Hydrochloric Acid
ELRASATM – ELRASA – HCA35
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Hydrochloric Acid is a strong mineral acid supplied as a clear to pale-yellow aqueous solution, typically at 30–35% concentration. It functions as a strong acid, pickling agent, pH regulator, raw…
CAS Number
7647-01-0
HS Code
28.06.10.00
INCI Name
Hydrochloric Acid
Molecular Formula
HCl
Hydrochloric Acid
ELRASATM – ELRASA – HCA35
Hydrochloric Acid is a strong mineral acid supplied as a clear to pale-yellow aqueous solution, typically at 30–35% concentration. It functions as a strong acid, pickling agent, pH regulator, raw material across steel & metals, chemicals, oil & gas, water treatment, food,…
CAS Number
7647-01-0
INCI Name
Hydrochloric Acid
HS Code
28.06.10.00
Molecular Formula
HCl
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Need pricing? Request a quote for this product and we'll get back to you shortly.
Speed Up Your Sample Testing Process
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Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Appearance | Colourless clear liquid |
| Odor | Pungent, irritating odor. |
| Molecular Weight | 36.46 g/mol. |
| Density / Specific Gravity | 1.159 g/cm³ |
| Ph (Aqueous Solution) | <1.0. |
| Assay / Purity | 35% |
Chemical Properties
| Property | Specification |
|---|---|
| Pka | -5.9. |
| Ionic Nature | Strong acid, completely ionized in aqueous solution. |
| Incompatibilities | Bases, amines, metals, oxidizing agents (e.g., permanganates, chlorates), metal acetylides, hexalithium disilicide, acetic anhydride, chlorosulfonic acid, oleum, sulfuric acid, vinyl acetate. |
| Hazardous Reactions / Decomposition Products | Contact with metals may evolve flammable hydrogen gas. Decomposes under heat to form hydrogen chloride and chlorine gas. |
Thermal Properties
| Property | Specification |
|---|---|
| Melting Point | -43 °C |
| Boiling Point | 84 °C |
| Flash Point | Non-flammable. |
| Autoignition Temperature | Not flammable. |
| Thermal Stability | High thermal stability. |
Dosing Guidelines
A. Dosing by Application
| Application | Recommended / Max Dosage |
|---|---|
| Steel Pickling (Hot-rolled steel) | 15 - 20% |
| Steel Pickling (Cold-rolled steel) | 8 - 12% |
| Steel Pickling (General) | 3 - 15% |
| Oil Well Acidizing | 15% |
| Ion Exchange Resin Regeneration | 4 - 8% |
| pH Control (Municipal Water) | 5 - 10% |
| Food Processing (e.g., corn syrup, gelatin) | 3 - 10% |
| RO Membrane Cleaning | 2 - 3% |
About Hydrochloric Acid
Hydrochloric acid (HCl) is a strong, versatile mineral acid supplied as an aqueous solution, most commonly at 30–35%. It is one of the most widely used acids in industry, essential for steel pickling, chemical manufacture, oil-well acidising, water treatment, pH control, food processing (as E507) and the production of chlorides and many other chemicals. Much of the world's hydrochloric acid is recovered as a co-product of other chemical processes (such as the chlorination of organics), making it both widely available and cost-effective. It is graded by concentration and purity technical grade for industrial use and food grade (E507) for food and pharmaceutical applications. Industrial buyers sourcing Hydrochloric Acid in bulk also track hydrochloric acid pricing closely, since it feeds directly into their downstream costs which is why working with an established hydrochloric acid supplier and distributor like Elchemy matters.
- Chemical Processing: Essential for producing various chemicals like vinyl chloride and fertilizers.
- Metal Cleaning: Efficiently removes rust and scale from metal surfaces.
- Water Treatment: Neutralizes alkaline substances and controls pH in water treatment.
- Industrial Cleaning: Used in cleaning and descaling industrial equipment.
- High Purity: Provides consistent and reliable results in manufacturing processes.
- Safe Storage: Packaged for secure handling and long-term storage.
About Hydrochloric Acid
Hydrochloric acid (HCl) is a strong, versatile mineral acid supplied as an aqueous solution, most commonly at 30–35%. It is one of the most widely used acids in industry, essential for steel pickling, chemical manufacture, oil-well acidising, water treatment, pH control, food processing (as E507) and the production of chlorides and many other chemicals. Much of the world's hydrochloric acid is recovered as a co-product of other chemical processes (such as the chlorination of organics), making it both widely available and cost-effective. It is graded by concentration and purity technical grade for industrial use and food grade (E507) for food and pharmaceutical applications. Industrial buyers sourcing Hydrochloric Acid in bulk also track hydrochloric acid pricing closely, since it feeds directly into their downstream costs which is why working with an established hydrochloric acid supplier and distributor like Elchemy matters.
- Chemical Processing: Essential for producing various chemicals like vinyl chloride and fertilizers.
- Metal Cleaning: Efficiently removes rust and scale from metal surfaces.
- Water Treatment: Neutralizes alkaline substances and controls pH in water treatment.
- Industrial Cleaning: Used in cleaning and descaling industrial equipment.
- High Purity: Provides consistent and reliable results in manufacturing processes.
- Safe Storage: Packaged for secure handling and long-term storage.
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| United States | - | Generally Recognized as Safe (GRAS) as a buffer and neutralizing agent in food. Not specifically restricted in cosmetics for pH adjustment. It is listed on the TSCA inventory. | For food use, compliance with FDA 21 CFR 182.1057 is required. For industrial use, compliance with TSCA is necessary. |
| European Union | - | Used as a buffering/pH adjuster in cosmetics. Not listed in the annexes of prohibited or restricted substances in Regulation (EC) No 1223/2009. | Must be registered under REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) for manufacture or import >1 tonne/year. |
| Canada | - | Permitted as a pH adjusting agent in unstandardized foods. In cosmetics, it is not on the Cosmetic Ingredient Hotlist. It is listed on the Domestic Substances List (DSL). | For food use, compliance with Health Canada's List of Permitted pH Adjusting Agents is required. For industrial use, compliance with DSL is necessary. |
| India | - | Permitted as a food additive (acidifying agent) under the Food Safety and Standards Regulations. | FSSAI approval for use in food products. |
| Japan | - | Used as a pH adjuster in cosmetics. It is listed on the ENCS (Existing and New Chemical Substances) inventory. It is designated as a "Deleterious Substance" under the Poisonous and Deleterious Substances Control Act, requiring strict handling. | Compliance with the Chemical Substances Control Law (CSCL) and the Industrial Safety and Health Act (ISHL) is required. |
| Australia | - | Listed on the Australian Inventory of Industrial Chemicals (AIIC). Not specifically restricted for use in cosmetics as a pH adjuster. | Compliance with AIIC listing requirements. |
| China | - | Permitted for use in cosmetics as a pH regulator. It is listed on the Inventory of Existing Chemical Substances in China (IECSC). It is also classified as a precursor chemical, which may require licenses for production and trade. | Compliance with IECSC listing. May require specific licenses for handling as a precursor chemical. |
| Republic of Korea | - | Used as a pH adjuster in cosmetics. It is listed on the Korean Existing Chemicals Inventory (KECI). | Compliance with K-REACH and the Act on the Safety of Consumer Chemical Products and Biocides (K-BPR). |
| ASEAN | - | Not listed on the Annexes of prohibited or restricted substances in the ASEAN Cosmetic Directive for its function as a pH adjuster. | - |
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