Sulfuric Acid 96% ACS Grade

Product Overview

Sulfuric Acid 96% ACS Grade (H₂SO₄) is a highly corrosive, strong mineral acid renowned for its dehydrating properties and potent oxidizing capability. This ACS-grade solution delivers high purity with minimal impurities, ensuring reliable performance in demanding laboratory and industrial workflows. Its available assay range (96–99.5 wt%) supports precise formulation in chemical synthesis, electrochemical applications, and analytical protocols. The product's low residue after ignition and controlled impurity profile help protect sensitive reactions and instrumentation, making it a trusted standard across quality-controlled environments.

In practical use, the acid serves as a versatile reagent for pH adjustment, dehydration in organic syntheses, and as a catalyst or reactant in processes ranging from fertilizer production to biodiesel transesterification. Typical specifications, including a typical assay near 98.5 wt% and a density around 1.84 g/mL at 20°C, align with stringent industry requirements (ACS Reagent Grade, USP-NF Monograph). The solution is stored in corrosion-resistant containers, maintained under controlled conditions to preserve purity, and validated against rigorous test methods such as ICP-OES, IC, and titration against standardized NaOH.

Key Properties

• Product Name: Sulfuric Acid 96% ACS Grade
• Chemical Formula: H₂SO₄
• Molecular Weight: 98.08 g/mol
• Assay (wt%): Min 96, Max 99.5, Typical 98.5
• Specific Gravity (20°C): Min 1.84, Max 1.88, Typical 1.86
• Appearance: Clear, colorless to slightly yellow liquid
• Boiling Point: 337–338°C
• Residue After Ignition: Max 0.05 wt% (Typical 0.02)
• Chloride (Cl⁻): Max 0.5 ppm (Typical 0.2)
• Nitrate (NO₃⁻): Max 2 ppm (Typical 0.5)
• Heavy Metals (as Pb): Max 0.2 ppm (Typical 0.05)
• Iron (Fe): Max 0.2 ppm (Typical 0.05)
• Sulfate (SO₄²⁻): Max 50 ppm (Typical 10)

Common Applications

• Application Category: Electrolyte in Lead-Acid Batteries – Used as the primary electrolyte in energy storage systems, delivering high ionic conductivity and stable performance under automotive operating conditions.
• Application Category: pH Adjustment in Water Treatment – Adjusts pH in neutralization schemes while maintaining controlled impurity levels to minimize downstream corrosion and scaling.
• Application Category: Reagent in Chemical Synthesis – Employed in organic and inorganic syntheses, including fertilizer production, where high purity is essential for reaction efficiency.
• Application Category: Dehydrating Agent in Organic Chemistry – Facilitates dehydration steps in synthesis and analytical protocols, enabling efficient formation of anhydrous conditions.
• Application Category: Catalyst in Biodiesel Production – Serves as a catalyst/acid promoter in transesterification to improve conversion and processing rates.

Safety Precautions

Handle with appropriate PPE including chemical-resistant gloves, splash-resistant goggles or a face shield, and a lab coat. Store in a cool, dry, well-ventilated area in corrosion-resistant containers (HDPE or glass) away from incompatible materials, particularly bases and organic substances. Ensure containers are kept tightly closed when not in use to minimize moisture uptake and fuming risk; use secondary containment for spill prevention.

In case of exposure, follow the SDS guidance: for eyes, rinse cautiously with water for several minutes and seek medical attention; for skin, remove contaminated clothing and rinse with water, seeking medical aid if irritation persists; for inhalation, move to fresh air and monitor; for ingestion, rinse mouth and seek immediate medical attention. Transport is designated UN 1830, Sulfuric acid, Class 8, PG II.

Benefits

✔ High Purity ACS Grade – Meets or exceeds ACS Reagent Grade specifications and USP-NF monograph requirements, ensuring suitability for stringent analytical and synthetic applications.
✔ Excellent Impurity Control – Low chloride, nitrate, and heavy metal content minimizes contamination risks in sensitive processes.
✔ Reliable Physical Properties – Consistent specific gravity, low residue, and stable density across standard storage conditions support reproducible formulations.