Perchloric acid

CAS #: 7601-90-3

Chemical Formula: HClO4

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Catalogue Number100519
Product Information
GradeACS,ISO,Reag. Ph Eur
HS Code2811 19 30
Quality LevelMQ300
Physicochemical Information
Boiling point198.7 °C (1013 hPa)
Density1.68 g/cm3 (20 °C)
Melting Point-18 °C
Safety Information according to GHS
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Hazard Statement(s)H271: May cause fire or explosion; strong oxidizer.
H290: May be corrosive to metals.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H373: May cause damage to organs through prolonged or repeated exposure.
Precautionary Statement(s)P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P314: Get medical advice/ attention if you feel unwell.
Signal WordDanger
Storage class5.1A Strongly oxidizing hazardous materials
WGKWGK 1 slightly hazardous to water
Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
Safety Information
Categories of dangeroxidizing, corrosive
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Transport Information
Declaration (railroad and road) ADR, RIDUN 1873 , 5.1 (8), I
Declaration (transport by air) IATA-DGRUN 1873 , 5.1 (8), I
Declaration (transport by sea) IMDG-CodeUN 1873 , 5.1 (8), I, Segregation Group: 1 (Acids)
Assay (acidimetric)70.0 – 72.0 %
Identitypasses test
Density (d 20/20)approx. 1.7
Color≤ 10 Hazen
Chlorate (ClO₃)≤ 10 ppm
Chloride (Cl)≤ 3 ppm
Free chlorine (Cl)≤ 0.5 ppm
Phosphate and Silicate (as SiO₂)≤ 5 ppm
Sulfate (SO₄)≤ 10 ppm
Total nitrogen (N)≤ 10 ppm
Heavy metals (as Pb)≤ 1 ppm
Ag (Silver)≤ 0.1 ppm
Al (Aluminium)≤ 0.05 ppm
As (Arsenic)≤ 0.05 ppm
Ba (Barium)≤ 0.02 ppm
Be (Beryllium)≤ 0.02 ppm
Bi (Bismuth)≤ 0.1 ppm
Ca (Calcium)≤ 0.5 ppm
Cd (Cadmium)≤ 0.05 ppm
Co (Cobalt)≤ 0.05 ppm
Cu (Copper)≤ 0.1 ppm
Fe (Iron)≤ 1.0 ppm
Ge (Germanium)≤ 0.05 ppm
K (Potassium)≤ 0.1 ppm
Li (Lithium)≤ 0.02 ppm
Mg (Magnesium)≤ 0.5 ppm
Mn (Manganese)≤ 0.02 ppm
Mo (Molybdenum)≤ 0.05 ppm
Na (Sodium)≤ 0.5 ppm
Ni (Nickel)≤ 0.1 ppm
Pb (Lead)≤ 0.05 ppm
Sr (Strontium)≤ 0.02 ppm
Ti (Titanium)≤ 0.1 ppm
Tl (Thallium)≤ 0.05 ppm
V (Vanadium)≤ 0.05 ppm
Zn (Zinc)≤ 0.1 ppm
Zr (Zirconium)≤ 0.1 ppm
Residue on ignition (as sulfate)≤ 0.003 %
conforms to ACS, ISO, Reag. Ph Eur
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