Specification
| Product Name | Hydrochloric acid |
|---|---|
| Other Names | HCl |
| CAS No. | 7647-01-0 |
| MF | HCl |
| Molecular weight | 36.46 |
| Purity | 99.5% |
| Appearance | colorless clear liquid |
| Density | 1.19 g/cm³ |
| Boiling point | 108.6 °C |
| Solubility | 172.5 °C |
| Saturated vapor pressure | -27.32 °C |
Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.
Hazard classification
- H314 Causes severe skin burns and eye damage
- H335 May cause respiratory irritation
Precautionary statements (3)
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304 IF INHALED
European Chemicals Agency. "Hydrochloric acid, Index No. 017-002-01-X." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress. Helsinki: European Chemicals Agency. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp
Substance identity verified against the registry entry on 2026-09-02.
Packaging and shipping
Hydrochloric Acid is the aqueous solution of hydrogen chloride (HCl) gas. It is a colorless to slightly yellow, highly irritating-smelling transparent liquid. As one of the three major inorganic strong acids, hydrochloric acid is one of the most widely used and consumed basic chemical raw materials in modern industry. It is not only an important by-product of the chlor-alkali industry, but also an indispensable processing aid and reaction medium for many industries such as steel, chemical, food, medicine, and electronics.
Product Description
Anhui Eapearl Chemical Co., Ltd., as a professional chemical supplier in China, strictly adheres to all national laws and regulations regarding the management of hazardous chemicals, including the “Regulations on the Safety Management of Hazardous Chemicals”. We are committed to providing customers with high-quality, stable and reliable hydrochloric acid products, emphasizing their core value as a basic inorganic strong acid and a key industrial raw material. At the same time, safety, compliance and environmental protection are placed at the top of our operational priorities.
Product Introduction
The core value of hydrochloric acid lies in its strong acidity, high reactivity, low price, and easy availability.
Steel and metal processing (traditional core application):
Acid washing for rust removal: Used to remove the oxide layer (rust) on the surface of steel, it is a key process in the production of hot-rolled steel plates, wire rods, and tubes.
Metal surface treatment: Before electroplating, enameling, and other processes, it is used to activate the metal surface.
Chemical production and inorganic salt manufacturing (the largest usage field):
By-product of chlor-alkali industry: It is the main co-product in the production of caustic soda and chlorine by ion-exchange membrane method or diaphragm method.
Inorganic chlorides production: Used to produce various inorganic salts such as ferric chloride, aluminum chloride, calcium chloride, and zinc chloride.
Organic synthesis: As a catalyst or reactant, it is used to produce vinyl chloride, chloroform, pharmaceutical intermediates, pesticides, dyes, etc.
Ion exchange resin regeneration: Widely used in boiler water treatment and pure water preparation systems for the regeneration of cation exchange resins.
Food and pharmaceutical industry:
Food processing: As a food additive (acid regulator), it is used in starch hydrolysis (producing glucose, fructose syrup), monosodium glutamate (glutamic acid sodium) production, soy sauce brewing, etc., and must comply with GB 1886.9-2016 “Food Safety National Standards – Food Additives – Hydrochloric Acid”.
Pharmaceutical manufacturing: Used to adjust pH value, synthesize various drugs (such as vitamins, antibiotics), and as biochemical reagents.
Electronic and semiconductor industry (high-growth field):
Wafer cleaning and etching: Electronic-grade high-purity hydrochloric acid is a key chemical in semiconductor manufacturing for cleaning silicon wafers, removing oxides and metal impurities, with extremely low requirements for metal ion content (ppb level).
Photovoltaic industry: Used in the cleaning and purification processes of polysilicon and monocrystalline silicon production.
Water treatment and environmental protection:
pH regulator: Used to adjust the pH value of industrial wastewater and municipal sewage to meet discharge or subsequent treatment requirements. Flue gas desulfurization: In some wet desulfurization processes, it is used as an absorbent.
Delivery&Payment method
Frequently asked
In what packaging is Hydrochloric acid shipped?
Standard formats are Drum (180 kg), IBC Drum (1127 kg), ISO tank (20ft) (24–26 m³), ISO tank (40ft) (48–50 m³). Other packaging can be arranged for full-container orders.
Is a safety data sheet available for Hydrochloric acid?
Yes, on request. Safety data sheets are issued per grade and destination market; state the country of import in your inquiry.
What purity do you supply?
The standard grade is 99.5%. Tighter specifications are confirmed against the production batch before shipment.
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