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Hydrochloric acid

CAS number 7647-01-0


IUPAC name Hydrochloric acid Other names Muriatic acid, Spirit(s) of Salt, Chlorane

Identifiers
p[
CAS number [7647-01-0]
EC number 231-595-7
RTECS number MW4025000
ChemSpider ID 307

Properties

Molecular formula HCl in water (H2O)
Molar weight : 36.46 g/mol (HCl)
Appearance Clear colorless to light-yellow liquid
Density 1.18g/cm3
Melting point −27.32 °C (247 K) 38% solution.
Boiling point 110 °C (383 K), 20.2% solution; 48 °C (321 K), 38% solution.
Solubility in water Miscible.
Acidity (pKa) −8.0
Viscosity 1.9 mPa·s at 25 °C, 31.5% solution
Hazards
MSDS External MSDS
EU Index 017-002-01-X
EU classification Corrosive (C)
R-phrases R34, R37
S-phrases (S1/2), S26, S45

Hydrochloric acid is the solution of hydrogen chloride (HCl) in water. It is a highly corrosive, strong mineral acid and has major industrial uses. It is found naturally in gastric acid.

Historically called muriatic acid or spirits of salt, hydrochloric acid was produced from vitriol and common salt. The alchemist Jabir ibn Hayyan first formally described it in the eighth century. During the Middle Ages, it was used by alchemists in the quest for the philosopher's stone, and later by European scientists including Glauber, Priestley, and Davy in their scientific research.

Hydrochloric Acid is a highly reactive chemical and it forms metal chlorides, most of which are soluble. This leads to its wide industrial use in metal cleaning applications.

* Cleaning and pickling of metals
* Acidizing of oil wells
* Processing of textiles
* Food processing
* Manufacture of chlorine and chlorides
* Manufacture of ossein/gelatine.
* Manufacture of chloro-organic compounds and polymers such as PVC, chlorinated rubber etc.

Quality
Hydrochloric Acid is manufactured in technical collaboration with UHDE GmbH of Germany, using graphite furnaces of Lecarbone – Lorraine, France. This gives a products of very high purity and water white appearance, as it is free from iron, a common impurity.

Hydrochloric Acid is a highly reactive chemical and it forms metal chlorides, most of which are soluble. This leads to its wide industrial use in metal cleaning applications.

* Cleaning and pickling of metals
* Acidizing of oil wells
* Processing of textiles
* Food processing
* Manufacture of chlorine and chlorides
* Manufacture of ossein/gelatine.
* Manufacture of chloro-organic compounds and polymers such as PVC, chlorinated rubber etc.

Quality
Hydrochloric Acid is manufactured in technical collaboration with UHDE GmbH of Germany, using graphite furnaces of Lecarbone – Lorraine, France. This gives a products of very high purity and water white appearance, as it is free from iron, a common impurity.Packaging
Modi HCI is supplied in rubber lined lorry tanker

1. HCI reacts with most metals and cannot be stored in metal containers
2. It should not be stored with or near oxidizing agents, particularly nitric acid and chlorates
3. It should be stored in a cool, well ventilated place.
4. All electrical wiring and fixtures in and around the storage area should be protected with acid vapour proof casings.
5. Storage tanks should be provided with adequate vents.

Handling and Storage

Store in a cool, dry, ventilated storage area with acid resistant floors and good drainage. Protect from physical damage. Keep out of direct sunlight and away from heat, water, and incompatible materials. Do not wash out container and use it for other purposes. When diluting, the acid should always be added slowly to water and in small amounts. Never use hot water and never add water to the acid. Water added to acid can cause uncontrolled boiling and splashing. When opening metal containers, use non-sparking tools because of the possibility of hydrogen gas being present. Containers of this material may be hazardous when empty since they retain product residues (vapors, liquid); observe all warnings and precautions listed for the product.

 

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