Potassium Dihydrogen Phosphate Extra Pure

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Potassium Dihydrogen Phosphate Extra Pure, also known as monopotassium phosphate (MKP), is a white crystalline compound with excellent solubility in water and a slightly acidic pH. It serves as a valuable buffering agent and a source of both potassium and phosphorus in various chemical, agricultural, and food-grade applications. In laboratories, it is commonly used in the preparation of buffer solutions and nutrient media for microbial culture. In agriculture, it is employed as a high-efficiency fertilizer due to its dual nutrient content, promoting strong root development and flowering. This compound should be stored in a cool, dry place, away from incompatible substances and moisture to preserve its purity and effectiveness.

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Categories: Analytical Reagents, Biochemical Reagents Tags: AnalyticalReagent, BiochemicalUse, BufferReagent, HighPurity, KH2PO4, LabGrade, MonopotassiumPhosphate, phcontrol, PhosphateBuffer, PotassiumDihydrogenPhosphate

Description

Potassium Dihydrogen Phosphate Extra Pure

PRIMARY USES

Laboratory Reagent:
- Commonly used in buffer solutions to maintain stable pH in biochemical and analytical experiments.
- Key component in phosphate-buffered saline (PBS).
Agricultural Fertilizer:
- Serves as a highly efficient source of phosphorus and potassium in specialty fertilizers.
- Promotes root development, flowering, and fruiting in crops.
Food Additive:
- Used as an acidity regulator, nutrient, and buffer in food processing (E340).
- Found in baking powders, dry drink mixes, and dairy products.
Pharmaceutical Use:
- Provides electrolyte replenishment in intravenous fluids and nutritional supplements.

SECONDARY USES

Water Treatment:
- Helps in corrosion control and pH stabilization in water systems.
Animal Feed Additive:
- Provides essential phosphorus and potassium in formulated animal diets.
Electronics and Industrial Applications:
- Used in ceramics, optical glass, and crystal growth for semiconductors.

PRODUCT KEY FEATURES

1. Basic Identification Attributes

Chemical Name: Potassium Dihydrogen Phosphate
CAS Number: 7778-77-0
HS Code: 2835.24.00
Molecular Formula: KH₂PO₄
Synonyms:
- Monopotassium phosphate (MKP)
- Potassium phosphate monobasic
- Monobasic potassium phosphate
- Primary potassium phosphate

2. Physical & Chemical Properties

Physical State: Solid (crystalline powder or granules)
Color & Odor: White, odorless
Boiling Point & Melting Point:
- Melting Point: 252 °C (decomposes)
- Boiling Point: Not applicable (decomposes before boiling)
Density/Specific Gravity: ~2.34 g/cm³
Solubility:
- Soluble in water (22.6 g/100 mL at 25 °C)
- Insoluble in ethanol
pH Level: ~4.4 to 4.7 (1% solution)
Vapor Pressure & Volatility: Non-volatile
Flash Point: Not flammable
Autoignition Temperature: Not applicable
Viscosity: Not applicable (solid)

3. Safety & Hazard Attributes

Hazard Class (GHS Classification):
- Not classified as hazardous under GHS
NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
Exposure Limits:
- No OSHA PEL or ACGIH TLV specified; considered low hazard
Reactivity:
- Stable under normal conditions
- Avoid strong oxidizers and strong bases

4. Storage & Handling Attributes

Storage Conditions:
- Store in cool, dry, well-ventilated area
- Keep container tightly sealed
Incompatible Materials:
- Strong oxidizing agents
Container Type:
- Plastic, glass, or lined metal containers
Shelf Life & Expiration Date:
- Stable for at least 3 years if properly stored
Special Handling Requirements:
- Use gloves and eye protection during handling
- Avoid inhaling dust

5. Regulatory & Compliance Attributes

Regulatory Status:
- Listed on TSCA inventory
- Approved for use in food and fertilizer applications
- Complies with FCC and USP specifications
Hazard Symbols (GHS Pictograms):
- None required
Transportation Restrictions:
- Not regulated for transport
Waste Disposal Method:
- Dispose in accordance with local and national regulations
- Generally considered non-hazardous waste

6. Environmental & Health Impact

Ecotoxicity:
- Low toxicity to aquatic organisms
Persistence in Environment:
- Readily dissociates and contributes to nutrient load (may lead to eutrophication in large quantities)
Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
Biodegradability:
- Inorganic salt; not biodegradable but environmentally acceptable in small amounts

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):

Wear protective gloves (e.g., nitrile).
Use safety goggles or face shields.
Wear a lab coat or suitable protective clothing.
Ensure adequate ventilation when handling powders.

Handling:

Avoid breathing dust.
Do not eat, drink, or smoke while handling.
Handle with care to avoid spillage and dust formation.

Storage:

Store in a tightly closed container.
Keep in a cool, dry, and well-ventilated area.
Keep away from incompatible materials (e.g., strong oxidizers).

FIRST AID MEASURES

Inhalation:

Move the person to fresh air immediately.
Seek medical attention if symptoms persist.

Skin Contact:

Wash skin thoroughly with soap and water.
Remove contaminated clothing and launder before reuse.
Get medical attention if irritation develops.

Eye Contact:

Rinse immediately with plenty of water for at least 15 minutes.
Seek medical help if discomfort or redness continues.

Ingestion:

Rinse mouth with water.
Do not induce vomiting.
Seek medical attention, especially if a large amount is consumed.

FIRE FIGHTING MEASURES

Flammability:

Not flammable.

Extinguishing Media:

Use appropriate media for surrounding fire: water spray, dry chemical, foam, or CO₂.

Hazardous Combustion Products:

May release phosphorus oxides and potassium compounds on thermal decomposition.

Firefighter Protection:

Wear self-contained breathing apparatus (SCBA) and full protective gear.
Avoid breathing combustion fumes.

Potassium Dihydrogen Phosphate Extra Pure