Níotráit Sóidiam

Sodium nitrate is a kind of inorganic salt, the chemical formula is NaNO3, white solid powder, also known as Chilean saltpeter or Peruvian saltpeter (less common). The world’s largest sodium nitrate mine is located in Chile’s Atacama Desert. It can be synthesized by the following chemical formula: NaOH(aq) + HNO3(aq) → NaNO3(aq) + H2O(l) sodium nitrate is heated to 380℃ and decomposed to produce sodium nitrite and oxygen. Sodium nitrate is oxidizing and can be co-heated with lead to produce sodium nitrite and lead oxide. It also oxidizes hydroiodic acid to iodine elemental and forms nitric oxide at room temperature: the introduction of hydrogen ions into sodium nitrate solution will show the characteristics of nitric acid: sodium nitrate is one of the components of curing salt.

Iarratas

1. Réimse lotnaidicídí: Is amhábhar tábhachtach é clóiríd trichloroacetyl do shintéis na clórpyrifos, chlorpyrifos meitile agus táirgí lotnaidicídí eile den ghlúin nua. Tá tréithe speictrim leathan ag clorpyrifos agus clorpyrifos meitile, éifeachtacht ard, tocsaineacht íseal agus iarmhar íseal, agus tá siad in úsáid go forleathan ar fud an domhain. Freisin, Is amhábhar tábhachtach é clóiríd trichloroacetyl freisin chun luibhicídí ardéifeachtúlachta agus tocsaineachta íseal a shintéisiú.

2. Réimse cógaisíochta: Tá iarratais áirithe ag clóiríd trichloroacetyl freisin sa réimse cógaisíochta, a úsáidtear go príomha i sintéis fungaicídí agus frithmhiocróbaigh iltimthriallach agus drugaí eile.

3. idirmheánacha orgánacha agus réimsí ceimiceacha mín: is féidir clóiríd trichloroacetyl a úsáid mar amhábhar tábhachtach do shintéis orgánach, le haghaidh táirgeadh cúnta ard-ghrád amhail éitear aramatacha iltimthriallach, a úsáidtear go forleathan sa dá mhór-réimse polaimíd (níolón) agus poileistear. Freisin, is féidir clóiríd trichloroacetyl a úsáid freisin chun idirmheánacha orgánacha eile agus táirgí ceimiceacha fíneáil a shintéisiú.

1. Agricultural field: Sodium nitrate can be used as fertilizer to provide nutrients for plants and improve soil properties. It can improve the availability of phosphorus and trace elements, promote the formation of organic acids, and help the phosphorus and trace elements in soil particles to be released into the soil solution, thereby improving the utilization rate of water by plants. Freisin, it can also reduce the absorption of chlorine by plants and improve the drought resistance of plants.

2. Industrial field: Sodium nitrate has a wide range of applications in industrial production. It can be used as a concrete admixture to improve the early strength of concrete and prevent freezing damage to construction concrete in winter. Freisin, in the glass industry, sodium nitrate can be used as a decolorizing agent, defoamer, clarifying agent and oxidation flux. In the enamel industry, sodium nitrate can be used as oxidizing agent and flux. In the metallurgical industry, sodium nitrate can be used as a heat treatment agent for iron making and aluminum alloy. In mechanical manufacturing, it can be used as a metal cleaning agent.

3. Food field: Sa tionscal bia, sodium nitrate can be used as a hair color agent for meat processing, which can prevent meat deterioration and play a seasoning role. It is also used in the production of picric acid and dyes.

4. Réimse cógaisíochta: Sodium nitrate also has certain applications in the pharmaceutical industry. It can be used as a culture solution for penicillin and as a catalyst in the pharmaceutical industry. Freisin, in some specific cases, sodium nitrate can also be used to treat cyanide poisoning.

5. Fireworks and explosives manufacturing: Because sodium nitrate is oxidizing, it also plays an important role in the manufacture of fireworks and explosives. It can be used as an oxidizer in fireworks and as a component of explosives.