Sodium nitrate: Difference between revisions
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==Uses== | ==Uses== | ||
===Other=== | ===Other=== | ||
* Feedstock for [[nitric acid]] | * Feedstock for [[nitric acid]] and [[sodium nitrite]] | ||
* Source of nitrate ions | * Source of nitrate ions | ||
* Pharm: IV treatment for cyanide and [[hydrogen sulfide]] poisoning. | * Pharm: IV treatment for cyanide and [[hydrogen sulfide]] poisoning. | ||
==Natural occurrence== | ==Natural occurrence== | ||
* Sodium nitrate occurrs naturally as '''chilean saltpeter''' | * Sodium nitrate occurrs naturally as '''chilean saltpeter''' | ||
Latest revision as of 00:40, 17 October 2023
| Chemical formula | NaNO3 |
|---|---|
| OTP appearance | white crystals |
| Molar Mass(g/mol) | 85 |
| Density(g/cc) | 2.257 |
| Melting Point(°C) | 308 |
| NFPA 704 |  0
1
0
OX
|
| Thermal Decomposition | sodium nitrate
380°C NaNO2,O2 |
Uses
Other
- Feedstock for nitric acid and sodium nitrite
- Source of nitrate ions
- Pharm: IV treatment for cyanide and hydrogen sulfide poisoning.
Natural occurrence
- Sodium nitrate occurrs naturally as chilean saltpeter
Hazards
- LD50 is 3.6g/kg (inhaled)
Production
Synthesis
- Neutralize nitric acid with sodium salt (sodium hydroxide, sodium bicarbonate)
- HNO3 + NaOH → NaNO3 + H2O
- HNO3 + NaHCO3 → CO2 + H2O + NaNO3
- Metathesis: Combine sodium carbonate with calcium nitrate, silver nitrate, lead nitrate...
- Na2CO3(aq) + Ca(NO3)2(aq) → 2 NaNO3(aq) + CaCO3(s)