Version 1Last reviewed 24 February 2026Catalogue: C230
1. Identification
Product Identifiers
Product Name
Magnesium Sulphate - DISCONTINUED
Other Names
Sulfuric acid, magnesium salt (1:1), heptahydrate.
Product Number(s)
C230
CAS Number
10034-99-8
Recommended use of the chemical and restriction on use
Laboratory use.
Company Details
ProSciTech Pty Ltd 11 Carlton Street KIRWAN QLD 4817 Australia (07) 4773 9444 pst@proscitech.com proscitech.com.au
Emergency Contact Details
ProSciTech Pty Ltd 11 Carlton Street KIRWAN QLD 4817 Australia (07) 4773 9444 pst@proscitech.com proscitech.com.au
2. Hazards Identification
Classification of the substance or mixture
Not available.
Label Elements
Signal Words
Warning
Hazard Statement(s)
May cause eye, skin, and respiratory tract irritation. The toxicological properties of this material have not been fully investigated.
Precautionary Statement(s)
Not available.
Primary route(s) of entry
Not available.
Human Health
Inhalation
May cause respiratory tract irritation. May be harmful if inhaled.
Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
Eyes
May cause eye irritation.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Environment
No further relevant information available.
3. Composition / Information on Ingredients
Name
CAS No.
Content (w/w)
Classification
Magnesium sulphate heptahydrate
10034-99-8
98±
-
4. First Aid Measures
Ingestion
Do not induce vomiting. Get medical aid if irritation or symptoms occur.
Inhalation
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
Skin Contact
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Eye Contact
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.
Other Information
Treat symptomatically and supportively.
5. Firefighting Measures
Suitable extinguishing equipment
Fire
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
HAZCHEM
Not available.
Special protective equipment and precautions for fire fighters
Substance is noncombustible. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material will not burn.
6. Accidental Release Measures
Personal precautions, protective equipment and emergency procedures
Use proper personal protective equipment as indicated in Section 8.
Environmental precautions
Do not let this chemical enter the environment.
Methods and materials for containment and clean up
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
7. Handling and Storage
Precautions for safe handling
Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Conditions for safe storage
Store in a cool, dry place. Store in a tightly closed container.
8. Exposure Controls / Personal Protection
Exposure Standards
Engineering controls
Facilities storing or utilising this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Personal protective equipment
Eye and face protection
Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin protection
Wear appropriate protective gloves to prevent skin exposure.
Body protection
Wear appropriate protective clothing to prevent skin exposure.
Respiratory protection
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
9. Physical and Chemical Properties
General information
Appearance
White solid
Odour
Odorless
pH
8.2 (5% aq.sol.)
Vapour Pressure
< 0.1 mm Hg @ 20 deg C
Density
1.678
Boiling Point
Not applicable.
Melting Point
Not applicable.
Solubility
710 g/L (20°C)
Specific Gravity of Density
Not applicable.
Flash Point
Not applicable.
Flammable (Explosive) Limits
Not applicable.
Ignition Temperature
Not applicable.
Formula
MgSO4.7H2O
10. Stability and Reactivity
Reactivity
Will not occur.
Chemical stability
Stable under normal temperatures and pressures.
Possibility of hazardous reactions
Sulfur oxides (SOx), including sulphur oxide and sulphur dioxide, oxides of magnesium
Strong oxidising agents, explosive when heated with ethoxyethynl alcohols.
11. Toxicological Information
Acute effects
LD50/LC50:
Not available.
Not available
Eye contact
No further relevant information available.
Skin contact
No further relevant information available.
Ingestion
No further relevant information available.
Inhalation
No further relevant information available.
Toxicity and irritation
No further relevant information available.
12. Ecological Information
Ecotoxicity
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Other adverse effects
No further relevant information available.
13. Disposal Considerations
General information
Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
14. Transport Information
ADG label required
HAZCHEM
Not available.
UN Number
None.
Proper shipping name
Not regulated.
Transport hazard class
0
Packing group
None.
Environmental hazard
Do not let this chemical enter the environment.
Special precautions for users
No information available.
Additional information
No information available.
15. Regulatory Information
Poisons Schedule Number
Not listed.
Other Information
No further relevant information available.
16. Other Information
SDS preparation date
24 February 2026
Comments
This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.