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Nitrosylsulfuric Acid (HNO3S) is a highly reactive inorganic acid. It is a yellow, fuming liquid that is used as a reagent in chemical synthesis, particularly in the production of nitrosyl compounds, which are used in various applications, such as in analytical chemistry, as a reducing agent, and as a catalytic species in organic reactions. Nitrosylsulfuric acid is a highly toxic and corrosive substance and should only be handled by trained professionals using appropriate protective measures.
Nitrosylsulfuric acid is a specialized chemical with distinct properties that make it suitable for advanced chemical processes. Below are its key specifications:
| Property | Details |
Chemical Name | Nitrosylsulfuric Acid (Nitrosyl Hydrogen Sulfate) |
CAS Number | 7782-78-7 |
Linear Formula | HO3SONO |
Molecular Weight | 127.08 g/mol |
Appearance | Yellow, fuming liquid or white to yellowish crystalline solid |
Melting Point | Approximately 73–75°C (decomposes) |
Solubility | Soluble in sulfuric acid; reacts with water to form sulfuric acid (H₂SO₄) and nitric oxide (NO) |
Reactivity | Highly reactive, delivering the nitrosonium ion (NO⁺) for nitrosation reactions |
Stability | Stable in anhydrous conditions; decomposes in the presence of moisture |
Nitrosylsulfuric acid is a versatile reagent used across various industries due to its unique chemical properties. Key applications include:
Caprolactam Production: Essential in the synthesis of caprolactam, a precursor to nylon, through the nitrosation of cyclohexanone oxime.
Diazotization Reactions: Widely used in the production of azo dyes, where it facilitates the formation of diazonium salts.
Organic Synthesis: Acts as a nitrosating agent in the preparation of nitrosyl compounds for pharmaceuticals and specialty chemicals.
Analytical Chemistry: Employed as a reducing agent and catalytic species in various analytical processes.
Catalyst in Organic Reactions: Enhances reaction efficiency in specific organic transformations due to its nitrosonium ion (NO⁺) delivery.
Topfine Chemical supplies nitrosylsulfuric acid tailored to meet the needs of these applications, ensuring consistent quality for industrial-scale operations.
Nitrosylsulfuric acid is a highly toxic and corrosive substance that requires strict safety protocols. Key handling guidelines include:
Hazards: Corrosive to skin, eyes, and respiratory system; releases toxic nitrogen oxide gases upon decomposition.
Protective Measures: Handle only with appropriate personal protective equipment (PPE), including chemical-resistant gloves, goggles, and respiratory protection.
Storage: Store in a cool, dry, airtight container, away from moisture, bases, and reducing agents to prevent hazardous reactions.
Work Environment: Use in a well-ventilated area or under a fume hood to minimize exposure to fumes.
Topfine Chemical emphasizes safe handling practices and provides detailed safety data sheets (SDS) with every order to ensure compliance with industry standards.
Topfine Chemical is a trusted supplier of high-purity nitrosylsulfuric acid (CAS 7782-78-7) for wholesale buyers. Our advantages include:
High Purity: We offer nitrosylsulfuric acid with consistent quality, meeting the stringent requirements of industrial and research applications.
Reliable Supply Chain: Our robust logistics ensure timely delivery for bulk orders, supporting your production schedules.
Expert Support: Our team of chemical experts provides technical guidance and customized solutions to meet your specific needs.
Competitive Pricing: We offer cost-effective wholesale pricing without compromising on quality, making us a preferred partner for chemical sourcing.
Sustainability Commitment: We adhere to environmentally responsible practices in sourcing and distribution.
Partner with Topfine Chemical for a dependable supply of nitrosylsulfuric acid tailored to your industry needs.
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