystalline solid. It conveniently ignites and also burns producing a voluminous eco-friendly residue. If cook in a closed container, the container may rupture due to decomposition that the material.

that can additionally act together a solid oxidizing certified dealer if mixed. It is dissolve in water and is odorless. Ammonium dichromate is a very strong oxidant i beg your pardon is frequently used for pyrotechnic compositions together a catalyst. It has likewise been frequently used in photography and lithography.

Ammonium dichromate is a an excellent source of pure nitrogen in the laboratory and also is provided as a catalyst because that the catalytic oxidation that ammonia. It is likewise used to settle dyes and in the manufacture of photosensitive films acting together photoactive.

salt dichromate

molecule formula

Na2 Cr2 O7 or Cr2 Na2 O7

chemical names

salt dichromate; Celcure; salt bichromate; Disodium dichromate; sodium dichromate (VI)

characteristics

salt dichromate is a crystalline, inorganic, orange come red compound the emits toxicity fumes the chromium top top heating. Salt chromate have the right to be converted into a dichromate acid by a continuous process v sulfuric acid, carbon dioxide or a mix of these two.

the molecular weight is 261,965 g / mol. The is highly corrosive and also is a solid oxidizing agent. That is used mostly for the production of various other chromium compounds and also is also used in metal treatments, timber preservatives and also as a corrosion inhibitor.

Warnings

sodium dichromate largely affects the respiratory tract system, causing ulcerations, bronchitis, pneumonia and also asthma as well as it can affect the gastrointestinal tract, liver, kidneys and immune system.

the is a carcinogen and also is associated with risks of arising lung cancer and nasal cavity cancer. Sodium dichromate may be irritating come the skin, eyes and mucous membranes.

Applications

the is offered as a corrosion inhibitor, and in the manufacture of various other chemicals.

health and wellness hazards the dichromic mountain

Dichromatic mountain is toxicity by ingestion. Inhalation of dichromate acid powder is additionally toxic. Dichromatic acid exposed to fire may create irritating, corrosive and also / or toxic gases. Call with the problem may cause severe burns to the skin and eyes.

Fire risk

Dichromatic acid accelerates burning when involved in a fire. May explode as result of heat or contamination. They reaction explosively with hydrocarbons (fuels). It deserve to ignite fuel (wood, paper, oil, clothing, etc.). Containers might explode when heated.

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Other offers of dichromic acids

In addition to the supplies of the ammonium, sodium and also potassium dichromate questioned above, dichromic acids are used in chromium to safeguard metals native corrosion and also to optimize repaint adhesion.