Hydrofluorosilicic Acid 23% ACS

Product Overview

Hydrofluorosilicic Acid 23% ACS Grade is a high-purity, aqueous solution of hexafluorosilicic acid. Also recognized under its IUPAC name hexafluorosilicon(2-);hydron, this chemical is an important reagent in diverse industrial processes where strict quality control is mandatory. Alliance Chemical supplies this solution in multiple packaging sizes to meet the requirements of analytical laboratories, manufacturing plants, and municipal treatment facilities across North America. As a leading supplier in our catalog of Acids, we maintain rigorous supply chain control to ensure the integrity of this material from our facility directly to your site.

Physically, Hydrofluorosilicic Acid appears as a colorless fuming liquid with a penetrating, sour, and pungent odor. This liquid is denser than water and has a melting point of -4 °F and a boiling point of approximately 212 °F at 760 mmHg. It is highly corrosive to both metals and organic tissue, necessitating strict administrative controls and robust protective systems during transfer. Our team ensures that each shipment aligns with standard commercial quality frameworks, providing a consistent 23% concentration designed specifically for critical process chemistry.

Why This Grade

Selecting the ACS Grade of Hydrofluorosilicic Acid guarantees a level of purity that meets the specifications of the American Chemical Society. This strict standard caps trace metal impurities and other potential contaminants that could disrupt sensitive chemical reactions. Utilizing an ACS-grade reagent ensures that analytical results remain reproducible and that final products do not suffer from trace elemental interference.

Using a lower or unverified grade at a non-standard concentration can lead to significant industrial failure modes. For example, excess trace metal contaminants can poison catalytic surfaces, interfere with pH-dependent reactions, or cause unwanted precipitates in industrial systems. A precise 23% concentration is required to maintain stoichiometric accuracy in formulations. Deviating from this target concentration can cause dosing errors, requiring expensive recalibrations of automated chemical injection equipment.

Industrial Applications

• In industrial water treatment systems, Hydrofluorosilicic Acid is utilized for precise water fluoridation protocols to maintain controlled fluoride levels.
• In the ceramics and construction sectors, this acid acts as an effective hardening agent for cement and ceramic materials.
• Wood preservation industries utilize the compound as an active component in formulations designed to protect timber from structural degradation.
• For metal finishing workflows, it is employed as a surface treatment agent to clean and etch metal surfaces before coating.
• In commercial laboratory environments, ACS Grade Hydrofluorosilicic Acid serves as an analytical reagent for synthesizing fluorinated silicon derivatives.

Hazmat & Shipping

Hydrofluorosilicic Acid 23% ACS is classified as a hazardous material for transport. It is regulated and must be shipped under the proper shipping name Fluorosilicic acid as UN1778, Hazard Class 8, Packing Group II. The signal word is DANGER and the product is designated with the hazard statement H314, indicating that it causes severe skin burns and eye damage. As a corrosive liquid, all shipments are subject to strict DOT regulations and must be handled by certified hazmat carriers to ensure safety during transit.

Due to the severe corrosive nature of this material, personnel must wear comprehensive personal protective equipment (PPE) during handling. This includes chemical-resistant gloves, protective clothing, and eye protection as indicated by the precautionary statements: P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501. Never handle this product without adequate ventilation and emergency eyewash stations nearby.

Handling & Storage

Store Hydrofluorosilicic Acid in a cool, dry, well-ventilated area away from direct sunlight. The recommended storage temperature should be maintained above its melting point of -4 °F to prevent crystallization, typically between 50 °F and 85 °F. This acid is highly corrosive to glass and many metals; therefore, it must be stored in compatible plastic containers such as high-density polyethylene (HDPE) or fluoropolymer-lined drums. Keep the containers tightly sealed and separate from incompatible substances, including strong bases, glass, stoneware, and oxidizing agents, which can react violently or degrade the containment vessels.

Order & Documentation

We streamline the procurement process for all your industrial chemical needs. To support your quality management and regulatory compliance workflows, we provide comprehensive documentation for every shipment we dispatch. A Safety Data Sheet (SDS) is provided with every order to ensure your facility maintains compliance with local safety standards. For specific batch verification, a Certificate of Analysis (COA) is available upon request. To proceed with your procurement, you may Request a Quote or Download the SDS for your safety records.

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.