EN
Xi'an Unique Electronic & Chemical Co., Ltd.

Boric Acid Fire

Boric acid is heated to 100 ℃, due to constantly lose water, become metaborate it first, it has three variants, melting point 176 ℃, 201 ℃ and 236 ℃ respectively. Boric acid dehydration to produce metaborate ended (as long as the temperature does not exceed 150 ℃). After further heating, the water is stripped to form boron oxide. Crystal boron oxide melt when 450 ° C. The amorphous boron oxide has no definite melting point, it begins to soften, in 325 ℃ 500 ℃ all become liquid. Boric acid is a stable crystal, usually preserved without chemical reaction. Recrystallization and agglomeration occur when temperature and humidity fluctuate. When storing, keep away from drastic environment and keep the packaging intact.

We can also assume that boric acid boron is already trivalent, it can no longer be oxidized, so it won't burn. But it produces a harmful combustion product: boron oxide.

Boric acid reacts with ethanol to form ester. H3BO3+3C2H5OH==(concentrated H2SO4, ignition)==B(OC2H5)3+3H2O, boric acid energy and alcohol form boric acid ester, boric acid ester combustion is green flame, can be used for boric acid qualitative analysis, but cannot be used for ethanol qualitative analysis.

Boric Acid Fire
Related News
  • Knowledge of the Boiling Point of Sodium Nitrate

    Knowledge of the Boiling Point of Sodium Nitrate

    October 25, 2018The boiling point of sodium nitrate is the temperature at which the saturated vapor pressure of the product is equal to the external pressure. Therefore, the more knowledge we know about the product, ...view
  • Boric Acid Flakes

    Boric Acid Flakes

    May 29, 2019Boric acid chip can be ground into a boric acid powder, boric acid powder is a kind of external use, appearance is white powder, mainly as a disinfection antiseptic, without excitant, boric acid powde...view
  • The Price Of Boron Oxide Is Increasing in The Second Half of 2018

    The Price Of Boron Oxide Is Increasing in The Second Half of 2018

    August 9, 2018Environmental problems are becoming more and more serious all over the world. Here it is also serious in China. The government has taken series of actions to protect the environment from 2017 such as ...view
Contact Us