Home Categories Inorganic chemistry Sodium nitrate
A7312012

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

Update time: 2022-07-08

PRODUCT Properties

Melting point: 306 °C (dec.) (lit.)
Boiling point: 380 °C
Density  1.1 g/mL at 25 °C
storage temp.  Store at RT.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
Specific Gravity 2.261
color  White or colorless
PH 5.5-8.0 (50g/l, H2O, 20℃)
Odor Odorless
Water Solubility  900 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,8647
crystal system Three sides
Space group R3c
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.507080.507081.68189090120

Dielectric constant 5.2(0.0℃)
Stability: Stable. Strong oxidizer - may ignite flammable material. Incompatible with cyanides, combustible material, strong reducing agents, aluminium.
LogP -0.129 (est)

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
3
TSCA  Yes
HazardClass  5.1
PackingGroup  III
HS Code  31025090
Toxicity LD50 orally in rabbits: 1.955 g anion/kg (Dollahite, Rowe)

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