Basic information
- Standard SMILES
[O-][Cl+2]([O-])O- InChIKey
LSUVGSGHYCLVPU-UHFFFAOYSA-N- Molecular formula
- ClHO3
- Average molar mass
- 84.46 g/mol
- Monoisotopic mass
- 83.96142157
Overview
Chloric acid is a colorless liquid. It will accelerate the burning of combustible materials and can ignite most on contact. It is corrosive to metals and tissue. It is used as a reagent in chemical analysis and to make other chemicals.
Names & identifiers
- Preferred name
- Chloric acid
- IUPAC
- chloric acid
- English name
- CHLORIC ACID
- Molecular formula
- ClHO3
- Molecular weight
- 84.46
Names & synonyms
Show more names
Database identifiers
- CAS
7790-93-4- PubChem CID
- 19654
- DTXSID
DTXSID1047449- ChEMBL
CHEMBL1161633- ChEBI
CHEBI:17322- UNII
- Z0V9L75H3K
- EC Number
- 232-233-0
- Nikkaji
- J74.689D
Properties
Computed structural properties
- XLogP
- 2.1
- Topological polar surface area
- 54.4 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 4
- Formal charge
- 0
- Complexity
- 46.2
Experimental & physicochemical properties
Chemical Classes
Toxic Gases & Vapors -> Acids, Inorganic
Reactive agents - 4th degree
Physical Description
Chloric acid is a colorless liquid. It will accelerate the burning of combustible materials and can ignite most on contact. It is corrosive to metals and tissue. It is used as a reagent in chemical analysis and to make other chemicals.
Found only in aqueous solution; [Merck Index] Clear colorless liquid; [MSDSonline]
Physicochemical properties
- Melting point
- -20 ℃ · <-20℃ [CRC10]
- Boiling point
- 100 °C · >100 °C
- Density
- 1.2 g/mL · 1.2 g/mL at 25 °C
- solubility
- 2 O · very soluble in H2O
- color
- exists only in aqueous solution
- Water Solubility
- 2 O · very soluble H2O [CRC10]
- Merck
- 13 · 13,2109
- CAS DataBase Reference
- 7790 · 7790-93-4
- FDA UNII
- 0 V9L75H3K · Z0V9L75H3K
- EPA Substance Registry System
- Chloric acid (7790-93-4)
- Symbol(GHS)
- 3 · GHS03,GHS05
- Signal word
- Danger
- Hazard statements
- 271 · H271-H314
- Precautionary statements
- 260 · P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P405-P501
- Hazard Codes
- O,C
- Risk Statements
- 8 · 8-34
- Safety Statements
- 17 · 17-26-36/37/39-45
- RIDADR
- 2626 · UN 2626
- TSCA
- TSCA listed
- HazardClass
- 5.1 · 5.1
- PackingGroup
- II
Safety & regulation
GHS classification
GHS Classification
Danger
H271 (100%): May cause fire or explosion; strong Oxidizer [Danger Oxidizing liquids; Oxidizing solids]
P210, P220, P260, P264, P280, P283, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P321, P363, P370+P378, P371+P380+P375, P405, P420, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 39 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
H271: May cause fire or explosion; strong Oxidizer [Danger Oxidizing liquids; Oxidizing solids]
Hazard information
Regulatory Information
Chloric acid: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Fire Hazards
Excerpt from ERG Guide 140 [Oxidizers]:
CAUTION: Ammonium nitrate products may explode if involved in fire or contaminated with hydrocarbons (fuels), organic matter, other contaminants or when hot molten and contained. Treat as an explosive (GUIDE 112).
Health Hazards
Excerpt from ERG Guide 140 [Oxidizers]:
· Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death.
Hazards Summary
A strong skin and mucous membrane irritant; [Merck Index] Corrosive to tissue; [CAMEO] An eye irritant; [eChemPortal: ERMA] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis and pulmonary edema; [MSDSonline]
Reactivity Profile
Self-reactive. Concentrations of CHLORIC ACID above 40% decompose [Mellor 2 Supp. 1:576 1956]. Antimony sulfide and concentrated solutions of chloric acid react with incandescence [Mellor Supp. II Part I:584 1956]. Arsenic sulfide and concentrated solutions of chloric acid react with incandescence. Reacts with vigor even explodes with other metal sulfides, i.e. copper sulfide [Mellor Supp. II Part I:584 1956]. In contact with oxidizable materials, including ammonia, reactions can be extremely violent. Filter paper ignites after soaking in chloric acid, [Mellor, 1946, Vol. 2, 310]. Explosions have been recorded by mixtures of chloric acid solution with metals such as: antimony, bismuth, and iron. This is due to the formation of explosive compounds including hydrogen.
Hazard Classes and Categories
Ox. Liq. 1 (100%)
Oxidizing liquids - Category 1-2
Reactive agents - 4th degree
Safety & protection
Accidental Release Measures
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· Keep combustibles (wood, paper, oil, etc.) away from spilled material.
First Aid
Excerpt from ERG Guide 140 [Oxidizers]:
General First Aid:
Isolation and Evacuation
Excerpt from ERG Guide 140 [Oxidizers]:
Immediate precautionary measure
Toxicology
Safety data
- tsca
- TSCA listed
- ridadr
- UN 2626
- risk_code
- 8-34
- Signal word
- Danger
- Symbol(GHS)
- GHS03,GHS05
- hazard_code
- O,C
- safety_code
- 17-26-36/37/39-45
- hazard_class
- 5.1
- packing_group
- II
- Hazard statements
- H271-H314
- Precautionary statements
- P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P405-P501
Chemistry & industry
Uses & manufacturing
Applications
DescriptionChloric acid, HClO3, is an oxoacid of chloride, and the formal precursor of chlorate salts. It is a strong acid (pKa=-1) and a strong oxidizing agent. It is stable in cold aqueous solution up to a concentration of approximately 30%, and solution of up to 40% can be prepared by careful evaporation under reduced pressure. Above these concentrations, and on warming, chloric acid solutions decompose to give a variety of products, for example: 8HClO3→4HClO4+2H2O+2Cl2+3O2 Note that it disproportionates into perchloric acid in which the chlorine atom has a+7 oxidation state and also the zero oxidation state of chlorine gas (an oxidation–reduction reaction). Thus, under the proper conditions, it can also be used to make perchloric acid. 3HClO3→HClO4+H2O+2ClO2
UsesOxidizing agent; with H2SO3 as catalyst in acrylonitrile polymerization.
General DescriptionCHLORIC ACID is a colorless liquid. CHLORIC ACID will accelerate the burning of combustible materials and can ignite most on contact. CHLORIC ACID is corrosive to metals and tissue. CHLORIC ACID is used as a reagent in chemical analysis and to make other chemicals.
Upstream & downstream products
Downstream products
Suppliers6 total
Additional notes
DefinitionChEBI: Chloric acid is a chlorine oxoacid. It is a conjugate acid of a chlorate.
Related reactions
Linked notes
Loading…