Perchloric acid
SIGALD/77234 - puriss. p.a., ACS reagent, packed in coated, shock- and leak-protected glass bottle, ≥60% (T)
Synonym: PCA
CAS Number: 7601-90-3
Empirical Formula (Hill Notation): HClO4
Molecular Weight: 100.46
MDL Number: MFCD00011325
Linear Formula: HClO4
Product Type: Chemical
anion traces | chlorate (ClO3-): ≤10 mg/kg |
chloride (Cl-): ≤3 mg/kg | |
phosphate, silicate (as SiO2): ≤5 mg/kg | |
sulfate (SO42-): ≤10 mg/kg | |
cation traces | Ag: ≤0.1 mg/kg |
Al: ≤0.05 mg/kg | |
As: ≤0.05 mg/kg | |
Ba: ≤0.02 mg/kg | |
Bi: ≤0.1 mg/kg | |
Ca: ≤0.5 mg/kg | |
Cd: ≤0.05 mg/kg | |
Co: ≤0.05 mg/kg | |
Cu: ≤0.1 mg/kg | |
Fe: ≤1 mg/kg | |
K: ≤0.1 mg/kg | |
Li: ≤0.02 mg/kg | |
Mg: ≤0.5 mg/kg | |
Mn: ≤0.02 mg/kg | |
Mo: ≤0.05 mg/kg | |
Ni: ≤0.1 mg/kg | |
Pb: ≤0.05 mg/kg | |
Sr: ≤0.02 mg/kg | |
Tl: ≤0.05 mg/kg | |
Zn: ≤0.1 mg/kg | |
concentration | ≥60% (T) |
density | 1.670 g/cm3 |
form | liquid |
grade | ACS reagent |
puriss. p.a. | |
ign. residue | ≤0.003% (as SO4) |
impurities | ≤0.00005% free chlorine (Cl) |
≤0.001% total nitrogen (N) | |
InChI | 1S/ClHO4/c2-1(3,4)5/h(H,2 |
InChI key | VLTRZXGMWDSKGL-UHFFFAOYSA |
quality | packed in coated, shock- and leak-protected glass bottle |
Quality Level | 200 ![]() |
SMILES string | OCl(=O)(=O)=O |
Application: |
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General description: | Perchloric acid (HClO4), an oxygen acid of chlorine, is a colorless liquid. It is strongly acidic in nature. Hydrates of perchloric acid are obtained on its dissolution in water. |
Other Notes: | Reagent for the decomposition of metals and organic compounds (danger of explosions) |
Symbol | ![]() ![]() ![]() ![]() |
Signal word | Danger |
Hazard statements | H271 - H290 - H302 - H314 - H373 |
Precautionary statements | P210 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 + P310 - P314 |
Hazard Codes | O,C |
Risk Statements | 5-8-22-35 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 1873 8(5.1) / PGI |
WGK Germany | WGK 1 |
Density | 1.670 g/cm3 |
UNSPSC | 12352106 |