Description

Sulfonitric Mixed Acid is a powerful and versatile nitrating and sulfonating agent, primarily composed of a mixture of sulfuric acid and nitric acid. This formulation is critical for introducing nitro and sulfo groups into organic molecules, enabling the synthesis of a wide range of industrial intermediates. It is an essential raw material for manufacturers in the pharmaceutical, agrochemical, dye, and explosives industries who require efficient and controlled aromatic substitution reactions.

Application

• Nitration Reactions: Primary reagent for the production of nitrobenzene, nitrotoluenes, and other nitroaromatic compounds used in dyes, plastics, and pharmaceuticals.
• Sulfonation Processes: Key agent for manufacturing sulfonic acids and sulfonates, which are vital intermediates for detergents, surfactants, and ion-exchange resins.
• Explosives Manufacturing: Used in the controlled nitration of organic compounds like toluene and cellulose to produce intermediates for explosives and propellants.
• Agrochemical Synthesis: Employed in the production of certain herbicides, insecticides, and fungicides where nitro or sulfonyl functional groups are required.
• Pharmaceutical Intermediates: Facilitates the synthesis of complex drug molecules, particularly in creating sulfa drugs and other active pharmaceutical ingredients (APIs).
• Dye and Pigment Production: Essential for synthesizing azo dyes and other colorants through diazotization and subsequent coupling reactions.
• Laboratory Research & Development: Serves as a potent reagent in R&D labs for method development and small-scale specialty chemical synthesis.

Basic Information

Product Name	Sulfonitric Mixed Acid
CAS No.	51602-38-1
Molecular Formula	H₂SO₄ / HNO₃ (Mixture)
Molecular Weight	N/A (Mixture)
Synonyms	Mixed Acid; Nitrating Acid; Sulfuric-Nitric Acid Mixture; Nitration Acid; Sulfonitric Acid; Oleum-Nitric Acid Mixture; NSA (Nitrating Sulfuric Acid)
EINECS	Contact for details

Quality Control

Our Sulfonitric Mixed Acid is manufactured under strict process controls to ensure batch-to-batch consistency and reliability for industrial processes. Quality is verified through analytical methods including titration for acid strength and impurity profiling. A Certificate of Analysis (COA) detailing the exact composition (sulfuric acid %, nitric acid %, nitrogen oxides, water content) is provided with each shipment to guarantee it meets your specific technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from direct heat and incompatible materials such as organic compounds, strong bases, and reducing agents. The container must be made of corrosion-resistant materials like glass or specific grades of stainless steel. Keep away from moisture to prevent dilution and changes in reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification	Complies (IR / Wet tests)
Sulfuric Acid (H₂SO₄) Content	60 - 70 % (w/w)
Nitric Acid (HNO₃) Content	25 - 35 % (w/w)
Nitrogen Oxides (as N₂O₄)	≤ 2.0 %
Water Content	≤ 5.0 %
Specific Gravity (20°C)	1.60 - 1.75

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.