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Postion:Product Catalog >Inorganic chemistry>Oxides and peroxides>non-metals oxides and peroxides>Hydrogen peroxide

Hydrogen peroxide

US $1.00 / 1KG

Min. Order: 1G
Purity: 98%
Cas No.: 7722-84-1
Supply Ability: 100KG
  • 1KG

Overview

Product Name: Hydrogen peroxide
CAS No.: 7722-84-1
EC-No.:
Min. Order: 1G
Purity: 98%
Supply Ability: 100KG
Release date: 2018/08/21
Product Advantage

AD68

Hydrogen peroxide Basic information
Product Name: Hydrogen peroxide
Synonyms: albone35cg;albone50;albone50cg;albone70;albone70cg;alboneds;Dihydrogen dioxide;dihydrogendioxide
CAS: 7722-84-1
MF: H2O2
MW: 34.01
EINECS: 231-765-0
Product Categories: Oxidative Stress Proteins and ReagentsSynthetic Reagents;Cell Stress;Nitric Oxide and Cell Stress;Oxidation;Peroxides;Synthetic Reagents;PeroxidesMicro/Nanoelectronics;Electronic Chemicals;Semiconductor Grade Chemicals;Analytical Reagents;Pure Reagents for Wet Digestion (Trace SELECT)Analytical/Chromatography;Trace Analysis Reagents;Atomic Absorption Spectroscopy (AAS);Digestion Reagents;Ultrapure Reagents for Wet Digestion (Trace SELECTUltra);CatalaseAnalytical Reagents for General Use;E-L, Puriss p.a. ACS;Enzyme Substrates;Puriss p.a. ACS;Substrates by Enzyme;PeroxidesEssential Chemicals;Reagent Grade;Routine Reagents;ACS GradeSynthetic Reagents;Essential Chemicals
Mol File: 7722-84-1.mol
Hydrogen peroxide Structure
 
Hydrogen peroxide Chemical Properties
Melting point  -33 °C
Boiling point  108 °C
density  1.13 g/mL at 20 °C
vapor density  1.1 (vs air)
vapor pressure  23.3 mm Hg ( 30 °C)
refractive index  1.3350
Fp  107°C
storage temp.  2-8°C
solubility  diethyl ether: soluble
pka 11.5(at 25℃)
form  Solution
color  ≤10(APHA)
Water Solubility  miscible
Merck  14,4798
BRN  3587191
Stability: Slightly unstable - will very slowly decompose. Decomposition is promoted by catalysts and heating, so store cool. Light sensitive, keep in the dark. May contain stabilizer. Reacts with rust, brass, zinc, nickel, finely powdered metals, copper and iron and their alloys.
CAS DataBase Reference 7722-84-1(CAS DataBase Reference)
NIST Chemistry Reference Hydrogen peroxide(7722-84-1)
EPA Substance Registry System Hydrogen peroxide (H2O2)(7722-84-1)
 
Safety Information
Hazard Codes  Xn,C,O
Risk Statements  22-41-37/38-34-20/22-8-35-5
Safety Statements  26-39-45-36/37/39-28A-17-28-1/2
RIDADR  UN 2014 5.1/PG 2
WGK Germany  1
RTECS  MX0899500
TSCA  Yes
HazardClass  5.1
PackingGroup  II
Hazardous Substances Data 7722-84-1(Hazardous Substances Data)
Hydrogen peroxide Usage And Synthesis
Chemical Properties Colorless liquid; pure compound or 90% solution unstable; bitter taste; density 1.463 g/mL; boils at 150.2°C; freezes at –0.43°C; vapor pressure 9.9 torr at 50°C and 121.5 torr at 100°C; viscosity 1.245 centipoise at 20°C; surface tension 80.4 dyn/cm at 20°C; miscible with water in all proportions; soluble in ether; densities of 30%, 70%, and 90% H2O2 solutions are 1.1081, 1.2839 and 1.3867 g/mL, respectively, at 25°C; freezing points at these concentrations are –25.7°C, –40.3°C and –11.5°C, respectively; and their boiling points are 106.2°C, 125.5°C and 141.3°C, respectively; decomposed by many organic solvents; pKa at 25°C is 11.62.
History Hydrogen peroxide was prepared first by Thenard in 1818. It has many industrial applications. Aqueous solutions at varying concentrations are used for bleaching fabrics, silks, furs, feathers and hair; as a dough conditioner; and a bleaching and oxidizing agent in foods; for cleaning metals; as a laboratory reagent for oxidation; as an antiseptic; in sewage and wastewater treatment; and in preparation of inorganic and organic peroxides. An 80% concentrated solution is used in rocket propulsion.
Definition ChEBI: An inorganic peroxide consisting of two hydroxy groups joined by a covalent oxygen-oxygen single bond.
Preparation Hydrogen peroxide is commercially produced by autooxidation of ethyl anthraquinol in a solvent such as toluene or ethylbenzene. The product ethyl anthraquinone is reduced by hydrogen over supported nickel or platinum catalyst to regenerate back the starting material, ethyl anthraquinol for a continuous production of H2O2. The reaction steps are:


Hydrogen peroxide may also be made by heating 2-propanol with oxygen at 100°C under 10 to 20 atm pressure: (CH3)2CHOH (CH3)2C(OH)OOH → CH3COCH+ H2O2 Vapor phase partial oxidation of hydrocarbons also yield H2O2. However, several by-products are generated, the separations of which make the process difficult and uneconomical.
Hydrogen peroxide may also be prepared by treating barium peroxide with dilute sulfuric acid:
BaO+ 2H2SO→ H2O+ BaSO4
Another preparative method involves electrolytic conversion of aqueous sulfuric acid to peroxydisulfate followed by hydrolysis to H2O(Weissenstein process). The reaction steps are as follows:

2H2SO4 → H2S2O+ H2
H2SO+ H2O → H2SO+ H2SO5 H2SO+ H2O → H2O+ H2SO4
An earlier method, which currently is no longer practiced commercially, involved oxidation of phenyl hydrazine: Hydrogen peroxide obtained this way may contain many impurities, depending on the process used. Such impurities are removed by ion exchange, solvent extraction, and distillation. Dilute solutions of H2Omay be purified
and concentrated by fractional distillation at reduced pressures.
 
General Description A colorless liquid dissolved in water. Vapors may irritate the eyes and mucous membranes. May violently decompose on contact with most common metals and their compounds. Contact with combustible material may result in spontaneous ignition. Corrosive to tissue. Under exposure to fire or heat containers may violently rupture due to decomposition. Used to bleach textiles and wood pulp, in chemical manufacturing, food processing, and in water purification.
Air & Water Reactions Water soluble.
Reactivity Profile The hazards associated with the use of HYDROGEN PEROXIDE(especially highly concentrated solutions) are well documented. There is a release of enough energy during the catalytic decomposition of 65% peroxide to evaporate all water and ignite nearby combustible materials. Most cellulose materials contain enough catalyst to cause spontaneous ignition with 90% peroxide. Contamination of concentrated peroxide causes the possibility of explosion. Readily oxidizable materials, or alkaline substances containing heavy metals may react violently. Solvents(acetone, ethanol, glycerol) will detonate on mixture with peroxide of over 30% concentration, the violence increasing with concentration. Concentrated peroxide may decompose violently in contact with iron, copper, chromium, and most other metals or their salts, and dust(which frequently contain rust). During concentration under vacuum of aqueous or of aqueous-alcoholic solutions of hydrogen peroxide, violent explosions occurred when the concentration was sufficiently high(>90%), [Bretherick 2nd ed., 1979]. Hydrogen selenide and hydrogen peroxide undergo a very rapid decomposition, [Mellor 1:941(1946-1947)].
Hazard Hydrogen peroxide is a strong oxidizing agent. Concentrated solutions, even a 30% aqueous solution, should be handled carefully. The compound decomposes violently in the presence of trace impurities. Inhibitors are, therefore, added at trace levels to prevent decomposition. Explosion can occur when concentrated solutions are heated or brought in contact with a number of organic substances that are readily oxidizable or that form organic peroxides, such as alcohols, aldehydes, ketones, anhydrides, and carboxylic acids (Patnaik, P. 1999. A Comprehensive Guide to the Hazardous Properties of Chemical Substances, 2nd ed. New York: John Wiley & Sons). Also, reactions with metals, metal alloys, a number of metal salts and oxides, and concentrated mineral acids can proceed to explosive violence.
Health Hazard TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Fire may produce irritating and/or toxic gases. Toxic fumes or dust may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Runoff from fire control or dilution water may cause pollution.
Fire Hazard May explode from friction, heat or contamination. These substances will accelerate burning when involved in a fire. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react explosively with hydrocarbons (fuels). Containers may explode when heated. Runoff may create fire or explosion hazard.
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