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Rhodizonic Acid Disodium Salt

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Synonyms:
Sodium rhodizonate; 5,6-Dihydroxy-5-cyclohexene-1,2,3,4-tetrone disodium salt
CAS No.:
523-21-7
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Description
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Chemical Name

Rhodizonic acid disodium salt

Synonyms

Sodium rhodizonate; 5,6-Dihydroxy-5-cyclohexene-1,2,3,4-tetrone disodium salt

CAS No.

523-21-7

Molecular formula

C6O6Na2

EINECS No.

208-340-3

Molecular weight

214.04

Molecular Structure

Details

Appearance:Black brown powder

Solubility in water: Passes test

Sensitivity test for barium: Passes test

Solubility: solve in water, water solution is unstable.

Packing: 25kg/ fibre drum

Main Application

 Indicator

 

Key Features
High Purity
Our Rhodizonic Acid Disodium Salt is available in high - purity grades. The minimum purity of our standard product is 98%, and for premium products, it can reach up to 99.5%. We implement a rigorous quality control system throughout the production process. Each batch undergoes comprehensive testing for purity, solubility, and chemical reactivity. This ensures that our product consistently meets and exceeds the highest industry standards, providing you with a reliable and high - performing chemical reagent.
Strong Complex - Forming Ability
Rhodizonic Acid Disodium Salt has a remarkable ability to form complexes with various metal ions. The nitrogen and oxygen atoms in its structure can coordinate with metal ions, leading to the formation of stable metal - complex compounds. This property makes it extremely useful in applications where the detection, sequestration, or separation of metal ions is required.
Color - Changing Property
It exhibits a distinct color - changing property. In the presence of certain metal ions, the color of the solution containing Rhodizonic Acid Disodium Salt can change significantly. For example, when it reacts with barium ions, a characteristic yellow - green precipitate is formed, while with copper ions, a deep - blue complex is produced. This color - changing behavior serves as a visual indicator in analytical and detection applications.
Applications
Analytical Chemistry
  • Metal Ion Detection: In analytical chemistry, Rhodizonic Acid Disodium Salt is widely used for the detection of metal ions. It can be used in qualitative analysis to identify the presence of specific metal ions in samples. For instance, it is a well - known reagent for the detection of barium ions in water samples. The formation of the yellow - green barium rhodizonate precipitate is a reliable and easy - to - observe indication of barium ion presence. In addition, it can also be used in quantitative analysis, where the intensity of the color change or the amount of precipitate formed can be correlated with the concentration of the metal ion.
  • Complexometric Titrations: It can be used in complexometric titrations. By titrating a solution containing a metal ion with a solution of Rhodizonic Acid Disodium Salt, the endpoint of the titration can be determined based on the color change associated with the formation of the metal - complex. This method is useful for accurately determining the concentration of metal ions such as copper, zinc, and lead in various samples, including environmental samples, industrial effluents, and biological fluids.
Environmental Monitoring
  • Water Quality Testing: In environmental monitoring, Rhodizonic Acid Disodium Salt plays a crucial role in water quality testing. It can be used to detect the presence and concentration of heavy metal ions in water sources. Heavy metal pollution in water is a significant environmental concern, and the use of Rhodizonic Acid Disodium Salt provides a simple and effective way to screen for the presence of metals like mercury, cadmium, and chromium. The color - changing property of the reagent allows for quick and visual assessment of water quality, which is especially useful in field testing.
  • Soil Analysis: It can also be applied in soil analysis to determine the availability and concentration of metal ions in soil. The ability of Rhodizonic Acid Disodium Salt to form complexes with metal ions helps in extracting and analyzing metals present in soil samples. This information is valuable for understanding soil fertility, as well as for assessing the potential for metal - related environmental pollution in agricultural and industrial areas.
Material Science
  • Metal - Complex - Based Materials: In material science, Rhodizonic Acid Disodium Salt can be used in the synthesis of metal - complex - based materials. By reacting with metal ions, it can form metal - organic frameworks (MOFs) or coordination polymers. These materials often possess unique properties such as high surface area, porosity, and specific reactivity, which make them useful in applications like gas storage, catalysis, and sensor development. For example, some metal - rhodizonate complexes have been investigated for their potential use in adsorbing harmful gases from industrial emissions.

Safety Information
Hazard Statements
  • Rhodizonic Acid Disodium Salt is harmful if swallowed, inhaled, or absorbed through the skin.
  • It may cause skin and eye irritation. Prolonged or repeated exposure may have adverse effects on health.
  • Contact with strong oxidizing agents can lead to dangerous reactions.
Precautionary Measures
  • When handling this product, always wear appropriate personal protective equipment, including chemical - resistant gloves, safety goggles, and a lab coat or protective apron.
  • Work in a well - ventilated area, preferably under a fume hood, to avoid inhalation of dust or fumes.
  • In case of contact with skin, immediately wash the affected area with plenty of water for at least 15 minutes and seek medical advice. If the compound gets into the eyes, rinse the eyes thoroughly with water for at least 15 minutes, lifting the eyelids occasionally, and then seek immediate medical attention.
  • Do not eat, drink, or smoke in the area where Rhodizonic Acid Disodium Salt is being used.
Сактагыч
  • Store Rhodizonic Acid Disodium Salt in a cool, dry place, away from direct sunlight and heat sources.
  • Keep it in a tightly sealed container to prevent moisture absorption and contact with air, which could potentially affect its chemical properties.
  • Store it separately from incompatible substances such as strong oxidizing agents and acids to avoid dangerous reactions.

Why Choose Our Product?
Quality Assurance
Our manufacturing process adheres to strict international standards. We operate a state - of - the - art production facility equipped with advanced analytical instruments for continuous quality monitoring. Each batch of Rhodizonic Acid Disodium Salt is comprehensively tested for purity, complex - forming ability, and color - changing performance. This ensures that our product consistently meets and exceeds the highest industry standards, providing you with a reliable and high - performing chemical reagent.
Customized Solutions
We understand that different customers have diverse requirements. Whether you need a specific purity level, a particular packaging size, or a customized formulation for your unique application, our team of experts can collaborate with you to develop a tailored solution. We are committed to providing personalized service to meet your exact needs, ensuring that you get the most suitable product for your use.
Competitive Pricing
Despite our focus on delivering top - quality products, we offer Rhodizonic Acid Disodium Salt at competitive prices. We strive to balance cost - effectiveness with product excellence, providing you with the best value for your investment. Our pricing structure is transparent, with no hidden fees, allowing you to make informed purchasing decisions.
Fast and Reliable Delivery
We have an extensive global logistics network in place. Once you place an order, we ensure prompt processing and delivery. Our team works closely with reliable shipping partners to guarantee that your product reaches you in a timely manner, regardless of your location. We also provide tracking information, enabling you to monitor the progress of your shipment and plan your operations accordingly.
Order Now
Ready to experience the benefits of our high - quality Rhodizonic Acid Disodium Salt? Place your order today by contacting our sales team at [phone number] or [email address]. Our dedicated and knowledgeable staff are ready to assist you with any questions or concerns you may have. We look forward to partnering with you and becoming your trusted supplier for all your Rhodizonic Acid Disodium Salt needs.
 

What is the use of Rhodizonic Acid Disodium Salt?


Rhodizonic Acid Disodium Salt is primarily used as a sensitive colorimetric reagent for detecting metal ions, particularly potassium (K⁺), barium (Ba²⁺), and lead (Pb²⁺). In analytical chemistry, it forms vivid, colored complexes with these metals, enabling their identification and quantification in environmental and biological samples. The compound also serves as a redox indicator in titrations due to its distinct color changes under different oxidation states. Additionally, it finds niche applications in organic synthesis and materials science, where its chelating properties help study metal-organic interactions. Its high selectivity makes it valuable for laboratory research and industrial quality control.

 

Is Rhodizonic Acid Disodium Salt toxic to humans?


Rhodizonic Acid Disodium Salt is moderately toxic and requires careful handling. While specific human toxicity data are limited, its structural similarity to other aromatic compounds suggests potential hazards, including skin/eye irritation and possible systemic effects if ingested or inhaled. In laboratory settings, it should be used with protective equipment (gloves, goggles) under fume hoods. Though not classified as a severe carcinogen, prolonged exposure should be avoided. Proper disposal is essential to prevent environmental contamination, as its metal-binding ability could disrupt aquatic ecosystems. Always refer to Safety Data Sheets (SDS) for detailed precautions.

 

Rhodizonic Acid Disodium Salt Feature


The key feature of Rhodizonic Acid Disodium Salt is its exceptional sensitivity to specific metal ions, forming intense red or violet complexes detectable at low concentrations. Its water solubility enhances utility in aqueous analyses, while its redox activity allows dual use as an indicator and chelator. The compound’s planar structure facilitates strong interactions with metals, improving analytical precision. Unlike bulkier reagents, it minimizes interference from non-target ions, ensuring reliable results in complex matrices. These properties make it indispensable for specialized applications in environmental monitoring, metallurgy, and chemical research.

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