MSDS Number: M0156 * * * * * Effective Date: 08/02/07 * * * * *
Supercedes: 11/04/04

MAGNESIUM CHLORIDE

1. Product Identification

Synonyms: Magnesium chloride, hexahydrate; Magnesium
chloride, 6-hydrate, crystal
CAS No.: 7786-30-3 (Anhydrous);
7791-18-6 (Hexahydrate)
Molecular Weight: 203.30
Chemical
Formula: MgCl2 6H2O
Product Codes:
J.T. Baker: 2444, 2448,
2449, 2450, 4003
Mallinckrodt: 12131, 5910, 5933, 5954, 5956, 5958, 5960,
7550, 7791

2. Composition/Information on Ingredients

Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------

Magnesium Chloride 7786-30-3 98 - 100% Yes

3. Hazards Identification

Emergency Overview
--------------------------

CAUTION! MAY BE HARMFUL IF SWALLOWED.

SAF-T-DATA(tm) Ratings (Provided here for your
convenience)

-----------------------------------------------------------------------------------------------------------

Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity
Rating: 1 - Slight
Contact Rating: 1 - Slight
Lab Protective Equip:
GOGGLES; LAB COAT; PROPER GLOVES
Storage Color Code: Green (General
Storage)

Potential Health Effects
----------------------------------

Inhalation:
Inhalation of dust may cause mild irritation to
the mucous membranes.
Ingestion:
Since magnesium salts are
slowly absorbed, abdominal pain, vomiting and diarrhea may be the only
symptoms. However, if elimination is blocked by bowel blockage or other
reasons, CNS depression, lack of reflexes, hypocalcemia (deficiency of calcium
in the blood) may occur.
Skin Contact:
No adverse effects
expected but may cause minor skin irritation.
Eye Contact:
No
adverse effects expected but dust may cause mechanical irritation.

Chronic Exposure:
No information found.
Aggravation of
Pre-existing Conditions:
No information found.

4. First Aid Measures

Inhalation:
Remove to fresh air. Get medical attention
for any breathing difficulty.
Ingestion:
Give several glasses
of water to drink to dilute. If large amounts were swallowed, get medical
advice.
Skin Contact:
Remove any contaminated clothing. Wash
skin with soap and water for at least 15 minutes. Get medical attention if
irritation develops or persists.
Eye Contact:
Wash thoroughly
with running water. Get medical advice if irritation develops.

Note
to Physician:
IV administration of calcium gluconate will partially
reverse the effects of acute magnesium toxicity. Ventricular support with
calcium chloride infusion and mannitol forced diuresis has also been
successful.

5. Fire Fighting Measures

Fire:
Not considered to be a fire hazard.

Explosion:
Not considered to be an explosion hazard. At room
temperature the addition of magnesium chloride to furan-2-peroxycarboxylic
acid, will cause the acid to explode.
Fire Extinguishing Media:

Use any means suitable for extinguishing surrounding fire.
Special
Information:
In the event of a fire, wear full protective clothing and
NIOSH-approved self-contained breathing apparatus with full facepiece operated
in the pressure demand or other positive pressure mode.

6. Accidental Release Measures

Ventilate area of leak or spill. Wear appropriate personal
protective equipment as specified in Section 8. Spills: Sweep up and
containerize for reclamation or disposal. Vacuuming or wet sweeping may be
used to avoid dust dispersal.

7. Handling and Storage

Keep in a tightly closed container, stored in a cool, dry,
ventilated area. Protect against physical damage. Isolate from incompatible
substances. Containers of this material may be hazardous when empty since they
retain product residues (dust, solids); observe all warnings and precautions
listed for the product.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits:
None established.

Ventilation System:
A system of local and/or general exhaust is
recommended to keep employee exposures as low as possible. Local exhaust
ventilation is generally preferred because it can control the emissions of the
contaminant at its source, preventing dispersion of it into the general work
area. Please refer to the ACGIH document, Industrial Ventilation, A Manual
of Recommended Practices, most recent edition, for details.

Personal Respirators (NIOSH Approved):
For conditions of use
where exposure to dust or mist is apparent and engineering controls are not
feasible, a particulate respirator (NIOSH type N95 or better filters) may be
worn. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are
present, use a NIOSH type R or P filter. For emergencies or instances where
the exposure levels are not known, use a full-face positive-pressure,
air-supplied respirator. WARNING: Air-purifying respirators do not protect
workers in oxygen-deficient atmospheres.
Skin Protection:
Wear
protective gloves and clean body-covering clothing.
Eye Protection:

Use chemical safety goggles. Maintain eye wash fountain and quick-drench
facilities in work area.

9. Physical and Chemical Properties

Appearance:
Colorless flakes or crystals.

Odor:
Odorless.
Solubility:
167g/100ml water @
20C (68F)
Density:
1.57
pH:
5% in water is
neutral to litmus.
% Volatiles by volume @ 21C (70F):
0

Boiling Point:
Not applicable.
Melting Point:

118C (244F)
Vapor Density (Air=1):
No information found.

Vapor Pressure (mm Hg):
No information found.

Evaporation Rate (BuAc=1):
No information found.

10. Stability and Reactivity

Stability:
Stable under ordinary conditions of use and
storage. By strong ignition is converted into oxychloride.
Hazardous
Decomposition Products:
When heated to decomposition it emits
corrosive hydrochloric acid vapor. When heated to temperatures above 300C
(572F) it emits toxic fumes of chlorine gas.
Hazardous
Polymerization:
Will not occur.
Incompatibilities:

Furan-2-peroxycarboxylic acid. Strong oxidizing agents will release
chlorine.
Conditions to Avoid:
Heat, moisture, incompatibles.

11. Toxicological Information

Oral rat LD50: 8100mg/kg. Investigated as a mutagen.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Magnesium Chloride (7786-30-3) No No None

12. Ecological Information

Environmental Fate:
No information found.

Environmental Toxicity:
No information found.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be
managed in an appropriate and approved waste disposal facility. Processing,
use or contamination of this product may change the waste management options.
State and local disposal regulations may differ from federal disposal
regulations. Dispose of container and unused contents in accordance with
federal, state and local requirements.

14. Transport Information

Not regulated.

15. Regulatory Information

--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Magnesium Chloride (7786-30-3) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Magnesium Chloride (7786-30-3) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Magnesium Chloride (7786-30-3) No No No No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Magnesium Chloride (7786-30-3) No No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Solid)

Australian Hazchem Code: None allocated.

Poison Schedule: None allocated.
WHMIS:
This MSDS
has been prepared according to the hazard criteria of the Controlled Products
Regulations (CPR) and the MSDS contains all of the information required by the
CPR.

16. Other Information

NFPA Ratings: Health: 1 Flammability: 0
Reactivity: 0
Label Hazard Warning:
CAUTION! MAY BE
HARMFUL IF SWALLOWED.
Label Precautions:
Keep container
closed.
Wash thoroughly after handling.
Label First Aid:
If
swallowed, give large amounts of water to drink. Never give anything by mouth
to an unconscious person. Get medical attention.
Product Use:

Laboratory Reagent.
Revision Information:
No Changes.

Disclaimer:

************************************************************************************************

Mallinckrodt Baker, Inc. provides the information contained herein in
good faith but makes no representation as to its comprehensiveness or
accuracy. This document is intended only as a guide to the appropriate
precautionary handling of the material by a properly trained person using this
product. Individuals receiving the information must exercise their independent
judgment in determining its appropriateness for a particular purpose.
MALLINCKRODT BAKER, INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE
INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS.
ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES
RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.

************************************************************************************************

Prepared by: Environmental Health & Safety
Phone Number:
(314) 654-1600 (U.S.A.)