CAS 7647-01-0
Hydrochloric Acid
Hydrochloric Acid (30–33%) is a strong mineral acid used for steel pickling, ion-exchange regeneration, oil well acidising, pH control and chemical manufacture.
Hydrochloric acid is a solution of hydrogen chloride gas in water, commonly sold at 30–33% concentration. It is mostly co-produced in chlor-alkali and chlorination plants. It is a strong, fast-acting acid whose chloride salts are almost all water-soluble, which makes it ideal for cleaning and dissolving jobs.
Steel mills use it to pickle away mill scale before galvanising or cold rolling. Water treatment plants use it to regenerate cation exchange resins and to adjust pH. Oilfields pump diluted, inhibited blends down wells to dissolve carbonate rock and improve flow. It also goes into food processing, gelatin, calcium chloride and many other chemicals.
- CAS number
- 7647-01-0
- Grades / forms
- 30–33%
- Industries
- Basic Industrial Chemicals
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- MSDS in destination format
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Typical applications
- Steel pickling before galvanising and rolling
- Regeneration of ion-exchange resins
- Oil and gas well acidising (stimulation)
- pH control in water and effluent treatment
- Calcium chloride, gelatin and chemical manufacture
- Descaling of industrial equipment
Packing options
- 35 kg HDPE carboys
- 250 kg HDPE drums
- 1,000 L IBCs
- Rubber-lined ISO tanks
Storage & handling
Corrosive and fuming. Store in HDPE, FRP or rubber-lined tanks with fume scrubbing, away from metals, alkalis and hypochlorite (contact releases chlorine gas). Ships as UN 1789, Class 8.
Documentation
Certificate of Analysis, MSDS, Certificate of Origin, dangerous goods declaration where applicable, and third-party pre-shipment inspection on request.
Typical specification
- HCl content
- 30–33%
- Specific gravity
- 1.15–1.16 at 20 °C
- Iron (as Fe)
- ≤ 10 ppm
- Appearance
- Clear, colourless to pale yellow liquid
Typical values for reference. The exact specification is agreed before the order and confirmed on the Certificate of Analysis for each batch.
Hydrochloric Acid — frequently asked
Matrix acidising usually uses about 15% hydrochloric acid, prepared by diluting 30–33% acid with water and adding corrosion inhibitors, iron control agents and surfactants. Higher or lower strengths are used depending on the formation.
Yes. Hydrochloric acid ships as UN 1789, Class 8 (corrosive), Packing Group II, in UN-approved carboys, drums, IBCs or rubber-lined ISO tanks.
HDPE, FRP with a suitable resin liner, PVC and rubber-lined steel are used for hydrochloric acid. It attacks carbon steel and most stainless steels, so metal storage is unsuitable.
Yes. Chemtrade manufactures and exports Hydrochloric Acid (CAS 7647-01-0) from Surat, Gujarat, India to more than 55 countries, for customers in Basic Industrial Chemicals. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Hydrochloric Acid from Chemtrade includes a batch-specific Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
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