Sodium dichromate: Difference between revisions

Latest revision as of 10:49, 15 February 2025

Sodium Dichromate[edit]

Sodium dichromate is an inorganic compound with the formula Na_Cr_O_. It is a common source of the dichromate anion, Cr_O___, and is a powerful oxidizing agent. Sodium dichromate is a red-orange crystalline solid that is highly soluble in water.

Chemical Properties[edit]

Sodium dichromate is a strong oxidizing agent and is used in various industrial processes. It is often used in the production of chromium compounds and as a corrosion inhibitor. The compound is also used in the manufacture of pigments, in metal finishing, and as a mordant in dyeing.

Reactions[edit]

Sodium dichromate reacts with reducing agents to produce chromium(III) compounds. It can also react with acids to produce chromic acid, which is used in cleaning glassware and etching materials.

Production[edit]

Sodium dichromate is produced by the reaction of chromite ore with sodium carbonate and air. The process involves roasting the ore in the presence of sodium carbonate, which converts the chromium to sodium chromate. This is then acidified to produce sodium dichromate.

Applications[edit]

Sodium dichromate is used in a variety of applications due to its oxidizing properties. It is used in the production of leather, in the manufacture of ceramics, and in the synthesis of organic compounds.

Safety and Handling[edit]

Sodium dichromate is highly toxic and carcinogenic. It poses significant health risks if inhaled or ingested, and it can cause severe skin burns. Proper safety precautions, including the use of personal protective equipment, are essential when handling this compound.

Environmental Impact[edit]

Sodium dichromate is a significant environmental pollutant. It is highly toxic to aquatic life and can cause long-term adverse effects in the aquatic environment. Efforts to reduce the use of sodium dichromate in industrial processes are ongoing, with a focus on finding safer alternatives.

Related Pages[edit]

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-'''Sodium dichromate''' is an [[inorganic compound]] with the formula Na2Cr2O7. It is a powerful [[oxidizing agent]] and is a common ingredient in laboratories and industries. Sodium dichromate is a crystalline solid, usually bright orange in color. It is highly corrosive and is a strong oxidizer, which makes it a hazardous substance to handle.
+{{DISPLAYTITLE:Sodium dichromate}}
-==Chemical properties==
+== Sodium Dichromate ==
-Sodium dichromate is a strong oxidizing agent. It is soluble in water and its solutions are acidic due to the formation of [[chromic acid]]. The compound is a strong oxidizer that can ignite or enhance the combustion of other materials. Sodium dichromate is also a known [[carcinogen]].
+[[File:Na2Cr2O7.png|thumb|right|Structural formula of sodium dichromate]]
+'''Sodium dichromate''' is an inorganic compound with the formula Na_Cr_O_. It is a common source of the dichromate anion, Cr_O___, and is a powerful oxidizing agent. Sodium dichromate is a red-orange crystalline solid that is highly soluble in water.
-==Production==
+== Chemical Properties ==
-Sodium dichromate is produced industrially by the reaction of [[sodium chloride]] with [[potassium dichromate]]. This process is known as the [[Leblanc process]]. The reaction produces sodium dichromate and potassium chloride as by-products.
+Sodium dichromate is a strong oxidizing agent and is used in various industrial processes. It is often used in the production of [[chromium]] compounds and as a corrosion inhibitor. The compound is also used in the manufacture of [[pigments]], in metal finishing, and as a mordant in dyeing.
-==Uses==
+=== Reactions ===
-Sodium dichromate has a wide range of uses in various industries. It is used in the production of [[chromic acid]], in the tanning of leather, in the dyeing of textiles, and in the manufacture of other chromium compounds. It is also used as a wood preservative and as a corrosion inhibitor in cooling towers.
+Sodium dichromate reacts with reducing agents to produce chromium(III) compounds. It can also react with acids to produce [[chromic acid]], which is used in cleaning glassware and etching materials.
-==Health effects==
+== Production ==
-Exposure to sodium dichromate can cause severe health effects. It is a known carcinogen and can cause lung cancer if inhaled. It can also cause skin and eye irritation, and prolonged exposure can lead to kidney and liver damage.
+Sodium dichromate is produced by the reaction of [[chromite]] ore with sodium carbonate and air. The process involves roasting the ore in the presence of sodium carbonate, which converts the chromium to sodium chromate. This is then acidified to produce sodium dichromate.
-==See also==
+== Applications ==
+Sodium dichromate is used in a variety of applications due to its oxidizing properties. It is used in the production of [[leather]], in the manufacture of [[ceramics]], and in the synthesis of [[organic compounds]].
+=== Safety and Handling ===
+[[File:Na2Cr2O7.png|thumb|left|Sodium dichromate crystals]]
+Sodium dichromate is highly toxic and carcinogenic. It poses significant health risks if inhaled or ingested, and it can cause severe skin burns. Proper safety precautions, including the use of personal protective equipment, are essential when handling this compound.
+== Environmental Impact ==
+Sodium dichromate is a significant environmental pollutant. It is highly toxic to aquatic life and can cause long-term adverse effects in the aquatic environment. Efforts to reduce the use of sodium dichromate in industrial processes are ongoing, with a focus on finding safer alternatives.
+== Related Pages ==
 * [[Chromium]]
+* [[Chromic acid]]
 * [[Oxidizing agent]]
-* [[Leblanc process]]
+* [[Pigment]]
-==References==
-<references />
+[[Category:Chromium compounds]]
+[[Category:Oxidizing agents]]
 [[Category:Inorganic compounds]]
-[[Category:Oxidizing agents]]
-[[Category:Carcinogens]]
-{{Chem-stub}}