ACID HCL 32% - 35%

Hydrochloric Acid 32% - 35% is an industrial chemical widely used in the field of swimming pool water treatment. In terms of appearance, this chemical exists in liquid form, has a light yellow color, and a pungent odor. To learn how to safely use and store HCl acid 32% - 35%, follow the details below with Dong A Chemical

Overview of HCl Acid 32% - 35%

Acid HCl32% - 35% is a strong inorganic acid containing 32% - 35% HCl. Under standard conditions (temperature and pressure), this acid is transparent, colorless, or light yellow, slightly viscous, and can emit fumes. It is heavier than water and refracts light more than water.

Like other acids, HCl acid 32% - 35% has the following chemical properties:

• Reacts with metals, except for those less reactive than hydrogen, such as Cu, Au, Pt, etc.
  Fe + 2HCl → FeCl2 + H2

• Reacts with basic oxides to produce chloride salts and water.
  Zn + 2HCl → ZnCl2 + H2O

• Reacts with bases, yielding chloride salts and water.
  NaOH + HCl → NaCl + H2O

• Reacts with salts that have a weaker anionic base, producing new salts and new acids.
  2HCl + CaCO3 → CaCl2 + CO2 + H2O

• Exhibits reducing properties when reacting with certain compounds like concentrated KMnO4, KClO3, MnO2, and releases Cl2 gas.
  2KMnO4 (concentrated) + 16HCl → 2KCl + 2MnCl2 + 5Cl2 + 8 H2O
  4HCl + MnO2 → MnCl2 + Cl2 + 2H2O

Quality indicators of Dong A’s HCl acid 32% - 35%

What is HCl acid 32% - 35% used for?

Dong A Chemical is a quality supplier of HCl

In reality, HCl acid 32% - 35% is used in many fields, particularly in industrial production and swimming pool water treatment. Below are the specific applications of this acid:

Steel rust removal

HCl acid is used to remove iron oxides (rust) from steel before it is used for other purposes, such as electroplating, rolling, or other techniques.
6HCl + Fe2O3 + Fe → 3FeCl2 + 3H2O
After use, the acid can be reused, but its rust removal effectiveness will be reduced. The reused solution is called iron(II) chloride solution and contains a high concentration of heavy metals.

Production of organic compounds

HCl acid is used to produce organic compounds such as dichloroethane and vinyl chloride. These compounds are then used to manufacture PVC plastics.
Additionally, HCl is used to produce other organic compounds like bisphenol A, ascorbic acid, and some pharmaceutical products.
4HCl + 2CH2=CH2 + O2 → 2ClCH2CH2Cl + 2H2O
HCl + Wood + Heat → Activated Carbon

Inorganic compound production

Many inorganic compounds can be produced from HCl through acid-base reactions, such as water treatment chemicals like iron(III) chloride (FeCl3) and polyaluminium chloride (PAC). Both PAC and FeCl3 are used as coagulants in water and wastewater treatment processes.
6HCl + Fe2O3 → 2FeCl3 + 3H2O
In electroplating and battery manufacturing, HCl is also used to produce substances like nickel(II) chloride, calcium chloride for electroplating, and zinc chloride.
2HCl + CaCO3 → CaCl2 + H2O + CO2
2HCl + Zn(s)→ ZnCl2 + H2(g)

pH control and neutralization

HCl acid is acidic and its acidity is used to adjust the alkalinity of a solution.
HCl + OH− → H2O + Cl−
In industries with high purity requirements such as food processing, drinking water, and pharmaceuticals, high-quality HCl is used to adjust the pH of the water to be treated.

Swimming pool water treatment

If the pH of swimming pool water is too high, the chlorine will not function properly, which may cause scaling, making the water cloudy and discolored. Adding HCl to alkaline water lowers the alkalinity and increases acidity, keeping the water clean and scale-free. However, dosage must be balanced to keep the chlorine concentration within a suitable range.

Ion exchange Resin Regeneration

High-quality HCl acid is used to regenerate ion exchange resin beads, which involves washing cations from the resin. The purpose is to remove ions such as Na+ and Ca2+ from the water solution, thereby producing demineralized water. Specifically:

Na+ is replaced by H+ ions.

Ca2+ is replaced by 2 H+ ions.
This application is used in many chemical industries, pure drinking water production, and some food industries.

Guidelines for safe storage and transport of HCl Acid 32% - 35%

Safe storage and transport of HCl acid should adhere to the following guidelines:

Storage of HCl Acid

• Store HCl containers outdoors. If indoors, use acid-resistant paint and plaster, and the floor should be asphalt-coated or treated with sodium silicate concrete to prevent corrosion from acid fumes. Additionally, the storage area should have a drainage system for chemical spill emergencies.

• Do not store chemicals in basements.

• The storage area must be well-ventilated to prevent health risks from HCl fumes and prevent corrosion of metal structures due to hydrogen gas.

• Use sealed, corrosion-resistant electrical equipment. For wiring, use plastic-covered cables or gas-tight ducts coated with acid-resistant paint or plastic pipes.

• Keep away from oxidizing agents (especially chlorates and nitric acid), flammable substances, cyanides, and sulfides.

• Avoid direct sunlight and heat sources. Keep storage away from passageways and areas at risk of spills.

• Ensure chemical containers are mechanically strong, corrosion-resistant, and leak-proof. Containers should be sealed tightly and have suitable space for expansion (at least 5% of volume) when full.

• Regularly check the acid level in storage tanks to prevent overflow. Tanks should have a vent connected to a safety management unit.

Transport of HCl Acid 32% - 35%

• When transporting chemicals by container, seal the container tightly to prevent leaks. The transporter should wear protective gear such as goggles, gloves, boots, or suitable rubber clothing.

• When transporting multiple types of chemicals, do not place alkaline chemicals or metals near HCl, and avoid stacking containers on organic chemical containers.

• When transporting HCl 32% - 35% in acid-resistant containers (PVC), thoroughly inspect the containers before use. Use trolleys to move acid-resistant containers; do not use chains, pulleys, cranes, or temporary lifts.

• When transporting chemicals by tanker, ensure each tanker has documentation describing the name, composition, first aid measures, and necessary protective equipment. The driver must ensure the tanker's hatches or valves are closed to avoid HCl leakage.

Where to buy high-quality, affordable industrial HCl acid 32% - 35%?

Dong A JSC  is one of the reputable suppliers of high-quality industrial HCl acid 32% - 35% with competitive prices in the market. At Dong A, customers can purchase HCl chemicals in large quantities and concentrations suitable for their needs. To avoid buying substandard products, contact Dong A right away to get the best price quote for HCl acid 32% - 35%.