1. White solid, easily soluble in water, giving off a lot of heat.
2. It has water absorption and deliquescence. When weighing sodium hydroxide, be sure to use glassware (such as beaker and watch mirror), because sodium hydroxide will absorb moisture in the air and react with carbon dioxide.
3. The density is 2.130g/cm.
Sodium hydroxide, chemical formula NaOH, white solid, like mysterious snowflake, pure and striking. Strong water absorption, easy deliquescence in air to form aqueous solution. This liquid sodium hydroxide has extremely high solubility, which makes it an extremely important industrial raw material.
The density of sodium hydroxide is 2. 130g/cm, which is close to that of water, but its melting point is as high as 3 18℃, which keeps it in a stable physical state at high temperature. This high temperature stability makes sodium hydroxide play an irreplaceable role in many demanding industrial applications.
The dissolution process of sodium hydroxide is an exothermic reaction, which means that a lot of heat will be released during the dissolution process. This characteristic is reflected in many practical applications, for example, in chemical experiments, we can obtain the required heat by dissolving sodium hydroxide.
Besides water absorption and melting point, sodium hydroxide has other unique physical properties. For example, it is a strong alkali, which is very corrosive. During the experiment, sodium hydroxide should be used carefully to avoid contact with the skin, so as not to cause unnecessary harm.
These physical properties of sodium hydroxide not only reflect its uniqueness as a chemical substance, but also reflect its important position in modern industry and scientific research. From petrochemical industry to environmental protection, from basic scientific research to high-end material preparation, sodium hydroxide plays a key role.
Although sodium hydroxide has many advantages, its use also requires us to be extra careful. When operating and using sodium hydroxide, you must strictly abide by the safety regulations and wear protective equipment to avoid any possible personal injury.