Sodium nitrate , AR,99.0% , 7631-99-4
Synonym(s):
Sodium nitrate;Chile niter;Chile salpeter;Chile saltpeter, Soda niter;Nitric acid sodium salt
CAS NO.：7631-99-4
Empirical Formula: NNaO3
Molecular Weight: 84.99
MDL number: MFCD00011119
EINECS: 231-554-3
PRODUCT Properties
| Melting point: | 306 °C (dec.) (lit.) |
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| Boiling point: | 380 °C |
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| Density | 1.1 g/mL at 25 °C |
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| storage temp. | Store at RT. |
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| solubility | H2O: 1 M at 20 °C, clear, colorless |
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| form | Solid |
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| Specific Gravity | 2.261 |
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| color | White or colorless |
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| Odor | Odorless |
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| PH | 5.5-8.0 (50g/l, H2O, 20℃) |
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| Water Solubility | 900 g/L (20 ºC) |
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| Sensitive | Hygroscopic |
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| Merck | 14,8647 |
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| crystal system | Three sides |
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| Space group | R3c |
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| Lattice constant |
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| Dielectric constant | 5.2（0.0℃） |
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| Stability: | Stable. Strong oxidizer - may ignite flammable material. Incompatible with cyanides, combustible material, strong reducing agents, aluminium. |
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| LogP | -0.129 (est) |
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| CAS DataBase Reference | 7631-99-4(CAS DataBase Reference) |
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| EPA Substance Registry System | Sodium nitrate (7631-99-4) |
Description and Uses
Sodium nitrate, also known as Chile saltpeter and soda niter, has a molecular formula of NaNO3. Sodium nitrate is a colorless, odorless, transparent crystal. It oxidizes when exposed to air and is soluble in water. This material explodes at 1000°F (537°C), much lower than temperatures encountered in many fires. Sodium nitrate is toxic by ingestion and has caused cancer in test animals. When used in the curing of fish and meat products, it is restricted to 100 ppm. Sodium nitrate is incompatible with ammonium nitrate and other ammonium salts. The four-digit UN identification number is 1498. Sodium nitrate is used as an antidote for cyanide poisoning and in the curing of fish and meat.
Sodium Nitrate is the salt of nitric acid that functions as an antimi- crobial agent and preservative. it is a naturally occurring substance in spinach, beets, broccoli, and other vegetables. it consists of color- less, odorless crystals or crystalline granules. it is moderately deli- quescent in moist air and is readily soluble in water. it is used in meat curing to develop and stabilize the pink color. see nitrate.
Safety
| Symbol(GHS) |   GHS03,GHS07 |
| Signal word | Warning |
| Hazard statements | H272-H319 |
| Precautionary statements | P210-P220-P264-P280-P305+P351+P338-P337+P313 |
| Hazard Codes | O,Xn,Xi,C |
| Risk Statements | 8-22-36/37/38-36/38-34-36 |
| Safety Statements | 17-26-27-36/37/39-37/39-36-45 |
| RIDADR | UN 1498 5.1/PG 3 |
| WGK Germany | 1 |
| RTECS | WC5600000 |
| F | 3 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | III |
| HS Code | 31025090 |
| Hazardous Substances Data | 7631-99-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in rabbits: 1.955 g anion/kg (Dollahite, Rowe) |
