SAFETY DATA SHEET

Potassium Hydroxide

Version 1Last reviewed 10 May 2023Catalogue: 20155, EMS20155

1. Identification

Product Identifiers

Product Name: Potassium Hydroxide
Other Names: Not available.
Product Number(s): 20155, EMS20155
CAS Number: 1310-58-3

Recommended use of the chemical and restriction on use

Laboratory chemicals.

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

GHS05 Corrosion
Skin Corr. 1A H314 Causes severe skin burns and eye damage.
GHS07
Acute Tox. 4 H302 Harmful if swallowed.

Label Elements

Signal Words: None
Hazard Statement(s): Harmful if swallowed.
Causes severe skin burns and eye damage.
Precautionary Statement(s): Do not breathe dusts or mists.
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
Wear protective gloves/protective clothing/eye protection/face protection.

Primary route(s) of entry

Not available.

Human Health

Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Ingestion: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. Do NOT induce vomiting.
Eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
Skin: (Or hair) Remove/take off immediately all contaminated clothing. Rinse skin with water/shower. Wash contaminated clothing before reuse.

Environment

Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

3. Composition / Information on Ingredients

No information provided.

4. First Aid Measures

Ingestion: Call for a doctor immediately.
Drink plenty of water and provide fresh air. Call for a doctor immediately.
Inhalation: In case of unconsciousness place patient stably in side position for transportation.
Skin Contact: Immediately wash with water and soap and water and rinse thoroughly.
Eye Contact: Rinse opened eye for several minutes under running water. Then consult a doctor.
Other Information: Immediately remove any clothing soiled by the product.
Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident.

5. Firefighting Measures

Suitable extinguishing equipment

Fire: Use fire extinguishing methods suitable to surrounding conditions.
HAZCHEM: No further relevant information available.

Special protective equipment and precautions for fire fighters

No special measures required.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures: Wear protective equipment. Keep unprotected persons away.
Environmental precautions: Do not allow to enter sewers/surface or ground water.
Methods and materials for containment and clean up: Use neutralising agent.
Dispose contaminated material as waste according to item 13.
Ensure adequate ventilation.

7. Handling and Storage

Precautions for safe handling: Thorough dedusting.
Conditions for safe storage: Keep container tightly sealed.

8. Exposure Controls / Personal Protection

Exposure Standards

Material	TWA ppm	TWA mg/m³	STEL ppm	STEL mg/m³
1310-58-3 Potassium Hydroxide		Peak limitation 2mg/m³	-

Engineering controls: Keep away from foodstuffs, beverages and feed.
Immediately remove all soiled and contaminated clothing.
Wash hands before breaks and at the end of work.
Avoid contact with the eyes and skin.

Personal protective equipment

Eye and face protection: Tightly sealed goggles.
Skin protection: Protective gloves. The glove material has to be impermeable and resistant to the product/the substance/the preparation. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation. The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
Body protection: Protective clothing.
Respiratory protection: Not required.

9. Physical and Chemical Properties

General information

Appearance: Colourless pellets
Odour: Odourless
pH: 13
Vapour Pressure: 0 hPa
Density: 2.044g/cm³
Boiling Point: 1384°C
Melting Point: 380°C
Solubility: 1120g/l
Specific Gravity of Density: Not available
Flash Point: Not applicable.
Flammable (Explosive) Limits: Not determined
Ignition Temperature: Not determined
Formula: KOH

10. Stability and Reactivity

Reactivity: No further relevant information available.
Chemical stability: No decomposition if used according to specifications.
Possibility of hazardous reactions: No dangerous reactions known.
Conditions to avoid: No further relevant information available.
Incompatible materials: No further relevant information available.

11. Toxicological Information

Acute effects: Oral LD50 273 mg/kg (rat)
Eye contact: Strong caustic effect.
Skin contact: Strong caustic effect on skin and mucous membranes.
Ingestion: Swallowing will lead to a strong caustic effect on mouth and throat and to the danger of perforation of oesophagus and stomach.
Inhalation: No sensitising effects known.
Toxicity and irritation: Not 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: Water hazard class 1: slightly hazardous for water.
Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.
Must not reach sewage water or drainage ditch undiluted or unneutralised.
Rinse off of bigger amounts into drains or the aquatic environment may lead to increased pH-values. A high pH-value harms aquatic organisms. In the dilution of the use-level the pH-value is considerably reduced, so that after the use of the product the aqueous waste, emptied into drains, is only low water-dangerous.

13. Disposal Considerations

General information

Must not be disposed together with household garbage. Do not allow product to reach sewage system.
Disposal must be made according to official regulations.
Recommended cleansing agents: Water, if necessary together with cleansing agents.

14. Transport Information

ADG label required

HAZCHEM: No further relevant information available.
UN Number: UN1813
Proper shipping name: 1813 POTASSIUM HYDROXIDE, SOLID, MARINE POLLUTANT
Transport hazard class: Class 8 Corrosive substances.
Packing group: II
Environmental hazard: Marine pollutant: Yes (DOT)
Special marking: Symbol (fish and tree)
Special precautions for users: Warning: Corrosive substances.
Hazard identification number (Kemler code): 80
EMS Number: F-A,S-B
Segregation groups: Alkalis
Stowage Category: A
Segregation Code: SG35 Stow " separated from" SGGI-acids
Additional information: Limited quantities (LQ) 1kg
Excepted quantities (EQ) Code: E2
Maximum net quantity per inner packaging: 30g
Maximum net quantity per outer packaging: 500g
Transport category: 2
Tunnel restriction code: E

15. Regulatory Information

Poisons Schedule Number: S5, S6, S10
Other Information: A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date: 10 May 2023
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.