MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 1 of 8
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
MAGNESIUM SULFATE, HEPTAHYDRATE
SYNONYMS
Mg-SO4.7H2O, "epsom salts", "magnesium sulfate", "magnesium sulphate
heptahydrate"
PRODUCT USE
Used in weighting cotton and silk; increasing the bleaching action of
chlorinated lime; manufacture of mother-of-pearl and frosted papers;
fire-proofing fabrics; dyeing and printing calicos; in fertilisers. Used in
explosives, matches, mineral water, tanning leather and dietry supplements.
SUPPLIER
Quantum Chemicals Pty Ltd
70 Quantum Close
Quantum Industrial Park
Dandenong South VIC 3175
Australia
Telephone: 1300 782 688
Emergency Tel: 1300 131 001
Fax: 1300 782 699
HAZARD RATINGS
Flammability
Toxicity
Body Contact
Reactivity
Chronic
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
Section 2 - HAZARDS IDENTIFICATION
STATEMENT OF HAZARDOUS NATURE
NON-HAZARDOUS SUBSTANCE. NON-DANGEROUS GOODS. According to
the Criteria of NOHSC, and the ADG Code.
POISONS SCHEDULE
None
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 2 of 8
Section 2 - HAZARDS IDENTIFICATION
RISK
Ingestion may produce health damage*.
May produce discomfort of the eyes*.
* (limited evidence).
SAFETY
Do not breathe dust.
Wear eye/face protection.
Take off immediately all contaminated clothing.
In case of contact with eyes, rinse with plenty of water and contact Doctor or
Poisons Information Centre.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
magnesium sulfate, heptahydrate 10034-99-8 >95
Section 4 - FIRST AID MEASURES
SWALLOWED
鈥? Immediately give a glass of water.
鈥? First aid is not generally required. If in doubt, contact a Poisons
Information Centre or a doctor.
EYE
If this product comes in contact with the eyes:
鈥? Wash out immediately with fresh running water.
鈥? Ensure complete irrigation of the eye by keeping eyelids apart and away from
eye and moving the eyelids by occasionally lifting the upper and lower lids.
鈥? If pain persists or recurs seek medical attention.
鈥? Removal of contact lenses after an eye injury should only be undertaken by
skilled personnel.
SKIN
If skin or hair contact occurs:
鈥? Flush skin and hair with running water (and soap if available).
鈥? Seek medical attention in event of irritation.
INHALED
鈥? If fumes or combustion products are inhaled remove from contaminated area.
鈥? Lay patient down. Keep warm and rested.
鈥? Prostheses such as false teeth, which may block airway, should be removed,
where possible, prior to initiating first aid procedures.
鈥? Apply artificial respiration if not breathing, preferably with a demand valve
resuscitator, bag-valve mask device, or pocket mask as trained. Perform CPR if
necessary.
鈥? Transport to hospital, or doctor.
NOTES TO PHYSICIAN
Magnesium is present in the blood, as a normal constituent, at concentrations
between 1.6 to 2.2 meq/l. Some 30% is plasma bound. At serum magnesium levels of
3-4 mEq/l, signs of CNS depression, loss of reflexes, muscular tone and power,
and bradycardia occur. Cardiac arrest (sometimes fatal) and/or respiratory
paralysis can occur at plasma levels of 10-15 meq/l. For acute or short term
repeated exposures to magnesium;
鈥? Symptomatic hypermagnesaemia appears rarely in the absence of intestinal or
renal disease.
鈥? Elevated magnesium levels may cause hypocalcaemia because of decreased
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 3 of 8
Section 4 - FIRST AID MEASURES
parathyroid hormone activity and decreased end-organ responsiveness.
鈥? Patients with severe hypermagnesemia may develop sudden respiratory arrest and
must be watched closely for apnoea.
鈥? Use fluids, then vasopressors for hypotension. Frequently hypotension responds
to calcium administration.
鈥? Induce emesis or administer lavage if patient presents within 4 hours of
ingestion. Use sodium cathartics, with caution, in presence of cardiac or renal
failure.
鈥? Activated charcoal is not useful.
鈥? Calcium is an antagonist of magnesium action and is an effective antidote when
serum levels exceed 5MEg/L and the patient exhibits symptoms The adult dose of
calcium gluconate is 10 ml of a 10% solution over several minutes. [Ellenhorn
and Barceloux: Medical Toxicology].
Section 5 - FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA
鈥? There is no restriction on the type of extinguisher which may be used.
Use fire fighting procedures suitable for surrounding area.
FIRE FIGHTING
鈥? Alert Fire Brigade and tell them location and nature of hazard.
鈥? Wear breathing apparatus plus protective gloves for fire only.
鈥? Prevent, by any means available, spillage from entering drains or water
courses.
鈥? Use fire fighting procedures suitable for surrounding area.
鈥? DO NOT approach containers suspected to be hot.
鈥? Cool fire exposed containers with water spray from a protected location.
鈥? If safe to do so, remove containers from path of fire.
鈥? Equipment should be thoroughly decontaminated after use.
FIRE/EXPLOSION HAZARD
鈥? Non combustible.
鈥? Not considered a significant fire risk, however containers may burn.
Decomposes on heating and produces toxic fumes of sulfur oxides (SOx).
FIRE INCOMPATIBILITY
None known.
HAZCHEM
None
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES
MINOR SPILLS
鈥? Clean up all spills immediately.
鈥? Avoid contact with skin and eyes.
鈥? Wear impervious gloves and safety glasses.
鈥? Use dry clean up procedures and avoid generating dust.
鈥? Sweep up or
鈥? Vacuum up (consider explosion-proof machines designed to be grounded during
storage and use).
鈥? Place spilled material in clean, dry, sealable, labelled container.
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 4 of 8
Section 6 - ACCIDENTAL RELEASE MEASURES
MAJOR SPILLS
鈥? Clear area of personnel and move upwind.
鈥? Alert Fire Brigade and tell them location and nature of hazard.
鈥? Control personal contact by using protective equipment and dust respirator.
鈥? Prevent spillage from entering drains, sewers or water courses.
鈥? Recover product wherever possible. Avoid generating dust.
鈥? Sweep / shovel up.
鈥? If required, wet with water to prevent dusting.
鈥? Put residues in labelled plastic bags or other containers for disposal.
鈥? Wash area down with large quantity of water and prevent runoff into drains.
鈥? If contamination of drains or waterways occurs, advise emergency services.
EMERGENCY RESPONSE PLANNING GUIDELINES (ERPG)
The maximum airborne concentration below which it is believed that nearly all
individuals could be exposed for up to one hour WITHOUT experiencing or developing
life-threatening health effects is:
magnesium sulfate, heptahydrate 500 mg/m鲁
irreversible or other serious effects or symptoms which could
impair an individual's ability to take protective action is:
magnesium sulfate, heptahydrate 100 mg/m鲁
other than mild, transient adverse effects
without perceiving a clearly defined odour is:
magnesium sulfate, heptahydrate 15 mg/m鲁
The threshold concentration below which most people.
will experience no appreciable risk of health effects:
magnesium sulfate, heptahydrate 5 mg/m鲁
American Industrial Hygiene Association (AIHA)
Ingredients considered according to the following cutoffs
Very Toxic (T+) >= 0.1% Toxic (T) >= 3.0%
R50 >= 0.25% Corrosive (C) >= 5.0%
R51 >= 2.5%
else >= 10%
where percentage is percentage of ingredient found in the mixture
SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS
___________________________________________
+ + + + + +
___________________________________________
+: May be stored together
O: May be stored together with specific preventions
X: Must not be stored together
Personal Protective Equipment advice is contained in Section 8 of the MSDS.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
鈥? Limit all unnecessary personal contact.
鈥? Wear protective clothing when risk of exposure occurs.
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 5 of 8
Section 7 - HANDLING AND STORAGE
鈥? Use in a well-ventilated area.
鈥? When handling DO NOT eat, drink or smoke.
鈥? Always wash hands with soap and water after handling.
鈥? Avoid physical damage to containers.
鈥? Use good occupational work practice.
鈥? Observe manufacturer's storing and handling recommendations.
SUITABLE CONTAINER
Glass container.
Plastic drum.
Plastic bag
NOTE: Bags should be stacked, blocked, interlocked, and limited in height so
that they are stable and secure against sliding or collapse.
Polyethylene or polypropylene container.
Metal can.
Metal drum.
鈥? Check that containers are clearly labelled.
STORAGE INCOMPATIBILITY
None known.
STORAGE REQUIREMENTS
Keep dry.
鈥? Store in original containers.
鈥? Keep containers securely sealed.
鈥? Store in a cool, dry, well-ventilated area.
鈥? Store away from incompatible materials and foodstuff containers.
鈥? Protect containers against physical damage and check regularly for leaks.
鈥? Observe manufacturer's storing and handling recommendations.
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
Source Material TWA TWA STEL STEL Peak Peak
ppm mg/m鲁 ppm m5/m鲁 ppm mg/m鲁
_________________________ ________________ _____ _____ _____ _____ _____ _____
Australia Exposure magnesium 10
Standards sulfate,
heptahydrate
The following materials had no OELs on our record under the following CAS or Chemwatch (CW) numbers
magnesium sulfate, heptahydrate: No data available for CAS:10034-99-8 CAS:7487-88-9
Not available. Refer to individual constituents.
PERSONAL PROTECTION
EYE
No special equipment for minor exposure i.e. when handling small quantities.
鈥? OTHERWISE:
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 6 of 8
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
鈥? Safety glasses with side shields.
鈥? Contact lenses may pose a special hazard; soft contact lenses may absorb and
concentrate irritants. A written policy document, describing the wearing of lens
or restrictions on use, should be created for each workplace or task. This
should include a review of lens absorption and adsorption for the class of
chemicals in use and an account of injury experience. Medical and first-aid
personnel should be trained in their removal and suitable equipment should be
readily available. In the event of chemical exposure, begin eye irrigation
immediately and remove contact lens as soon as practicable. Lens should be
removed at the first signs of eye redness or irritation - lens should be removed
in a clean environment only after workers have washed hands thoroughly. [CDC
NIOSH Current Intelligence Bulletin 59].
HANDS/FEET
No special equipment needed when handling small quantities.
OTHERWISE: Wear general protective gloves, eg. light weight rubber gloves.
OTHER
No special equipment needed when handling small quantities
OTHERWISE:
鈥? Overalls
鈥? Eyewash unit.
RESPIRATOR
Protection Factor Half-Face Full-Face Powered Air
Respirator Respirator Respirator
10 x ES P1 Air-line* -- PAPR-P1 -
50 x ES Air-line** P2 PAPR-P2
100 x ES - P3 -
Air-line* -
100+ x ES - Air-line** PAPR-P3
* - Negative pressure demand ** - Continuous flow.
The local concentration of material, quantity and
conditions of use determine the type of personal
protective equipment required.
For further information consult site specific
CHEMWATCH data (if available), or your
Occupational Health and Safety Advisor.
ENGINEERING CONTROLS
General exhaust is adequate under normal operating conditions.
If exposure to workplace dust is not controlled, respiratory protection is
required; wear SAA approved dust respirator.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE
Colourless, rhombic or monoclinic crystals; freely soluble in water.
Odourless or almost odourless and saline, bitter taste. Slightly soluble in
alcohol, glycerol.
Solubility in water @ 20 deg.C: 70 g/100 cc.
@ 40 deg.C: 91 g/100 cc.
Melting point: -6H2O @ 150 deg.C
Boiling point: -7H2O @ 200 deg.C
PHYSICAL PROPERTIES
Solid.
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 7 of 8
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Mixes with water.
Molecular Weight: 246.47 Boiling Range (掳C): Not available.
Melting Range (掳C): Not available. Specific Gravity (water=1): 1.68
Solubility in water (g/L): Miscible pH (as supplied): Not applicable
pH (1% solution): Not available Vapour Pressure (kPa): Not applicable.
Volatile Component (%vol): Not applicable. Evaporation Rate: Not applicable
Relative Vapour Density (air=1): Not applicable. Flash Point (掳C): Non flammable
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not available. Decomposition Temp (掳C): Not available.
State: Divided solid
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
Product is considered stable and hazardous polymerisation will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
The material is moderately discomforting to the gastro-intestinal tract and may
be harmful if swallowed in large quantity.
Small amounts or low dose rates are regarded as practically non-harmful.
Sulfates are not well absorbed orally, but can cause diarrhoea.
Magnesium salts are generally absorbed so slowly that oral administration causes
few toxic effects, as the dose is readily expelled via the bowel. If evacuation
fails, mucosal irritation and absorption may result. This can result in nervous
system depression, heart effects, loss of reflexes and death due to paralysis of
breathing. These usually do not occur unless the bowel or kidneys are damaged.
EYE
The dust may produce eye discomfort and abrasive eye inflammation.
SKIN
The material may be slightly discomforting to the skin if exposure is prolonged.
INHALED
The dust may be discomforting to the upper respiratory tract.
Persons with impaired respiratory function, airway diseases and conditions such
as emphysema or chronic bronchitis, may incur further disability if excessive
concentrations of particulate are inhaled.
CHRONIC HEALTH EFFECTS
Principal routes of exposure are by accidental skin and eye contact and
inhalation of generated dusts.
TOXICITY AND IRRITATION
TOXICITY IRRITATION
Oral (man) TDLo: 183 mg/kg/4h-I Nil Reported
MAGNESIUM SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 12-May-2005 CHEMWATCH 10490
A317TC CD 2006/2 Page 8 of 8
Section 12 - ECOLOGICAL INFORMATION
No data for magnesium sulfate, heptahydrate.
Section 13 - DISPOSAL CONSIDERATIONS
Recycle wherever possible.
Bury residue in an authorised landfill.
Recycle containers if possible, or dispose of in an authorised landfill.
Section 14 - TRANSPORTATION INFORMATION
HAZCHEM
None
NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS:UN,IATA,IMDG
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE
None
REGULATIONS
magnesium sulfate, heptahydrate (CAS: 10034-99-8) is found on the following
regulatory lists;
Australia Inventory of Chemical Substances (AICS)
OECD Representative List of High Production Volume (HPV) Chemicals
Section 16 - OTHER INFORMATION
This document is copyright. Apart from any fair dealing for the purposes of
private study, research, review or criticism, as permitted under the Copyright
Act, no part may be reproduced by any process without written permission from
CHEMWATCH. TEL (+61 3) 9572 4700.
Issue Date: 12-May-2005
Print Date: 28-Jun-2006
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