Fertilizer Chemicals


POTASSIUM SULFATE Material Datasheet

1. Identification of the substance/mixture

1.1.  Product identifier
Product name : Potassium Sulfate Chemical family : Inorganic compound
1.2.  Relevant identified uses of the substance or mixture and advised against
Identified uses : Fertilizer for chloride sensitive crops such as : tobacco, tea, pineapple, potato, tomato, grape, guava, orange, apple, watermelon, star fruit, citrus, papaya, other fruits and vegetables, Manufacture of Potash Alum, Manufacture of Gypsum Cement, Manufacture of Glass


2. Hazard Identification

No hazardous product as specified in Directive 67/548/EEC


3. Composition / information on ingredients

Formula:K2SO4 K2O4S (Hill)
CAS No.:7778-80-5
EC No.:231-915-5
Molar mass:174.26 g/mol


4. First aid measures

After inhalation : fresh air.
After skin contact : wash off with plenty of water. Remove contaminated clothing.
After eye contact: rinse out with plenty of water.
After swallowing : make victim drink water. Consult doctor if feeling unwell


5. Fire-fighting measures

Suitable Extinguishing media
use extinguishing measures that are appropriate to local circumstances and the surrounding environment.
Special hazards during fire fighting
No combustible. Ambient fire may liberate hazardous vapours.
Fire may cause evolution of : sulphur oxides.
Special protective equipment for fire fighters
in the event of fire, wear self-contained breathing apparatus.

6. Accidental release measures

Personal precautions
Avoid substance contact. Avoid inhalation of dusts. Ensure adequate ventilation
Environmental precautions
Do not empty into drains
Methods for cleaning up
Take up dry. Forward for disposal. Clean up affected area. Avoid generation of dusts.


7. Handling and storage

No further requirement

Tightly closed. Dry


8. Exposure controls/personal protection

Respiratory protection
Required when dusts are generated.

Eye protection 
Safety glasses

Hygiene measures
Change contamined clothing. Wash hands after working with substance.


9. Physical and chemical properties

9.1. Informationonbasicphysicalandchemicalproperties

pH(20 oC)
Viscocity, dynamic
Melting point
Boiling point/boiling range
Ignition temperature
Flash point
Oxidizing properties
Lower explosion limit
Upper explosion limit
Vapour pressure
Relative vapour density
Bulk Density
below 7 at 50 g/l
no data available
1,069 °C
1,689 °C at 1,013 hPa
not applicable
not applicable
no data available
no data available
not applicable
not applicable
no data available
not applicable
2.66 g/cm3 at 20 °C
ca. 1,200 kg/m3

9.2 Other data

Water solubility
Partition coefficient: n- Octanol/water
Evaporation rate
 no data available
110 g/l at 20 °C
not applicable
no data available


10. Stability and reactivity

Conditions to avoid
Strong heating

Materials to avoid
Increased reactivity with:
Aluminium, in powder form, heat.
Magnesium, heat

Risks of explosion with:
Sodium, acetylidene

Hazardous decomposition products
In the event of fire, see chapter 5.

11. Toxicological information

Acute oral toxicity 
LD50 rat
Dose: 6.600 mg/kg

Further information
After uptake of large quantities:
Symptoms in:
Gastrointestinal tract

Handle in accordance with good industrial hygiene and safety practice.


12. Ecological information

Toxicity to fish
Species: Pimephales promelas (fathead minnow)
Dose: 680 mg/l
Exposure time: 96 h
(ECOTOX database)

Toxicity to daphnia and other aquatic invertebrates.

Species: Daphnia Magna (Water flea)
Dose: 890 mg/l
Exposure time: 48 h

Toxicity to algae
Species. Desmodesmus subspicatus (green algae)
Dose: 2,900 mg/l
Exposure time: 72 h

Partition coefficient: n-octanol/water
Not applicable

Additional ecological information
Do not allow to enter waters, waste water, or soil


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.

14. Transport information

No classified as dangerous in the meaning of transport regulations.

15. Regulatory information

Not dangerous substance according to GHS

CAS-No. 7778-80-5

Labelling according to EC Directives
The product does not need to be labeled in accordance with EC directives or respective national laws.
EC-No. 231-915-5

16. Other information

The information accumulated here in is believed to be accurate but is not warranted to be whether originating with the company or not.

Health and safety data sheet should be used only as a guide to the safe handling of the product, and is not intended as a technical specification. 


POTASSIUM SULFATE Product Information

Product Identification

Product Name Potassium Sulfate
Chemical Formula  K2SO4
Synonym Dipotassium Sulfate, Sulphate of Potash
Registrations CAS-Nr. 7778-80-5
Appearance white crystalline powder


25 or 50 kg net in OPP Woven laminated bag or PP woven bag with PE inner, 1000 kg net in PP jumbo bag



for chloride sensitive crops such as : tobacco, tea, pineapple, potato, tomato, grape, guava, orange, apple, watermelon, star fruit, citrus, papaya, other fruits and vegetables

Manufacture of Potash Alum

Manufacture of Gypsum Cement

Manufacture of Glass




Product Specifications

Potassium Oxide (K2O)

Sulfur Trioxide (SO3)

Chloride (Cl)

Free acid (as H2SO4)

Moisture (H2O)






50 min

42.5 min

2.0 max

2.5 max

0.5 max


Testing method :SNI 2809:2014


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