Sulfuric Acid 37% - Battery Acid

Product Overview

Sulfuric Acid 37% — Battery Acid is a highly corrosive, strong mineral acid formulated specifically for demanding industrial and electrochemical applications. Explore our full range of high-purity acids to find the correct concentration for your operations. With a chemical identity defined by CAS Number 7664-93-9, molecular formula H2O4S, and a molecular weight of 98.08, this product represents a stable, aqueous dilution of sulfuric acid. As a critical component in lead-acid battery technology, this specific 37% concentration provides optimal electrolyte performance, facilitating the necessary reversible electrochemical reactions that store and release electrical energy in backup power systems and industrial machinery.

Alliance Chemical supplies this colorless, odorless oily liquid to meet the rigorous specifications required by industrial operators, manufacturers, and fleet maintenance departments. This concentration exhibits a density of 1.841 (EPA, 1998) — which is denser than water — and is completely miscible in water, releasing significant heat upon dilution. Due to its corrosive nature, it must be handled with extreme precision and under strict safety protocols. This material serves as a foundational acid in chemical manufacturing, metals processing, and industrial battery servicing across North America.

Why This Grade

Choosing a precise 37% concentration of sulfuric acid is critical for electrochemistry and industrial battery manufacturing. In lead-acid batteries, the electrolyte concentration must remain within a narrow tolerance band to ensure proper ion mobility and prevent degradation of the lead plates. If the concentration is too high, it accelerates the sulfation process and corrodes the internal grids, permanently reducing the battery’s capacity and overall lifespan.

Conversely, utilizing an under-concentrated acid leads to insufficient voltage output, sluggish performance, and premature cell failure under load. Alliance Chemical's 37% battery acid concentration prevents these failure modes, ensuring consistent electrolyte conductivity without introducing unwanted trace contaminants. Using the incorrect concentration or an unverified grade in industrial batteries can cause rapid plate degradation, internal short circuits, and complete system failure, making precise concentration control essential.

Industrial Applications

• Formulation and maintenance of lead-acid battery electrolytes used in heavy duty industrial forklifts, backup power systems, and telecommunications infrastructure.
• Metal surface treatment and pickling processes to remove scale, oxides, and impurities from steel and iron before subsequent coating or plating.
• pH adjustment and neutralization of alkaline wastewater streams in industrial facilities to comply with environmental discharge regulations.
• Chemical synthesis of sulfate compounds and industrial dyes where a controlled, pre-diluted sulfuric acid concentration is required for reaction safety.
• Anodizing and surface preparation of aluminum parts in aerospace and automotive manufacturing to generate a durable oxide protective layer.

Hazmat & Shipping

This product is classified as a regulated hazardous material for transport. It must be shipped under strict compliance with DOT regulations as UN2796, Hazard Class 8, Packing Group II. The proper shipping name for this material is Sulfuric acid, with not more than 51 percent acid. In accordance with GHS safety guidelines, this chemical is designated with the signal word Danger due to its severe corrosive properties. Standard transport procedures demand specialized hazmat packaging and certified carriers to ensure safe transit from our facilities to your industrial site.

The associated GHS hazard statement for this product is H314, indicating that it causes severe skin burns and eye damage. To mitigate these risks, personnel must wear appropriate personal protective equipment (PPE) during handling, as specified in the Safety Data Sheet (SDS) provided with every order. This includes chemical-resistant gloves, a full face shield, protective aprons, and acid-resistant boots. Ensure proper ventilation or respiratory protection is utilized to prevent the inhalation of aerosols or mists. A Certificate of Analysis (COA) is available upon request to verify compliance with your chemical management system.

Handling & Storage

Store Sulfuric Acid 37% in a cool, dry, well-ventilated area, ideally between 50°F and 80°F, away from direct sunlight and moisture. Compatible storage containers include high-density polyethylene (HDPE), fluoropolymer plastics, or glass; avoid contact with metals such as iron, zinc, or aluminum, as the acid will react to generate flammable hydrogen gas. Keep this material strictly separated from strong bases, organic materials, carbides, chlorates, and strong reducing agents to prevent hazardous exothermic reactions. Ensure spill containment kits are easily accessible in all storage areas.

Order & Documentation

Alliance Chemical provides comprehensive documentation and reliable supply chains for all industrial operations. We offer multiple packaging configurations to suit your facility's scale, from individual quarts to high-volume bulk quantities. To ensure your operational safety and regulatory compliance, we make technical documentation readily available. Please utilize our online system to Request a Quote for bulk pricing or Download the SDS for complete safety parameters.

Why Buy from Alliance Chemical

Since 1997, Alliance Chemical has supplied premium industrial chemicals from Taylor, Texas under CAGE Code 1LT50, with a COA and SDS included on every order. For industrial use only.