| Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|||||
| First Prev [ 1 2 3 ] Next Last |
|
General |
|
|---|---|
| Name | Hydrogen peroxide |
| Chemical formula | H2 O2 |
| Appearance | Colourless liquid |
|
Physical |
|
| Formula weight | 34.0 amu |
| Melting point | 272.6 K (-0.4 °C) |
| Boiling point | 423 K (150 °C) |
| Density | 1.4 ×103 kg/ m3 |
| Solubility | miscible |
|
Thermochemistry |
|
| ΔfH0gas | -136.11 kJThe joule (symbol J also called newton metre or coulomb volt is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honour of the physicist James Prescott Joule (1818-1889). 1 joule 1 N · 1 m 1 newton · 1 metre 1 k/ molThe mole (symbol: mol) is one of the seven SI base units and is commonly used in chemistry. It measures the amount of substance of a system and is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 0 |
| ΔfH0liquid | -188 kJ/mol |
| ΔfH0solid | -200 kJ/mol |
| S0gas, 1 barIn chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. By comparing the entropies of products and reactants in a chemical reaction, we can determine whether the reac | 232.95 J/mol·K |
| S0liquid, 1 bar | 110 J/mol·K |
| S0solid | ? J/mol·K |
|
Safety | |
| Ingestion | Serious injury, death possible. |
| Inhalation | Severe irritation, death possible. |
| Skin | Causes bleaching—flush immediately. |
| Eyes | Dangerous. |
| More info | Hazardous Chemical Database |
|
SIThe International System of Units (symbol: SI (for the French phrase Systeme International d'Unites , is the most widely used system of units. It is used for everyday commerce in virtually every country of the world except the United States, and it is uni units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references
| |
The chemical compoundA chemical compound is a substance formed from two or more elements, with a fixed ratio determining the composition. For example, dihydrogen monoxide ( water, ) is a compound composed of two hydrogen atoms for every oxygen atom. In general, this fixed rat hydrogen peroxide ( H2 O2) is a viscous liquid that has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant and (in high concentrations) as an oxidizer or monopropellant in rockets.