Radium sulfate (RaSO4) is a highly insoluble radioactive compound with the molecular formula RaSO4 and a molecular weight of 322.0626 g/mol. It is formed when radium combines with a sulfate ion and is known for being the most insoluble sulfate in chemistry. Radium sulfate appears as white rhomb crystals when pure, but its color may vary to yellow, orange, or pink when impure. It is a decay product in the 238U series and has a CAS Number of 7446-16-4.
7446-16-4
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Basic information
- Product Name: RADIUMSULFATE
- Synonyms: RADIUMSULFATE;Sulfuric acid radium salt
- CAS NO:7446-16-4
- Molecular Formula: RaSO4
- Molecular Weight: 322.0891
- EINECS: N/A
- Product Categories: N/A
- Mol File: 7446-16-4.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: 330°Cat760mmHg
- Flash Point: °C
- Appearance: /white crystals
- Density: g/cm3
- Vapor Pressure: 3.35E-05mmHg at 25°C
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- Water Solubility: insoluble H2O, acids [HAW93]
- CAS DataBase Reference: RADIUMSULFATE(CAS DataBase Reference)
- NIST Chemistry Reference: RADIUMSULFATE(7446-16-4)
- EPA Substance Registry System: RADIUMSULFATE(7446-16-4)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 7446-16-4(Hazardous Substances Data)
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7446-16-4 Usage
Uses
1. Used in Research and Scientific Applications:Radium sulfate is used as a research compound for studying its unique insolubility properties and radioactive characteristics. Its insolubility in water makes it an interesting subject for chemical and physical studies.
2. Used in Environmental and Health Studies:
Due to its presence as a decay product in the 238U series, radium sulfate is used in environmental and health studies to understand the accumulation of radon in household basements and its potential impact on human health.
3. Used in Radioactive Waste Management:
Radium sulfate's insolubility and radioactivity make it a relevant compound for research in radioactive waste management and disposal techniques, aiming to minimize the environmental and health risks associated with radioactive materials.
4. Used in Industrial Applications:
Although not explicitly mentioned in the provided materials, radium sulfate's radioactivity could potentially be utilized in industrial applications such as radiography, radiotherapy, or as a source of radium for other industrial processes. However, due to its hazardous nature, strict safety measures and regulations would be required for such uses.
Check Digit Verification of cas no
The CAS Registry Mumber 7446-16-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.Calculate Digit Verification of CAS Registry Number 7446-16:
(6*7)+(5*4)+(4*4)+(3*6)+(2*1)+(1*6)=104
104 % 10 = 4
So 7446-16-4 is a valid CAS Registry Number.
InChI:InChI=1/H2O4S.Ra/c1-5(2,3)4;/h(H2,1,2,3,4);/p-2
7446-16-4Upstream product
7446-16-4Downstream Products
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