Potassium dichromate, with the chemical formula K2Cr2O7, is a chemical compound made up of potassium ions (K+) and dichromate ions (Cr2O7^2-).
Potassium dichromate is a bright orange or red-orange crystalline solid.
Potassium dichromate is a powerful oxidizing agent and is often used in laboratories and various industrial applications.
Potassium dichromate is highly toxic and poses several health and environmental hazards.
CAS Number: 7778-50-9
EC Number: 231-906-6
APPLICATIONS
Potassium dichromate is widely used as an oxidizing agent in chemical laboratories for various analytical and synthetic purposes.
Potassium dichromate plays a critical role in titration methods, especially in redox titrations, to determine the concentration of reducing agents.
In the manufacturing of pigments, it is utilized to produce vivid and colorfast colors for inks, dyes, and paints.
Potassium dichromate has historically been employed in early photography as a key component in photographic emulsions.
In electroplating processes, it serves to create corrosion-resistant and durable metal coatings on various substrates.
Potassium dichromate is used in wood preservation to protect wood against decay and insect infestation.
In chemical synthesis, it is vital in the conversion of primary alcohols into aldehydes.
Potassium dichromate is a fundamental ingredient in the creation of pyrotechnic compositions, enhancing the colors and effects of fireworks.
Potassium dichromate is involved in the production of artificial gemstones, contributing to the vibrant colors of synthetic gem materials.
Potassium dichromate has applications in the field of metallurgy, aiding in the purification of certain metals.
Potassium dichromate is used as a catalyst in some industrial chemical processes, facilitating the conversion of raw materials into useful products.
In the textile industry, it is employed in the production of dyes and pigments for fabric coloring.
Some specialty batteries utilize potassium dichromate in their design, harnessing its oxidizing properties.
Potassium dichromate is a part of certain etching and engraving processes, where it plays a role in creating intricate designs on metal surfaces.
In the field of glass manufacturing, it contributes to the production of various types of colored glass.
Potassium dichromate is employed in the production of corrosion-resistant coatings for steel structures and equipment.
Potassium dichromate has been used in the formulation of anti-fouling paints for ship hulls to prevent the attachment of marine organisms.
In analytical chemistry, it is used for quality control and calibration purposes, ensuring the accuracy of measurement instruments.
Potassium dichromate is crucial in the synthesis of specialty chemicals and pharmaceuticals.
In the field of gemology, it aids in testing and identifying gemstones based on their reactions with the compound.
Potassium dichromate is used in the preparation of chemical reagents for laboratory testing, often as a part of reagent kits.
Potassium dichromate is involved in soil testing to assess nutrient and mineral content.
In the ceramics industry, it contributes to the creation of vibrant glazes and finishes.
Potassium dichromate is employed in the preparation of developer solutions for certain photographic processes.
Potassium dichromate is used in the production of sealing compounds for laboratories and manufacturing facilities, ensuring a secure and tamper-evident seal.
Potassium dichromate finds application in the preservation of biological specimens in laboratories, helping to prevent decay and maintain specimen integrity.
In the chemical industry, it is utilized in the manufacture of specialty chemicals, including those used in the production of pharmaceuticals and agrochemicals.
Potassium dichromate is involved in the preparation of reagents for volumetric analysis, ensuring the accuracy of chemical measurements.
In the field of metallurgy, it assists in refining metals and alloys, playing a role in processes like metal extraction and purification.
Potassium dichromate is employed in the printing industry, contributing to the formulation of inks for various printing methods.
In the creation of anti-corrosion coatings for metal structures and equipment, it helps protect against rust and degradation.
Potassium dichromate has been used in the historical preservation of documents and artwork, aiding in the restoration and conservation of cultural heritage.
Potassium dichromate is utilized in the production of corrosion-resistant coatings for aluminum surfaces, extending their lifespan.
Potassium dichromate serves as a catalyst in certain organic reactions, facilitating the synthesis of valuable chemical intermediates.
In the tanning industry, it plays a role in the treatment of leather to enhance its quality and durability.
Potassium dichromate is applied in soil testing to assess soil composition and nutrient content for agricultural and environmental purposes.
In the electronics industry, it is used in the etching of printed circuit boards to create intricate pathways for electrical components.
Potassium dichromate contributes to the creation of colorfast and durable inks for marking and labeling applications.
Potassium dichromate is an essential component in the manufacture of anti-fouling coatings for ships, preventing the attachment of marine organisms.
Potassium dichromate is used in analytical chemistry for the calibration and standardization of analytical instruments and measurement tools.
In the textile industry, Potassium dichromate aids in the development of dyeing processes to achieve vibrant and long-lasting colors on fabrics.
Potassium dichromate has been employed in the creation of corrosion-resistant coatings for aerospace components and structures.
In the production of specialty glass, it contributes to the formulation of colored and tinted glass products.
Potassium dichromate is used as a laboratory reagent in various chemical and biochemical experiments and tests.
Potassium dichromate is involved in the synthesis of polymer additives that improve the properties of plastics and rubber materials.
In the mining industry, it plays a role in the extraction and separation of valuable minerals from ore.
The chemical assists in the creation of heat-resistant coatings for industrial equipment, furnaces, and chimneys.
Potassium dichromate is used in the formulation of sealants for laboratories and cleanroom facilities, ensuring airtight and sterile environments.
In gemology, it is applied for testing gemstones and identifying their authenticity based on their reactions with the compound.
Potassium dichromate finds application in the creation of specialty adhesives and bonding agents used in industries like aerospace and automotive manufacturing.
Potassium dichromate plays a role in the development of corrosion-resistant coatings for pipelines and storage tanks in the oil and gas industry.
In the field of ceramics, it is used to create glazes for pottery and ceramics, enhancing their appearance and durability.
Potassium dichromate is employed in the production of colorants for the textile and fashion industry, allowing for vibrant and long-lasting fabric dyes.
In the field of water treatment, it aids in the removal of contaminants and impurities through oxidation and precipitation reactions.
Potassium dichromate is involved in the creation of pigments used in the automotive industry, contributing to the coloration of paints and coatings.
Potassium dichromate plays a role in the formulation of high-temperature-resistant coatings for industrial ovens and equipment subjected to extreme heat.
In forensic science, Potassium dichromate is utilized as a reagent in the analysis of physical evidence, helping to identify substances and determine their composition.
Potassium dichromate is applied in the manufacturing of rust converters and rust removers, facilitating the restoration of corroded metal surfaces.
Potassium dichromate is used in the calibration of spectrophotometers and colorimeters, ensuring accurate color measurements in various applications.
In the field of optoelectronics, it contributes to the fabrication of color filters and optical components used in displays and sensors.
Potassium dichromate is involved in the formulation of high-quality ceramics for electrical insulators, ensuring electrical safety in power distribution.
In the food industry, it is used in certain food coloring applications, adhering to strict safety regulations and guidelines.
Potassium dichromate plays a role in the production of specialty papers with enhanced resistance to moisture and degradation.
Potassium dichromate is utilized in the development of colored glassware, contributing to the aesthetic appeal of glass products.
In analytical chemistry, it is employed in the assessment of water quality, helping to detect and quantify pollutants and contaminants.
Potassium dichromate aids in the production of durable and weather-resistant coatings for outdoor structures, such as bridges and outdoor sculptures.
Potassium dichromate is used in the creation of anti-graffiti coatings that make it easier to remove unwanted markings from surfaces.
In the construction industry, it contributes to the formulation of adhesives for structural applications and concrete repair.
Potassium dichromate finds application in the aerospace sector for surface treatments to enhance the durability and performance of aircraft components.
Potassium dichromate is used in the calibration and validation of environmental monitoring equipment, ensuring accurate measurements of air and water quality.
Potassium dichromate assists in the creation of heat-resistant seals for high-temperature applications, such as furnaces and industrial ovens.
In the field of art restoration, it is applied to remove discolored varnishes and stains from paintings and artifacts.
Potassium dichromate plays a role in the development of specialty coatings for solar panels, improving their efficiency and longevity.
Potassium dichromate is used in the preparation of inks for banknotes and official documents to incorporate security features.
In the automotive industry, it contributes to the development of corrosion-resistant coatings for undercarriage protection and vehicle parts.
Potassium dichromate is used in the manufacturing of ceramic capacitors, which find applications in electronics for energy storage and signal filtering.
In the field of historical artifact preservation, museums and cultural institutions have used it to restore and conserve artworks, manuscripts, and metal artifacts.
Potassium dichromate is involved in the production of stained glass, contributing to the vivid and intricate designs found in churches, cathedrals, and decorative windows.
Potassium dichromate plays a role in the fabrication of solar control films and window tints, enhancing the energy efficiency of buildings and vehicles.
In microbiology, Potassium dichromate is used for the staining of certain cellular structures and microorganisms, aiding in microscopic examinations.
Potassium dichromate assists in the creation of anti-reflective coatings for optical lenses, reducing glare and improving visual clarity.
In the field of fuel cell technology, it is utilized for the development of catalysts that enhance energy conversion and storage.
Potassium dichromate is employed in environmental monitoring for the detection and quantification of pollutants in soil and water samples.
Potassium dichromate finds application in the creation of thermochromic materials, which change color in response to temperature variations, for use in sensors and indicators.
In geology and mineralogy, it is used to perform various tests to identify minerals and assess their properties.
Potassium dichromate plays a role in the production of fluorescent coatings for signage, enhancing visibility in low-light conditions.
In the pulp and paper industry, it is used to assess and control the bleachability of wood pulp in papermaking processes.
Potassium dichromate is applied in the testing of materials for resistance to oxidation and corrosion, critical in materials science and engineering.
Potassium dichromate is involved in the formulation of specialty adhesives for bonding difficult-to-adhere materials, such as glass and ceramics.
In forensic toxicology, it is employed in the analysis of biological specimens to detect the presence of drugs and toxins.
Potassium dichromate contributes to the development of specialty coatings for automotive headlights, providing durability and protection.
In the production of fine china and porcelain, it is used to create intricate and colorful designs on tableware and decorative items.
Potassium dichromate is applied in quality control and assurance procedures for monitoring and ensuring the consistency and quality of products.
In the field of gem cutting and polishing, it helps shape and enhance the appearance of gemstones, including diamonds.
Potassium dichromate assists in the fabrication of high-temperature-resistant seals for industrial furnaces and kilns.
Potassium dichromate is used in the restoration and conservation of historical architectural features, such as stained glass windows and decorative metalwork.
In the fabrication of photovoltaic cells, it plays a role in enhancing the efficiency and performance of solar panels.
Potassium dichromate is involved in the creation of anti-tarnish coatings for jewelry and silverware, preserving their shine.
In the aerospace industry, it contributes to the development of coatings that protect aircraft from corrosion and environmental stress.
Potassium dichromate finds applications in nanotechnology, where it is used in the synthesis and manipulation of nanoparticles with specific properties for diverse applications.
DESCRIPTION
Potassium dichromate, with the chemical formula K2Cr2O7, is a chemical compound made up of potassium ions (K+) and dichromate ions (Cr2O7^2-).
Potassium dichromate is a bright orange or red-orange crystalline solid.
Potassium dichromate is a powerful oxidizing agent and is often used in laboratories and various industrial applications.
Potassium dichromate is highly toxic and poses several health and environmental hazards.
Potassium dichromate is a bright orange or red-orange crystalline solid with a distinctive color.
Potassium dichromate compound has the chemical formula K2Cr2O7, consisting of potassium ions and dichromate ions.
Potassium dichromate is known for its powerful oxidizing properties, making it a valuable chemical reagent in various applications.
Potassium dichromate is highly water-soluble and can easily dissolve in water to form a bright orange solution.
Potassium dichromate is a well-recognized chemical in laboratories, commonly used for its oxidizing and analytical capabilities.
Potassium dichromate has a strong, acrid odor and a bitter taste, which makes it easily detectable.
Due to its toxicity, handling and storage require strict safety precautions and adherence to safety guidelines.
Potassium dichromate has been used in historical applications, such as wood preservation, although its use has significantly declined due to health and environmental concerns.
Potassium dichromate is often utilized in various analytical techniques, including titrations, where it serves as an oxidizing agent.
Potassium dichromate is a key component in several chemical reactions, particularly those involving the conversion of primary alcohols to aldehydes.
In the manufacturing of certain inks and dyes, potassium dichromate plays a role in the synthesis of vibrant and colorfast pigments.
In the field of photography, it was historically used in early photographic processes, serving as an essential ingredient in photographic emulsions.
Potassium dichromate is a mainstay in electroplating processes, contributing to the formation of durable and corrosion-resistant metal coatings.
In pyrotechnics and fireworks, potassium dichromate can enhance the vibrant colors produced during combustion.
Some artificial gemstones are created using this chemical, thanks to its role in producing coloration.
Potassium dichromate is known for its intense and vibrant orange hue, making it easily identifiable.
Its oxidizing strength is attributed to its ability to release oxygen when exposed to reducing agents, promoting chemical reactions.
Due to its toxicity, contact with skin, eyes, or ingestion should be strictly avoided, and protective equipment is a must when handling it.
The use of this chemical in wood preservation was popular in the past but has waned significantly due to environmental concerns and safer alternatives.
Potassium dichromate is one of the chemicals that have contributed to the development of analytical chemistry, particularly in redox reactions and titrations.
PROPERTIES
Physical Properties:
Chemical Formula: K2Cr2O7
Molecular Weight: 294.18 g/mol
Appearance: Bright orange or red-orange crystalline solid
Odor: Strong, acrid odor
Taste: Bitter taste
Density: 2.676 g/cm³
Melting Point: 398 °C (748 °F)
Boiling Point: Decomposes before boiling
Solubility: Highly soluble in water, forming a bright orange solution
Solubility in Other Solvents: Soluble in hot concentrated sulfuric acid
Crystal Structure: Orthorhombic
Chemical Properties:
Chemical Category: Inorganic compound, chromate
Oxidation State: Chromium exists mainly in the +6 oxidation state.
Oxidizing Properties: Potassium dichromate is a powerful oxidizing agent, releasing oxygen in reactions.
Redox Reactions: It participates in numerous redox reactions, particularly as an oxidizing agent.
Toxicity: Highly toxic, posing significant health and environmental hazards.
Decomposition: Decomposes upon heating, releasing toxic fumes.
Acidity: Potassium dichromate is acidic and can react with bases.
Reducing Agents: It can react violently with reducing agents and combustible materials.
Flammability: Non-flammable, but can promote combustion of other substances.
Compatibility: Incompatible with various chemicals, including strong acids and reducing agents.
FIRST AID
Inhalation:
If Potassium dichromate is inhaled, immediately move the affected person to an area with fresh air.
If the person is having difficulty breathing, seek medical attention promptly.
Administer artificial respiration if the individual stops breathing and is trained to do so.
Keep the affected person calm and at rest while awaiting medical assistance.
Skin Contact:
In case of skin contact with Potassium dichromate, quickly remove contaminated clothing and rinse the affected skin area with plenty of running water for at least 15 minutes.
Use a mild soap to gently wash the skin while rinsing.
Do not rub or scrub the skin, as it may exacerbate chemical exposure.
Seek medical attention if irritation, redness, or burns occur, or if the exposure is extensive.
Eye Contact:
If Potassium dichromate comes into contact with the eyes, it is crucial to act promptly.
Immediately flush the affected eye with gently flowing lukewarm water for at least 15 minutes, holding the eyelids open to ensure thorough rinsing.
Seek immediate medical attention, even while continuing the eye irrigation.
Remove contact lenses if they are being worn, but do so gently and continue rinsing the eye.
Ingestion:
If Potassium dichromate is ingested, do not induce vomiting unless instructed to do so by a medical professional.
Rinse out the mouth with water if the person is conscious and able to do so.
Seek immediate medical attention, bringing the container or label of the chemical for identification.
Be prepared to provide information on the amount ingested, the time of ingestion, and any symptoms experienced.
HANDLING AND STORAGE
Handling:
Personal Protective Equipment (PPE):
When handling Potassium dichromate, wear appropriate personal protective equipment (PPE) including safety goggles, chemical-resistant gloves, a lab coat, and a laboratory apron to minimize skin and eye contact.
Respiratory protection may be necessary if there is a risk of inhalation exposure.
Ventilation:
Work in a well-ventilated area, such as a chemical fume hood or a room with adequate ventilation.
Use local exhaust ventilation to capture and remove any potentially harmful vapors.
Avoid Contact:
Minimize contact with the skin, eyes, and mucous membranes.
Avoid ingestion and inhalation.
Do not touch your face or mouth while working with Potassium dichromate.
Proper Handling Techniques:
Handle Potassium dichromate with care to prevent spills and splashes.
Use non-sparking tools and equipment when necessary.
Be cautious when transferring the chemical from one container to another.
Labeling:
Ensure that all containers, including secondary containers, are properly labeled with the name of the chemical, its hazards, and appropriate warning symbols.
Prohibition of Eating and Drinking:
Do not eat, drink, or smoke while handling Potassium dichromate.
Wash hands thoroughly with soap and water before eating, drinking, or taking breaks.
Chemical Compatibility:
Be aware of chemical compatibility.
Avoid contact between Potassium dichromate and incompatible substances, such as reducing agents, flammable materials, and strong acids.
Storage:
Designated Storage Area:
Store Potassium dichromate in a dedicated storage area that is well-ventilated and separate from other chemicals to prevent potential cross-contamination.
Container Type:
Use chemically compatible containers, such as high-density polyethylene (HDPE) or glass, to store Potassium dichromate.
Ensure containers are tightly sealed to prevent moisture absorption and spillage.
Labeling:
Clearly label storage containers with the chemical name, hazards, and storage precautions.
Include appropriate warning symbols.
Temperature Control:
Store Potassium dichromate away from heat sources and direct sunlight.
Maintain the storage area at a controlled temperature to prevent decomposition or reactions.
Protection from Moisture:
Potassium dichromate is sensitive to moisture, and contact with water can lead to the release of toxic fumes.
Keep the chemical dry and store in airtight containers with desiccants if necessary.
Separation:
Store Potassium dichromate away from incompatible substances, especially reducing agents and flammable materials.
Follow storage segregation guidelines.
SYNONYMS
Dipotassium dichromate
Bichromate of potash
Chromic acid, dipotassium salt
Red potassium chromate
Dipotassium tetraoxochromate
Potassium bichromate
Potassium pyrochromate
Dipotassium chromium(VI) oxide
Potassium dichromate(VI)
Orange salt
Potassium bichromate(VI)
Potassium dichromate anhydrous
Red-orange crystals
Dichromic acid, dipotassium salt
Potassium dichromate anhydrous
Orange chromate
Potassium dichromate(IV)
Potassium dichromate anhydrous
Red potassium dichromate
Dipotassium dichromate(VI)
Dipotassium tetraoxochromate(VI)
Red bichromate of potash
Dipotassium chromium oxide
Potassium orange chromate
Orange crystalline powder
Chromic acid dipotassium salt
Potassium chromate(VI)
Potassium bichromate(VI)
Red-orange dichromate
Potassium dichromate anhydrous
Orange potassium chromate
Potassium pyrochromate(VI)
Red-orange chromate
Potassium dichromate(VI) anhydrous
Dichromate of potash
Dipotassium chromium oxide
Red chromate of potash
Dipotassium dichromate(VI) anhydrous
Potassium dichromate(VI) anhydrous
Redoxon
Dipotassium tetraoxochromate(VI)
Bichromate of potash
Chromate of potash
Dipotassium chromate
Potassium dichromate anhydrate
Potassium dichromate anhydride
Orange salt of chromium
Dipotassium dichromate(IV)
Potassium dichromate anhydrous orange
Red potassium chromate
