Magnesium nitrate hexahydrate Chemical Properties

Melting point:

89 °C

Boiling point:

330 °C

Density 

1.63

vapor density 

6 (vs air)

vapor pressure 

1 mm Hg ( 621 °C)

Flash point:

−26 °F

storage temp. 

2-8°C

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

turnings

color 

White

Specific Gravity

1.64

PH

5.0-8.2 (25℃, 50mg/mL in H2O)

Water Solubility 

420 g/L (20 ºC)

Sensitive 

Hygroscopic

Merck 

14,5674

BRN 

4948473

Stability:

Stable. Strong oxidizer - contact with organic material may lead to fire. Do not store near combustible materials. Incompatible with combustible materials, organics, strong reducing agents.

CAS DataBase Reference

13446-18-9(CAS DataBase Reference)

EPA Substance Registry System

Magnesium (II) nitrate, hexahydrate (13446-18-9)

Safety Information

Hazard Codes 

C,Xi,O,T

Risk Statements 

34-8-36/37/38-23/24/25

Safety Statements 

43-7/8-37/39-36-17-26-45-36/37/39-23-27

RIDADR 

UN 2056 3/PG 2

WGK Germany 

-

RTECS 

OM3756000

F 

3-9

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

28342980

Toxicity

LD50 orally in Rabbit: 5440 mg/kg

MSDS

• Language:English Provider:Magnesium nitrate hexahydrate
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Magnesium nitrate hexahydrate Usage And Synthesis

Uses

Sodium bisulfate is used for pickling metals; bleaching leather; carbonizing wool; in carbonic acid baths, and manufacturing magnesia cements.

Production Methods

Sodium bisulfate is a by-product of sodium sulfate manufacture. One process involves reacting sulfuric acid with sodium nitrate at high temperature to form nitric acid and sodium bisulfate:
NaNO3 + H2SO4 → NaHSO4 + HNO3 (g)
In the above reaction, nitric acid is obtained as vapor. It is purged from the system and collected in water to obtain nitric acid solution of desired concentration. Sodium bisulfate is separated by fractional crystallization.

Chemical Properties

White colourless crystal

Uses

Magnesium nitrate hexahydrate may be used as a starting material for the synthesis of Mg-Al spinel precursors, required for the preparation of magnesium aluminate spinel (MgAl₂O₄) powder.

General Description

Magnesium nitrate hexahydrate is a hydrated magnesium salt. A mixture of magnesium nitrate hexahydrate and magnesium chloride hexahydrate has been reported as a potential phase change material (PCM) for the storage of latent thermal energy. It has been employed as a base material in this mixture to evaluate the storage and effective utilization of urban waste heat from emerged co-generation systems. Its crystals belong to the monoclinic crystal system.

Hazard

Low toxicity by ingestion. A mild skin and eye irritant.

Purification Methods

Crystallise the nitrate from water (2.5mL/g) by partial evaporation in a desiccator. It is deliquescent and is soluble in EtOH. After two recrystallisations, ACS grade salt has: metal (ppm) Ca (6.2), Fe (8.4), K (2), Mo (0.6), Na (0.8), Se (0.02).

Magnesium nitrate hexahydrate(13446-18-9)Related Product Information

• Calcium chloride hexahydrate
• Nickel(II) chloride hexahydrate
• Magnesium stearate
• Nickel chloride
• Magnesium sulfate heptahydrate
• Magnesium oxide
• Chloral hydrate
• Magnesium sulfate
• Benzylmagnesium chloride
• TERT-BUTYLMAGNESIUM CHLORIDE
• Methylmagnesium chloride
• HEXYLMAGNESIUM BROMIDE
• Ethylmagnesium bromide
• Nitric acid
• Hydrazine hydrate
• Magnesium
• SEC-BUTYLMAGNESIUM CHLORIDE
• Magnesium nitrate