Why Hydrochloric Acid 31% Technical Grade
Hydrochloric Acid 31% Technical Grade provides a strong, concentrated source of HCl (CAS 7647-01-0) optimized for industrial scaling, chemical processing, and rigorous wastewater treatment protocols. As a highly water-soluble, clear, and colorless corrosive liquid, this specific 31% concentration delivers robust acidic strength while offering slightly lower fuming characteristics compared to maximum-concentration industrial acids. Technical buyers and facility managers select this grade when their operations demand rapid pH reduction, aggressive surface preparation, or bulk chemical synthesis without the stringent, trace-level purity mandates required by ACS reagent standards.
Best Applications for This Grade
- Commonly applied in municipal and industrial wastewater facilities for large-scale pH control, effectively neutralizing highly alkaline effluents and balancing water chemistry prior to environmental discharge.
- Commonly applied in carbon steel pickling lines and metal fabrication shops to chemically strip rust, iron oxide scale, and surface impurities prior to galvanizing, extrusion, or advanced rolling operations.
- Acts as a critical polar solvent compatible reactant and primary acidifying agent in the industrial production of organic and inorganic compounds, including metal chlorides and chemical intermediates.
- Commonly applied in commercial boiler systems, cooling towers, and heavy industrial heat exchangers to aggressively dissolve hard water scale, calcium carbonate deposits, and tough mineral build-up.
- Utilized as a foundational acid in non-trace analytical methods, general process titrations, and routine laboratory workflows where technical grade specifications fully support the designated research outcomes.
When to Choose a Different Grade
- If operations require maximum industrial acidic strength for the most aggressive metal etching, deep rust removal, or specific high-yield synthesis pathways, select Hydrochloric Acid 37% (HCL 37%) - Technical Grade.
- If trace element analysis, highly sensitive quantitative laboratory methods, or strict analytical testing mandates dictate certified purity limits, choose Hydrochloric Acid 37% ACS Reagent Grade.
- If the facility needs a moderate acid concentration to minimize fuming and handling complexities while still performing routine surface preparation or intermediate pH adjustments, select Hydrochloric Acid 15% Technical Grade.
- If the process requires a mild, pre-diluted acidic solution strictly for minor pH control, light industrial descaling, or minimizing onsite dilution procedures, choose Hydrochloric Acid 5% Technical Grade.
| Molecular Weight |
36.46 |
| Formula |
HCl |
| Assay |
30-32% |
| Grade |
Technical Grade |
| Flash Point |
Not applicable |
| Form |
Liquid |
| Solubility |
Completely soluble in water |
| Appearance |
Clear, colorless liquid |
| Melting Point |
-74 |
| Boiling Point |
110 |
| Specific Gravity |
1.18 |
| Industry |
Water Treatment, Industrial Manufacturing, Chemical Manufacturing, Research Laboratory, Food Industry |