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| CAS No.: | 7601-90-3 |
|---|---|
| Name: | Perchloric acid |
| Article Data: | 212 |
| Cas Database | |
| Molecular Structure: | |
|
|
|
| Formula: | ClHO4 |
| Molecular Weight: | 100.459 |
| Synonyms: | Perchloricacid (HClO4); |
| EINECS: | 231-512-4 |
| Density: | 1.664 g/mL at 25 °C |
| Melting Point: | -18 °C |
| Boiling Point: | 203 °C |
| Flash Point: | 104°F |
| Solubility: | soluble in water |
| Appearance: | clear, colorless Liquid |
| Hazard Symbols: |
 C, O, Xi
|
| Risk Codes: | 5-8-35-10-34-36/38 |
| Safety: | 23-26-36-45-36/37/39 |
| Transport Information: | UN 2920 8/PG 2 |
| PSA: | 71.44000 |
| LogP: | 0.15630 |
| Conditions | Yield |
|---|---|
| In water | 98.75% |
| In not given | 80% |
| Conditions | Yield |
|---|---|
| In acetonitrile byproducts: H2; Electrolysis; electrolysis of AgClO4 in CH3CN, Pt anode, 200 mA, 5V;; cathodic deposition of Ag, current yield 70 %;; | A >99 B 97% |
| In acetonitrile byproducts: H2; Electrolysis; electrolysis of AgClO4 in CH3CN, Pt anode, 200 mA, 5V;; cathodic deposition of Ag, current yield 70 %;; | A >99 B 97% |
| In acetonitrile byproducts: H2; Electrolysis; electrolysis of AgClO4 in CH3CN, Pt anode, 30 mA, 4V;; cathodic deposition of Ag, current yield 94 %;; | A >99 B 90% |
| In acetonitrile byproducts: H2; Electrolysis; electrolysis of AgClO4 in CH3CN, Pt anode, 30 mA, 4V;; cathodic deposition of Ag, current yield 94 %;; | A >99 B 90% |
| Conditions | Yield |
|---|---|
| In not given concd. HCl is added to NaClO4; filtering; filtrate is heated to 135°C;; acid is free of Cl(1-);; | 95% |
| In water part of cyclic process;; | |
| In water byproducts: NaCl; addn. of concd. HCl to NaClO4 under formation of NaCl; concg. soln. under removing of HCl excess;; | |
| In not given byproducts: NaCl; aq. HClO4 is obtained;; | |
| In water part of cyclic process;; |
perchloric acid
| Conditions | Yield |
|---|---|
| With hydrogenchloride In hydrogenchloride addition of 20% HCl-solution to solid waterfree Ba(ClO4)2 forms HClO4;; | 95% |
| With HCl In hydrogenchloride addition of 20% HCl-solution to solid waterfree Ba(ClO4)2 forms HClO4;; | 95% |
| With hydrogenchloride In hydrogenchloride addition of concd. HCl-solution to solid waterfree Ba(ClO4)2 forms HClO4;; | 90% |
| With HCl In hydrogenchloride addition of concd. HCl-solution to solid waterfree Ba(ClO4)2 forms HClO4;; | 90% |
| Conditions | Yield |
|---|---|
| In water byproducts: K2SiF6; 30% aq. H2SiF6 is added to a boiling aq. soln. of KClO4; mixt. is boiled for 1 h;; K2SiF6 and KClO4 is filtered off; H2SiF6 and H2SO4 is removed by BaCl2; evapn.; diln.; purity of acid depends on purity of H2SiF6; chem. pure acid is obtained by distn. under reduced pressure;; | 80% |
| In water excess of H2SiF6 is removed by BaCl2 or Ba(OH)2; Fe is removed by K4Fe(CN)6; evapn. to remove other impurities; acid contains alkali and K;; |
1-benzyl-5,7-dimethyl-4,6-dioxo-4,5,6,7-tetrahydropyrazolo<3,4-d>pyrimidine
A
perchloric acid
B
5,7-dimethylpyrazolo<3,4-d>pyrimidine-4,6(5H,7H)-dione
| Conditions | Yield |
|---|---|
| With palladium on activated charcoal; ethanol Hydrogenation; |
chlorine dioxide
water
ozone
A
hydrogenchloride
B
perchloric acid
| Conditions | Yield |
|---|---|
| In water reaction of ClO2 and O3; addn. of water;; |
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The Perchloric acid, with the cas registry number 7601-90-3, is a kind of colorless unstable slightly-fuming liquids. This chemical is soluble in water and is incompatible with a wide variety of substances, including organic materials, alcohols, amines, strong acids, strong bases, acid anhydrides, finely powdered metals, strong reducing agents. Then if contact with wood, paper and other celullose products, it may lead to explosion.
The product categories are various, including Inorganics; AcidsSynthetic Reagents; Electronic Chemicals; Micro/Nanoelectronics; Acid SolutionsSynthetic Reagents; Oxidation; Perchlorates; Volumetric Solutions; Acids, Mercury-free and Arsenic-freeAnalytical Reagents for General Use; Atomic Absorption Spectroscopy (AAS); Digestion Reagents; Acids&Bases; ACS GradeSynthetic Reagents; Essential Chemicals; Analytical Reagents for General Use; O-P, Puriss p.a.; Puriss p.a.; O-P, Puriss p.a. ACS; Puriss p.a. ACS; Acid Concentrates; Concentrates (e.g. FIXANAL); Solutions for non-aqueous titrations.
The characteristics of this chemical are as follows: (1)#H bond acceptors: 4 ; (2)#H bond donors: 1 ; (3)#Freely Rotating Bonds: 0 ; (4)Polar Surface Area: 60.44 ; (5)Exact Mass: 99.956336 ; (6)MonoIsotopic Mass: 99.956336 ; (7)Topological Polar Surface Area: 71.4 ; (8)Heavy Atom Count: 5 ; (9)Complexity: 114 ; (10)Covalently-Bonded Unit Count: 1.
The production method is as below: Firstly, dissolve the sodium chlorate in the dissolving tank with temperature of 45～50℃ after accessing the steam, and after saturation add barium hydroxide to remove chromate; Secondly go through the filtering and clear solution to get the sodium perchlorate; Thirdly, add sodium perchlorate into reactor and then add 31% hydrochloric [chlorhydric] acid to have the replacement reaction, then get the perchloric acid; Lastly, filter the sodium chloride crystal and then have the evaporation concentration of the solution to get the perchloric acid. You could refer to the following chemical equation: NaClO3+H2O→NaClO4+H2↑ NaClO4+HCl→HclO4+NaCI.
As to its usage, it is widely applied in many ways. It could be used as the steel analysis reagent, oxidizing agent and in the production of perchlorate; It could also be used in Electroplate the industry, filmstrip, diamond industry, electropolishing industry and Pharmaceutical Industry; Then it is usually used in producing grinding wheel, fireworks and explosive charges.
When you are dealing with this chemical, you should be very careful and then take some measures to protect yourself. For one thing, it is a kind of irritant chemical to eyes and skin, it may cause inflammation to the skin or other mucous membranes. For another thing, it is oxidising which may react exothermically with other chemicals. This chemical is flammable and if contacting with combustible material, it may cause fire. And heating may cause an explosion. In addition, it is corrosive that may destroy living tissue on contact.
Due to so many dangers, you should be required to take the following instructions. Wear suitable protective clothing, gloves and eye/face protection. If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice; And if in case of accident or if you feel unwell seek medical advice immediately (show the label where possible). Then do remember not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer).
Additionally, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: OCl(=O)(=O)=O
(2)InChI: InChI=1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)
(3)InChIKey: VLTRZXGMWDSKGL-UHFFFAOYSA-N
Below are the toxicity information of this chemical:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| dog | LD50 | oral | 400mg/kg (400mg/kg) | BEHAVIORAL: EXCITEMENT LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(8), Pg. 33, 1973. |
| mouse | LD50 | subcutaneous | 250mg/kg (250mg/kg) | BEHAVIORAL: EXCITEMENT LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(8), Pg. 33, 1973. |
| rat | LD50 | oral | 1100mg/kg (1100mg/kg) | BEHAVIORAL: EXCITEMENT LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(8), Pg. 33, 1973. |
