Acids & Bases
Hydrochloric acid (30721)
puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, ≥37%, APHA: 10, assay min. 37%
Overview
Hydrochloric acid is a corrosive, strong mineral acid with many industrial uses. One of the most important applications of hydrochloric acid is in the pickling of steel, to remove rust or iron oxide scale from iron or steel before subsequent processing. Another major use of hydrochloric acid is in the production of organic compounds, such as vinyl chloride and dichloroethane for PVC. Other organic compounds produced with hydrochloric acid include bisphenol A for polycarbonate, activated carbon, and ascorbic acid, as well as numerous pharmaceutical products. Other inorganic compounds produced with hydrochloric acid include road application salt calcium chloride, nickel(II) chloride for electroplating, and zinc chloride for the galvanizing industry and battery production.
Specifications
General Information
- UNSPSC Code
- 12352301
- Linear Formula
- HCl
- Molar Mass
- 36.46 g/mol
- CAS Number
- 7647-01-0
Physical Properties
- Odor
- Stinging
- pH
- > 0.1 (20 °C)
- Color
- Colorless
- Boiling Point/Range
- 42 °C (1,013 hPa)
- Physical Form
- Crystalline powder
- Density
- 1.190 g/cm3 (20 °C)
- Vapor Pressure
- 965 hPa (50 °C) hectopascal
- Melting Point/Range
- -35 °C
Safety Information
- Thermal Decomposition
- Fire or intense heat may cause violent rupture of packages.
- Flammability
- Not applicable
- Incompatible Materials
- Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
- Corrosivity
- Corrosive to metals
- Chemical Stability
- Stable under normal conditions.
International Transportation
- Harmonized System Code
- 28061000
- Chemical Class
- 8
- UN Number
- 1789
- Packing Group
- II
General Information
- UNSPSC Code
- 12352301
- Linear Formula
- HCl
- Molar Mass
- 36.46 g/mol
- CAS Number
- 7647-01-0
Physical Properties
- Odor
- Stinging
- pH
- > 0.1 (20 °C)
- Color
- Colorless
- Boiling Point/Range
- 42 °C (1,013 hPa)
- Physical Form
- Crystalline powder
- Density
- 1.190 g/cm3 (20 °C)
- Vapor Pressure
- 965 hPa (50 °C) hectopascal
- Melting Point/Range
- -35 °C
Safety Information
- Thermal Decomposition
- Fire or intense heat may cause violent rupture of packages.
- Flammability
- Not applicable
- Incompatible Materials
- Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
- Corrosivity
- Corrosive to metals
- Chemical Stability
- Stable under normal conditions.
International Transportation
- Harmonized System Code
- 28061000
- Chemical Class
- 8
- UN Number
- 1789
- Packing Group
- II
- UNSPSC Code : 12352301
- Linear Formula : HCl
- Molar Mass : 36.46 g/mol
- CAS Number : 7647-01-0
- Odor : Stinging
- pH : > 0.1 (20 °C)
- Color : Colorless
- Boiling Point/Range : 42 °C (1,013 hPa)
- Physical Form : Crystalline powder
- Density : 1.190 g/cm3 (20 °C)
- Vapor Pressure : 965 hPa (50 °C) hectopascal
- Melting Point/Range : -35 °C
- Thermal Decomposition : Fire or intense heat may cause violent rupture of packages.
- Flammability : Not applicable
- Incompatible Materials : Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
- Corrosivity : Corrosive to metals
- Chemical Stability : Stable under normal conditions.
- Harmonized System Code : 28061000
- Chemical Class : 8
- UN Number : 1789
- Packing Group : II
Property
Value
assay
37 - 38.0 %
density (20°C)
Min. 1.18 g/ml
residue on ignition (SO4)
Max. 5 ppm
non-volatile matter
Max. 0.005 %
ammonium (NH4)
Max. 1 ppm
silver (Ag)
Max. 0.01 ppm
aluminium (Al)
Max. 0.000005 %
arsenic (As)
Max. 0.01 ppm
barium (Ba)
Max. 0.000002 %
beryllium (Be)
Max. 0.000002 %
bismuth (Bi)
Max. 0.1 ppm
calcium (Ca)
Max. 0.00005 %
cadmium (Cd)
Max. 0.01 ppm
cobalt (Co)
Max. 0.000001 %
chromium (Cr)
Max. 0.000002 %
copper (Cu)
Max. 0.02 ppm
iron (Fe)
Max. 0.2 ppm
germanium (Ge)
Max. 0.000005 %
mercury (Hg)
Max. 0.01 ppm
potassium (K)
Max. 0.00001 %
lithium (Li)
Max. 0.000001 %
magnesium (Mg)
Max. 0.00001 %
manganese (Mn)
Max. 0.000001 %
molybdenum (Mo)
Max. 0.02 ppm
sodium (Na)
Max. 0.00005 %
nickel (Ni)
Max. 0.000002 %
lead (Pb)
Max. 0.02 ppm
strontium (Sr)
Max. 0.000001 %
titanium (Ti)
Max. 0.00001 %
thallium (Tl)
Max. 0.000005 %
vanadium (V)
Max. 0.000001 %
zinc (Zn)
Max. 0.000005 %
zirconium (Zr)
Max. 0.00001 %
heavy metals (ICP) ACS
Max. 1 ppm
free chlorine (Cl)
Max. 0.5 ppm
bromide (Br)
Max. 0.005 %
phosphate (PO4)
Max. 0.00005 %
sulfate (SO4)
Max. 1 ppm
sulfite (SO3)
Max. 1 ppm
appearance of the substance
complying
APHA
Max. 10
residual solvents
complying
