Potassium

98% For Laboratory Use
CAS Number
7440-09-7
HSN Code
28051900
Molecular Formula
K
Catalogue Number
AL01219
Purity
≥ 98%
Molecular Weight
39.10 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Soft silvery-white metal lumps
Shelf Life -
Packaging Stored under liquid paraffin in sealed containers
Storage Store in a cool, dry place under inert atmosphere or oil to prevent reaction with moisture.

Potassium metal lumps (98%, in liquid paraffin) is a highly reactive elemental metal that is essential in various chemical applications. With a purity of 98%, this product is notable for its ability to react vigorously with water and moisture, making it necessary to store it under oil to prevent unwanted reactions. Potassium is classified as an alkali metal and is known for its low density and high reactivity, particularly with halogens and water. This product is particularly useful in laboratory settings and industrial applications where strong reducing agents are required.

Also known as Kalium.

Catalogue No.
AL01219
CAS Number
7440-09-7
Molecular Formula
K
Molecular Weight
39.10 g/mol
HSN Code
28051900
Grade
98%
Product Form
Substance

Potassium metal appears as soft, silvery-white lumps that are stored submerged in liquid paraffin to prevent exposure to air and moisture. It has a melting point of 63.5 °C and a boiling point of 759 °C. The density of potassium is approximately 0.86 g/cm³, making it one of the lightest metals. It is insoluble in water and most organic solvents, but it reacts vigorously with water, producing potassium hydroxide and hydrogen gas. The metal has a characteristic metallic odor when freshly cut, and it can tarnish quickly when exposed to air.

Appearance
Soft silvery-white metal lumps
Shelf Life
-
Packaging
Stored under liquid paraffin in sealed containers
Storage
Store in a cool, dry place under inert atmosphere or oil to prevent reaction with moisture.

1.1 — Product identifier

Chemical Name
Potassium
Catalogue No.
AL01219
Product form
Substance
CAS Number
7440-09-7
EC Number
231-121-8
Grade
98%
EC Index Number
Potassium, metal
Chemical Formula
K
HSN Code
28051900
Synonyms
Kalium

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Used as a strong reducing agent and in inorganic chemistry research.
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.3 — Other hazards

Other hazards
Dangerous when wet; can ignite spontaneously in contact with moisture.

3.1 — Substance

Name
Potassium
CAS No.
7440-09-7

4.1 — Description of first aid measures

First-aid measures after inhalation
Move to fresh air. Seek medical attention if symptoms persist.
First-aid measures after skin contact
Wash with plenty of soap and water. Seek medical attention if irritation develops.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention.
First-aid measures after ingestion
Do not induce vomiting. Rinse mouth and seek medical attention immediately.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Burns to skin and eyes, respiratory distress if inhaled, gastrointestinal irritation if ingested.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
Reacts violently with water, producing flammable hydrogen gas.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Evacuate area and eliminate all sources of ignition. Contain spill and prevent entry into waterways.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Use appropriate protective equipment. Absorb with inert material and place in a chemical waste container.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Handle under inert atmosphere or oil. Use appropriate personal protective equipment (PPE).
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Store in a cool, dry place under oil or inert atmosphere.

8.2 — Exposure controls

Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection when handling in poorly ventilated areas.

9.1 — Information on basic physical and chemical properties

Physical state
Solid
Colour
Silvery-white
Odour
Metallic
Odour threshold
Not applicable
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
63.5 °C
Freezing point
Not applicable
Boiling point
759 °C
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not applicable
Flammability (solid, gas)
Flammable
Vapour pressure
Not applicable
Relative vapour density at 20°C
Not applicable
Density
0.86 g/cm³
Solubility
Insoluble in water; reacts violently with water
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not applicable
Oxidising properties
Not applicable
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Highly reactive, especially with water and moisture.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
No dangerous reactions known under normal conditions of use.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Water, acids, halogens, oxidizing agents.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Not specified

11.1 — Information on toxicological effects

Acute toxicity
Not classified as acutely toxic, but can cause severe burns.
Skin corrosion/irritation
Causes severe skin burns.
Serious eye damage/irritation
Causes serious eye damage.
Respiratory or skin sensitisation
Not a skin sensitizer.
Germ cell mutagenicity
Not classified
Carcinogenicity
Not classified
Specific target organ toxicity (single exposure)
Not classified as a specific target organ toxicant.
Specific target organ toxicity (repeated exposure)
Not classified

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
2257
UN-No. (IMDG)
2257
UN-No. (IATA)
2257
UN-No. (ADN)
2257
UN-No. (RID)
2257

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Potassium, metal
Proper Shipping Name (IMDG)
Potassium, metal
Proper Shipping Name (IATA)
Potassium, metal
Proper Shipping Name (ADN)
Potassium, metal
Proper Shipping Name (RID)
Potassium, metal

14.3 — Transport hazard class(es)

Transport hazard class(es)
4.3

14.4 — Packing group

Packing group (ADR)
I
Packing group (IMDG)
I
Packing group (IATA)
I
Packing group (ADN)
I
Packing group (RID)
I

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations
Not specified

Potassium metal is widely used as a strong reducing agent in various chemical reactions, particularly in organic synthesis and inorganic chemistry research. It serves as a reference alkali metal for studies involving alkali metals and their compounds. Additionally, potassium is utilized in the production of potassium hydroxide, which is an important industrial chemical. Its reactivity also makes it valuable in the preparation of other potassium compounds and in the synthesis of organometallic compounds. Industries such as pharmaceuticals, agriculture, and materials science benefit from the unique properties of potassium metal.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL01219
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
39.10 g/mol
Test Standard Observed
Assay Purity ≥ 98% 98.5%
Moisture Content ≤ 0.5% 0.3%
Residue on Ignition Not applicable Not applicable
Related Substances None detected None detected
Solubility Insoluble in water Insoluble in water

The above product is expected to comply with 98% grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
98% ≥ 98% 63.5 °C / 759 °C ≤ 0.5% Not applicable None detected Insoluble in water
View full Technical Data Sheet

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