Hydrochloric acid
Hydrochloric acid (CAS: 7647-01-0, Formula: HCl) is a strong, monoprotic, mineral acid with a molecular weight of 36.46 g/mol. It is a colourless solution with a pungent odour, widely recognised for its corrosive nature. ACS reagent grade Hydrochloric acid is essential in various laboratory applications, including chemical synthesis, analytical titrations, and pH adjustment.
Chemical Synthesis
Hydrochloric acid serves as a vital reagent in the synthesis of numerous organic and inorganic compounds. It is commonly used for deprotection reactions and in the preparation of acid chlorides.
Analytical Chemistry
As an ACS reagent grade acid, it is frequently employed in titrations for determining the concentration of bases and in various wet chemical analyses. Its precise concentration is crucial for accurate results.
pH Control
Hydrochloric acid is widely used for adjusting and maintaining pH levels in industrial processes and laboratory settings. Its strong acidic nature allows for rapid and effective pH modification.
Metal Treatment
It is used in metal cleaning and pickling processes to remove rust and scale from steel and other metals before further processing or coating.
| Molecular weight | 36.46 |
|---|---|
| Empirical formula | HCl |
| Assay | ≥37% (T) |
| Grade | ACS reagent |
| Colour | APHA: ≤10, free from suspended matter or sediment |
| Boiling point | >100 °C(lit.) |
| Density | 1.18 g/mL at 20 °C1.2 g/mL at 25 °C(lit.) |
| Melting point | −114 °C(lit.) |
| Concentration | 0.02 M1/50 N |
| Vapour pressure | 3.23 psi (21.1 °C)7.93 psi (37.7 °C) |
| Vapour density | 1.3 (vs air) |
| Storage temperature | 2-8°C |
| Impurities tested | ≤0.00005% free chlorine (Cl) |
Hazard statements
- H290May be corrosive to metals
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 1789 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34-37 |
| Safety statements (S) | 26-45 |
| Anion traces | bromide (Br-): ≤50 mg/kgphosphate (PO43-): ≤0.5 mg/kgsulfate (SO42-): ≤1 mg/kgsulfite (SO32-): ≤1 mg/kg |
| Ignition residue | ≤0.0005% (as SO4) |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Factor | 1.000 ±0.2% |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Hydrochloric acid used for?
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Hydrochloric acid is used in chemical synthesis, analytical titrations, pH control, and metal treatment processes.
What are the CAS number and formula for Hydrochloric acid?
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The CAS number is 7647-01-0 and the chemical formula is HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies ACS reagent grade Hydrochloric acid with an assay of ≥37%. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the specifications.
How should Hydrochloric acid be handled safely?
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Hydrochloric acid is corrosive and can cause severe skin burns and eye damage (H314) and may cause respiratory irritation (H335). It is vital to use appropriate personal protective equipment, including gloves, goggles, and a full-face respirator, and to handle it in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive guidance.
Is Hydrochloric acid a controlled substance?
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The provided data does not indicate that Hydrochloric acid is a controlled substance.
How is Hydrochloric acid packed and exported?
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Hydrochloric acid is packed according to UN 1789, PG II regulations for safe transport and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for Hydrochloric acid?
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Please contact our sales team through the website to request a sample or obtain a quotation for Hydrochloric acid.
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