Hydrochloric Acid 37% ACS Reagent Grade

Product Overview

Hydrochloric Acid 37% ACS Reagent Grade is a highly corrosive, strong mineral acid with diverse applications across industrial, laboratory, and manufacturing sectors. Chemically represented as ClH with a molecular weight of 36.46, this aqueous solution consists of hydrogen chloride gas dissolved in water. As a fundamental chemical reagent, it plays a critical role in pH adjustment, chemical synthesis, and metal processing. Industrial users rely on the precise 37% concentration to achieve predictable reaction stoichiometry and consistent manufacturing outcomes. Our acids collection includes various grades to meet specific operational demands, and this high-purity product is manufactured to meet rigorous quality standards, ensuring minimal impurities and reliable performance in demanding chemical environments.

The physical properties of this solution are highly characteristic, appearing as a colorless, watery liquid with a sharp, irritating odor that requires strict containment and ventilation controls. Since it is denser than water, it sinks and mixes completely, presenting unique handling challenges compared to weaker acids. The product's volatility and the generation of irritating hydrogen chloride vapors necessitate specialized storage and transfer equipment to protect personnel and infrastructure. Alliance Chemical provides this high-purity acid in multiple packaging configurations, ranging from convenient quarts to industrial-scale quantities, catering to both research facilities and bulk manufacturing plants nationwide.

Why This Grade

Selecting the ACS Reagent grade of hydrochloric acid at a 37% concentration is essential for applications where trace chemical impurities could compromise analytical results or foul sensitive catalysts. ACS Reagent grade specifications mandate strict limits on heavy metals, free chlorine, sulfate, sulfite, and ammonium, which ensures that the chemical composition remains highly consistent from lot to lot. Using a lower-grade acid, such as technical or muriatic grade, introduces uncontrolled variables like iron or organic residues. These contaminants can poison catalysts in organic synthesis, interfere with spectrophotometric analyses, or cause unwanted side reactions in high-precision manufacturing.

Furthermore, the 37% concentration represents the practical limit of hydrogen chloride gas solubility in water at ambient temperatures. This concentration is the industry standard for concentrated hydrochloric acid, offering the maximum chemical activity per unit volume. Utilizing an incorrect concentration, or a grade with wider tolerances, often leads to process failures. For instance, in laboratory titrations or standard solution preparation, slight variations in acid concentration can result in significant calculation errors, ruined batches, and lost operating time. By standardizing on our ACS Reagent grade 37% solution, facility operators and laboratory technicians can eliminate these failure modes and ensure absolute process control.

Industrial Applications

• Chemical Synthesis: Serves as a fundamental reactant in the production of organic compounds like vinyl chloride and various inorganic chlorides. When you purchase Hydrochloric Acid 37% ACS Reagent Grade, you are guaranteed high-purity inputs for chemical synthesis.
• Catalyst Regeneration: Used extensively to regenerate ion-exchange resins in water treatment systems and catalytic systems within the petrochemical sector.
• Metal Pickling: Effective for removing rust, scale, and iron oxide impurities from steel surfaces prior to galvanizing or electroplating.
• Analytical Chemistry: Employed in laboratory testing, wet chemical analysis, and pH adjustment during sensitive titration procedures across research facilities.
• Ore Processing: Applied in metallurgical processes for the extraction and refining of rare metals and precious ores from raw materials. We support diverse sectors through our dedicated industrial manufacturing solutions.

Hazmat & Shipping

Hydrochloric Acid 37% ACS Reagent Grade is highly regulated due to its corrosive and toxic nature. For transport, it is classified under DOT regulations as UN1789, Hazard Class 8, Packing Group II. The proper shipping name is Hydrochloric acid. The associated GHS signal word is Danger. Because this material is classified as regulated, it requires specialized transport protocols, certified packaging, and compliant labeling to ensure safe transit from our facilities to your delivery site. Standard ground shipments must adhere strictly to 49 CFR regulations, which govern the volume limits and containment specifications for corrosive liquids.

Safety is paramount when handling this substance. Due to the GHS hazard statement H314, which indicates that this material causes severe skin burns and eye damage, personnel must wear comprehensive personal protective equipment (PPE). This includes a chemical-resistant apron, heavy-duty neoprene or nitrile gloves, and a full-face shield. Furthermore, because of hazard statement H331, which warns that the chemical is toxic if inhaled, all operations must be conducted in a well-ventilated area or inside a certified fume hood. A respiratory protection program must be implemented if airborne exposure limits are exceeded. We recommend consulting the comprehensive safety documentation before handling this highly reactive acid.

Handling & Storage

Store Hydrochloric Acid 37% ACS Reagent Grade in a cool, dry, and well-ventilated area, preferably at temperatures between 59°F and 77°F to minimize the release of irritating fumes. Keep containers tightly closed and store them in secondary containment systems constructed of acid-resistant materials. This acid is highly incompatible with strong oxidizing agents, strong bases, metals, amines, and cyanides. Contact with metals can generate highly flammable hydrogen gas, creating an explosion hazard. Ensure all transfer equipment, piping, and valves are composed of compatible materials such as fluoropolymers, PVC, or glass-lined steel, as standard metals will suffer rapid degradation and corrosion.

Order & Documentation

Alliance Chemical ensures that all documentation is fully transparent and easily accessible for our commercial clients. We maintain rigorous quality control standards, and a Certificate of Analysis (COA) is available upon request for every batch we ship. Additionally, a comprehensive Safety Data Sheet (SDS) is provided with every order to support your facility's safety and compliance protocols. To proceed with your procurement, please use our online portal. You can Request a Quote for bulk volumes or Download the SDS to review compliance requirements.

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.