Potassium Hydroxide

AR 85% For Laboratory Use
CAS Number
1310-58-3
HSN Code
28152000
Molecular Formula
KOH
Catalogue Number
AL01244
Purity
85% KOH
Molecular Weight
56.11 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 White to off-white pellets
Shelf Life -
Packaging -
Storage Store in a cool, dry place, in a tightly closed container to prevent moisture absorption.

POTASSIUM HYDROXIDE Pellets 85% AR is a high-purity analytical reagent known for its strong basic properties. This AR-grade potassium hydroxide is produced with stringent quality controls to ensure its suitability for precise analytical applications. It is commonly used in various laboratory settings, particularly in titrations and as a standard for pH adjustments. The pellets are hygroscopic, meaning they readily absorb moisture from the air, which necessitates careful storage to maintain their integrity.

Also known as Caustic Potash, Potash Lye.

Catalogue No.
AL01244
CAS Number
1310-58-3
Molecular Formula
KOH
Molecular Weight
56.11 g/mol
HSN Code
28152000
Grade
AR 85%
Product Form
Substance

The product appears as white to off-white pellets, which are solid at room temperature. Potassium hydroxide has a melting point of approximately 360 °C and a boiling point of around 1320 °C. It is highly soluble in water, with a solubility of about 1 g in 0.5 mL of water at 20 °C, and it generates heat upon dissolution. The density of potassium hydroxide pellets is approximately 2.04 g/cm³. Due to its hygroscopic nature, it can absorb moisture from the environment, which can affect its handling and storage.

Appearance
White to off-white pellets
Shelf Life
-
Packaging
-
Storage
Store in a cool, dry place, in a tightly closed container to prevent moisture absorption.

1.1 — Product identifier

Chemical Name
Potassium Hydroxide
Catalogue No.
AL01244
Product form
Substance
CAS Number
1310-58-3
EC Number
215-181-3
Grade
AR 85%
EC Index Number
Potassium Hydroxide
Chemical Formula
KOH
HSN Code
28152000
Synonyms
Caustic Potash, Potash Lye

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

Use of the substance/mixture
Used as a strong base in analytical chemistry and various industrial applications.
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
Corrosive to metals; may cause severe skin burns and eye damage.

3.1 — Substance

Name
Potassium Hydroxide
CAS No.
1310-58-3

4.1 — Description of first aid measures

First-aid measures after inhalation
Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention immediately.
First-aid measures after skin contact
Remove contaminated clothing and rinse skin with plenty of water for at least 15 minutes. Seek medical attention if irritation persists.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention immediately.
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
Burning sensation, coughing, shortness of breath, redness, and pain in affected areas.

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
Non-flammable, but may react with water to produce heat and caustic solutions.

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
Contain spill and neutralize with dilute acid. Avoid water contact.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Wear appropriate protective equipment. Sweep up and place in a suitable container for disposal.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Use personal protective equipment such as gloves and goggles. Avoid contact with skin and eyes.
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, away from incompatible materials such as acids and moisture.

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 if dust or mist is generated.

9.1 — Information on basic physical and chemical properties

Physical state
Solid
Colour
White to off-white
Odour
Odourless
Odour threshold
Not applicable
pH value
14 (1M solution)
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
360 °C
Freezing point
Not applicable
Boiling point
1320 °C
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not applicable
Flammability (solid, gas)
Non-flammable
Vapour pressure
Not applicable
Relative vapour density at 20°C
Not applicable
Density
2.04 g/cm³
Solubility
Highly soluble in 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
Reacts violently with acids and is exothermic when mixed with water.

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
Acids, organic materials, and moisture.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Not specified

11.1 — Information on toxicological effects

Acute toxicity
Oral LD50 (rat) 333 mg/kg.
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)
May cause respiratory irritation.
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)
1813
UN-No. (IMDG)
1813
UN-No. (IATA)
1813
UN-No. (ADN)
1813
UN-No. (RID)
1813

14.2 — UN proper shipping name

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

14.3 — Transport hazard class(es)

Transport hazard class(es)
8

14.4 — Packing group

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

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 HYDROXIDE Pellets 85% AR is widely utilized in laboratory research as a strong base reagent. It is essential in titrations for determining the concentration of acidic solutions and is often used in the preparation of buffer solutions. Additionally, it serves as a key component in the manufacture of biodiesel, soap, and various chemical syntheses. Its applications extend to the food industry for pH regulation and in the production of potassium-based fertilizers, making it a versatile chemical in both analytical and industrial settings.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL01244
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
56.11 g/mol
Test Standard Observed
Assay 85% KOH 85.2% KOH
Moisture Content < 1% 0.5%
Residue on Ignition < 0.5% 0.3%
Related Substances None detected None detected
Solubility Soluble in water Complete solubility in water at room temperature.

The above product is expected to comply with AR 85% grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
AR 85% 85% KOH 360 °C (melting) / 1320 °C (boiling) < 1% < 0.5% None detected Soluble in water
View full Technical Data Sheet

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