LR Grade Phosphoric Acid
Laboratory Buffer
Laboratory Reagent

LR Grade Phosphoric Acid (H₃PO₄)

Laboratory Reagent grade phosphoric acid manufactured for general laboratory procedures, educational applications, and routine chemical processing. Our LR grade H₃PO₄ provides reliable triprotic acid properties for standard laboratory work, pH control, fertilizer applications, and metal treatment processes.

  • 85% Laboratory Grade Concentration
  • Triprotic Acid Properties
  • pH Control & Buffering
  • Fertilizer Grade Quality
  • Metal Treatment Applications
  • Educational & Training Use
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Technical Specifications

Chemical Formula: H₃PO₄
CAS Number: 7664-38-2
EINECS Number: 231-633-2
Concentration (Assay): 85% (LR Grade)
Physical State: Clear, colorless, viscous liquid
Density (20°C): 1.69 g/cm³
Molecular Weight: 97.99 g/mol
Boiling Point: 213°C (85% solution)
pH (1% solution): 1.5 - 2.0
Residue on Ignition: ≤ 0.005%
Chloride (Cl): ≤ 0.0005%
Iron (Fe): ≤ 0.001%
Heavy Metals (as Pb): ≤ 0.001%
Sulfate (SO₄): ≤ 0.003%
Arsenic (As): ≤ 0.0001%
UN Number: UN 1805 (Phosphoric acid solution)
Packaging Options: 500ml, 1L, 2.5L plastic bottles

Applications

Educational Laboratories
pH Control & Buffering
Fertilizer Production
Chemical Analysis
Teaching & Training
Metal Treatment
Food Grade Applications
Analytical Chemistry
Rust Removal
Surface Treatment
Quality Control
Student Experiments

Industry-Specific Grades

DRAVYOM offers specialized phosphoric acid grades tailored for different laboratory and industrial requirements, ensuring optimal performance and cost-effectiveness across diverse pH control and fertilizer applications.

LR Grade (Laboratory Reagent)
Assay: 85% Residue: ≤ 0.005% Heavy Metals: ≤ 0.001% Application: General laboratory, educational use
Fertilizer Grade
Assay: 75-85% P₂O₅ Content: High Arsenic: ≤ 0.0001% Application: Fertilizer production, agriculture
Food Grade
Assay: 75-85% Safety: Food additive standards Purity: High food safety compliance Application: Food processing, beverages
Technical Grade
Assay: 75-85% Metal Treatment: Optimized Rust Removal: Enhanced Application: Metal treatment, cleaning

Quality Standards

DRAVYOM's LR Grade Phosphoric Acid is manufactured under standard quality control protocols, meeting laboratory reagent specifications for educational and general laboratory applications. Our production ensures consistent acid strength and pH control performance.

ISO 9001:2015 Certified Manufacturing
Laboratory Reagent Standards
85% Reliable Concentration
Standard Analytical Testing
Educational Grade Compliance
Consistent pH Control Performance
Certificate of Analysis
Safe Transportation Standards

Advanced Chemical Properties & Performance

LR Grade Phosphoric Acid exhibits weak triprotic acid properties with excellent buffering capacity and metal complexation abilities, making it suitable for educational demonstrations and general laboratory applications requiring controlled pH adjustment.

Acid Properties
First Ionization: H₃PO₄ ⇌ H⁺ + H₂PO₄⁻
Second Ionization: H₂PO₄⁻ ⇌ H⁺ + HPO₄²⁻
Third Ionization: HPO₄²⁻ ⇌ H⁺ + PO₄³⁻
Ka1: 7.5 × 10⁻³
Buffer Properties
Buffer Systems: H₃PO₄/H₂PO₄⁻, H₂PO₄⁻/HPO₄²⁻
Buffer Range: pH 1.1-3.1, 6.2-8.2
Buffer Capacity: Excellent for biological systems
Stability: Stable in aqueous solutions
Physical Properties
Boiling Point (85%): 213°C
Freezing Point (85%): -17°C
Viscosity (85%): 147 mPa·s (25°C)
Solubility: Completely miscible with water

Performance Characteristics

Performance metrics demonstrate LR Grade H₃PO₄ reliability in educational and general laboratory applications with consistent pH control and buffering performance for routine procedures.

pH Control Performance

Effectiveness: Excellent pH buffering capacity

Consistent pH adjustment for laboratory use
Educational Suitability

Safety: Safe handling protocols for students

Ideal for teaching acid-base concepts
Buffer Performance

Strength: Excellent triprotic buffer behavior

Suitable for biological buffer systems
Cost Effectiveness

Economics: Optimal cost-performance ratio

Budget-friendly laboratory solution

Safety Information

Moderately corrosive acid that can cause irritation to skin and eyes. Handle in well-ventilated areas with appropriate protective equipment. Less hazardous than strong mineral acids but requires proper safety protocols. Particularly suitable for educational settings with appropriate supervision and safety measures.

Mild Irritant
Eye Protection
Educational Safe

Storage & Handling

Store in original plastic containers in a cool, dry, well-ventilated area away from strong bases and reactive metals. Keep containers tightly closed and protect from contamination. Use appropriate storage equipment and maintain proper inventory management for educational institutions.

Store at 15-25°C
Good ventilation required
Plastic containers recommended
Protect from contamination

Chemical Mechanisms & Reaction Pathways

Phosphoric acid exhibits weak triprotic acid properties with excellent buffering capacity through multiple ionization steps, making it suitable for educational demonstrations and general laboratory applications requiring controlled pH adjustment.

Buffer Reactions

Forms multiple buffer systems: H₃PO₄/H₂PO₄⁻ and H₂PO₄⁻/HPO₄²⁻

Ideal for teaching buffer mechanisms
Metal Complexation

Forms stable complexes with metal ions for analytical applications

Suitable for metal treatment and analysis
Fertilizer Chemistry

Provides phosphorus nutrition as orthophosphate ions

Essential for plant growth applications
Surface Treatment

Removes rust and provides corrosion protection on metals

Important for metal surface preparation

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures safe use of phosphoric acid in educational and laboratory environments with complete documentation supporting institutional safety requirements.

Educational Standards

Compliance with educational institution safety for weak acids

Food Grade Classification

Food additive approved phosphoric acid standards

Safety Compliance

Occupational safety standards for mild acids

Transportation

UN classification for corrosive solutions

Technical Support & Value-Added Services

DRAVYOM's educational and laboratory support team provides comprehensive guidance for safe handling of phosphoric acid and technical assistance for LR Grade H₃PO₄ applications.

Educational Support
  • pH control training programs
  • Buffer system experiment development
  • Student safety protocol guidance
  • Dilution procedure training
pH Control Services
  • Buffer preparation guidance
  • pH adjustment consultation
  • Process optimization support
  • Quality control assistance

Environmental Impact & Sustainability

Our LR Grade H₃PO₄ production emphasizes environmental responsibility with proper phosphate recovery systems and comprehensive environmental impact management for educational and laboratory operations.

Phosphate Recovery

Spent phosphoric acid recovery and regeneration systems

Educational Sustainability

Supporting sustainable chemistry education with proper neutralization

Safe Neutralization

Neutralization guidance for laboratory waste management

Container Programs

Plastic container return and recycling programs

Manufacturing Excellence & Quality Control

DRAVYOM's laboratory reagent manufacturing facility employs controlled production technology for consistent LR Grade H₃PO₄ quality and pH control performance across all production batches.

Production Process

Controlled acid production with concentration and purity management

Consistent concentration and buffering properties
pH Testing

pH control verification and buffer capacity testing protocols

Regular pH performance monitoring
Safety Systems

Enhanced safety protocols for weak acid production

Comprehensive safety management systems

Market Applications & Performance Data

Market analysis demonstrates strong demand for LR Grade phosphoric acid across educational institutions, fertilizer industry, and food processing sectors with consistent growth in pH control applications.

Educational Institutions
Safety Record: 99.8% incident-free buffer experiments Performance: Consistent pH control demonstrations Cost Efficiency: 35% more economical vs higher grades
General Laboratories
Buffer Capacity: Excellent for routine pH applications Quality: Meets standard laboratory requirements Customer Satisfaction: 95% user approval rate

DRAVYOM Competitive Advantages

pH Control Expertise

Specialized knowledge in phosphoric acid buffer systems and pH control applications for educational environments

Educational Focus

Dedicated support for educational institutions with buffer training and curriculum assistance

Safety Leadership

Enhanced safety protocols and documentation specifically designed for mild acid applications

Reliable Supply

Consistent availability with educational institution programs and phosphoric acid handling expertise

Quality Consistency

Consistent buffer performance with certificates suitable for laboratory reagent requirements

Partnership Approach

Long-term relationships with educational institutions and specialized pH control support services