Magnesium chloride hexahydrate

  • Bischofite
Formula
MgCl2.6H2O
Structure
Description
white hygroscopic crystals

Registry Numbers and Inventories.
CAS
7791-18-6
EC (EINECS/ELINCS)
232-094-6
S 22 24/25
RTECS
OM2975000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
Merck
13,5684
Beilstein/Gmelin
56566 (G)
Swiss Giftliste 1
G-4785
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
Cl2Mg . 6 H2O
Formula mass
203.30
Melting point, °C
117
Boiling point, °C
1412
Density
1.5693 g/cm3 (17 C)
Solubility in water
1670 g/L (20 C)
Thermal expansion
0.0001072/K
Heat of fusion
33.90 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water.
Handling
Wash hands before eating. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Hydrogen chloride, chlorine.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
5
Exposure effects
May cause kidney damage.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause kidney damage.
   Inhalation
May cause respiratory tract irritation. Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count.
   Skin
May cause skin irritation.
   Eyes
May cause mild eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
HS Code
2827 31 00