Chromium oxide is used as an indicator substance used to determine the degree of digestion of feed in the animal feed. Envy is one of the terms frequently used.
Chromium oxide is used as an indicator substance used to determine the degree of digestibility of feed in animal nutrition. It is one of the terms frequently used in medicine.
Oxide with the chemical formula Cr2O3, soluble in all glazes except glazes with high alkali and boron oxide content, providing opacity and giving green color when added at the rate of 2-5%. An indicator substance used to determine the degree of digestibility of feed in animal nutrition.
Chromium oxide is a light-dark green inorganic compound with the chemical formula Cr2O3. It is one of the basic oxides of chromium and is used as a pigment. It is rarely found in nature as the mineral escholaite.
It is insoluble in alcohol, acetone and acid. When chromium oxide is heated, ammonium dichromate decomposes into green chromium oxide, nitrogen and water vapor.
Due to its stability nature, chromium oxide is widely used in pigments. It is a very stable, durable compound. Due to its opacity, it is frequently used to add color, and it also has very good heat resistant properties for use in many industrial areas in the manufacture of paints, coatings, inks, ceramics, refractories and specialty glass.
It is used in paints, inks and glasses. It is the coloring agent called "chrome green". Chromium oxide is the precursor to the magnetic pigment chromium dioxide by the following reaction:
Cr2O3 + 3CrO3 → 5CrO2 + O2
It is used as an indicator to determine the digestion level of feed in animal husbandry.
In glass manufacturing, the addition of green chromium oxide turns the glass a green color. The higher its concentration, the more intense the color. A commercial example of this is a wine bottle. It also provides some light protection to preserve the taste of the wine. Green chromium oxide is also frequently used in the production of refractory bricks for lining metallurgical and glass furnaces / furnaces as its melting point is 2300 ° C.
Green chromium oxide is mostly used in industrial paints where there is a lot of wear. For example, military vehicles are painted with green chromium oxide paint. It retains its color when exposed to high heat and light, making it an ideal option for outdoor applications. Not only does it add color to inks, glasses and paints, green chromium oxide also imparts its forest green hue to plastics (e.g. soda bottles) and ceramics. It mixes well with clay and can be used as a component in varnishes.
INFORMATION ABOUT THE CONTENT
Formula :Cr2O3
Molecular weight: 151.99 g/mol
CAS-No. :1308-38-9
EC-No. :215- 160-9
Appearance dark: Green
Density: 5.22g/cm3
Melting point: 2,435 °C (4,415 °F; 2,708 K)
Boiling point: 4,000 °C (7,230 °F; 4,270 K)
Solubility in water: Insoluble
Solubility in alcohol: Insoluble in alcohol, acetone, acid
Refractive index: (nD) 2.551
Stdmolarentropy: (S o 298) 81 J • mol -1 • K -1
Stdentalpisi formation: (298 O / 1 flH) -1128 KJ • mol -1
STABILITY AND REACTIVITY
It does not react under normal conditions.
1. Chemical stability: Stable under normal conditions.
2. Possibility of hazardous reactions: Does not react hazardously under normal conditions
3. Conditions to avoid: Moisture
4. Substances to avoid: Oxidizing substances
5. Harmful decomposition products: None
It is used in the ceramic industry.
It is used in the production of neutral refractories.
It is used in places that require resistance against both acidic slags and basic slags (incinerators).
