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F232822

Magnesium nitrate , Null

Synonym(s):
Magnesium modifier;Magnesium nitrate – nitric acid solution

CAS NO.:

Empirical Formula: MgN2O6

Molecular Weight: 148.315

MDL number: MFCD00011103

EINECS: 231-104-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 648 °C(lit.)
Boiling point: 1090 °C(lit.)
Density  0.889 g/mL at 25 °C
vapor pressure  1 mm Hg ( 621 °C)
RTECS  OM3756000
Flash point: −26 °F
solubility  H2O: soluble
form  turnings
color  white cubic crystals, crystalline
Water Solubility  Freely soluble in water. Moderately soluble in ethanol and ammonia.
Sensitive  Hygroscopic
Merck  13,5697
Exposure limits ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)

Description and Uses

Magnesium nitrate has the molecular formula of Mg(NO3)2 and the molecular weight of 148.3152 g/ mol.
Magnesium nitrate is prepared by the action of nitric acid on magnesium carbonate, oxide or hydroxide:
MgCO3 + 2HNO3 ? Mg(NO3)2 + CO2 +H2O
Mg(OH)2 + 2HNO3 ? Mg(NO3)2 + 2H2O
The salt crystallizing at room temperature after evaporation is the hexahydrate, Mg(NO3)2·6H2O. Two stable hydrates are formed, the hexahydrate [CAS number =13446-18-9] and the dihydrate, Mg(NO3)2· 2H2O [CAS number = 15750-45-5].

It is used in printing, chemical, agriculture and ceramics industries. Its fertilizer grade has 10.5% nitrogen and 9.4% magnesium.

Safety

Symbol(GHS) 
GHS03,GHS07
Hazard statements  H272-H315-H319-H335
Precautionary statements  P210a-P220-P221-P305+P351+P338-P405-P501a
Hazard Codes  C,Xi,O
Risk Statements  34-36/37/38-8-36/38-35
Safety Statements  43-7/8-26-17-36-45-36/37/39
RIDADR  UN 2056 3/PG 2
WGK Germany  -
TSCA  Yes
HazardClass  5.1

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