Digital Melting Point Apparatus

Digital Melting Point Apparatus

Digital Melting Point Apparatus: Precision Temperature Analysis for Laboratory Applications

The Digital Melting Point Apparatus is a sophisticated laboratory instrument specifically designed for accurate measurement of melting points and melting ranges of solid samples. This ISO 9001:2000 certified equipment delivers exceptional precision for pharmaceutical, chemical, and educational laboratories requiring reliable crystalline sample analysis.

Key Features & Benefits Digital Melting Point Apparatus

• High-Precision Temperature Display - 4-digit seven segment red LED display with model-specific resolution (0.1°C in model 935, 1°C in model 934)
• Wide Temperature Range - Testing capability from ambient to 300°C for diverse sample analysis
• Silicon Oil Bath System - 200ml capacity bath with Teflon cover ensures uniform heat distribution
• Integrated Magnetic Stirrer - Built-in stirring capability with adjustable speed for consistent temperature throughout the oil bath
• Specialized Teflon Cover - Features 5 strategic openings for capillaries (3), boiling point tube (1), and thermometer (1)
• Enhanced Visibility - Large magnifier and glare-free background illuminator for strain-free sample observation
• Precision Heating Control - Electronic controller with indicator for precise adjustment of heating rate
• Platinum Resistance Sensor - PT-100 RTD sensor for accurate temperature measurement
• Simple Operation - Intuitive Start/Stop/Clear controls for straightforward testing procedure
• Temperature Range Selector - High/Low range selector switch for optimized measurement control
• Memory Function - Display retains last measured temperature reading for reference
• Special Immersion Heater - Designed specifically for optimal oil bath heating characteristics
• Compact Design - Space-efficient laboratory footprint (315 × 290 × 230mm)
• ISO 9001:2000 Certification - Guaranteed quality construction and performance
• 1-Year Warranty - Comprehensive coverage for reliability and peace of mind

Technical Specifications Digital Melting Point Apparatus

Parameter	Specification
Model Options	935 (0.1°C resolution) 934 (1°C resolution)
Temperature Range	0-300°C on a 4-digit LED display
Temperature Resolution	Model 935: 0.1°C Model 934: 1°C
Temperature Sensor	PT-100 RTD sensor
Oil Bath	Silicon oil bath - 200 ml capacity Teflon cover with three capillary holes, one boiling point tube hole, and one thermometer hole Includes special oil immersion heater
Stirrer Speed	Controllable with front knob
Capillary Glass Tube	12mm long, 0.8 to 1.1mm internal diameter
Sample Requirements	Fine powder properly dried at a temperature considerably below its melting point, 4 to 6 mm high
Dimensions	315 × 290 × 230mm (L×B×H) (Approx.)
Power Requirements	230V ±10% AC, 50 Hz
Weight	12 Kg. (Approx.)
Controls	Start, Stop, Clear switches High/Low range temperature selector Heating rate controller
Display	4-digit seven segment red LED
Warranty	1 Year
Certification	ISO 9001:2000

Included Accessories Digital Melting Point Apparatus

• Box of Capillaries
• Glass Tubes for Liquid Sample (6 × 75 mm) - 2 Nos.
• Magnetic Capsule
• Bottle of Silicon Oil - 250 ml
• Glass Cylindrical Beaker with Teflon cover fitted with immersion heater
• Instruction Manual
• Dust Cover

How It Works

Precision Testing Process Digital Melting Point Apparatus

The Digital Melting Point Apparatus employs a methodical approach to melting point determination:

1. Sample Preparation - The solid sample is finely powdered and dried at a temperature well below its melting point
2. Capillary Loading - A 4-6mm column of sample is loaded into glass capillary tubes
3. Bath Setup - The silicon oil bath is filled and the magnetic stirrer activated to ensure uniform temperature distribution
4. Capillary Placement - Sample-filled capillaries are inserted into the designated holes in the Teflon cover
5. Temperature Control - The heating rate is adjusted using the electronic controller
6. Measurement Initiation - The 'Start' switch is pressed to begin temperature monitoring
7. Sample Observation - The sample is viewed through the magnifier and illuminator to observe phase changes
8. Result Recording - When melting occurs, the 'Stop' switch is pressed to capture the temperature reading
9. Temperature Display - The 4-digit LED display shows the temperature at which the sample melted

Silicon Oil Bath Technology Digital Melting Point Apparatus

The heart of the Digital Melting Point Apparatus is its sophisticated oil bath system:

• Uniform Heat Distribution - The 200ml silicon oil bath provides consistent temperature throughout the testing environment
• Integrated Magnetic Stirring - Continuous stirring eliminates temperature gradients within the oil bath
• Specialized Immersion Heater - Custom-designed heater ensures optimal heat transfer to the oil
• Precise Temperature Control - Electronic controller allows fine adjustment of heating rate
• PT-100 RTD Sensor - Professional-grade platinum resistance temperature detector provides accurate readings
• Teflon Cover Design - Strategic placement of openings allows proper alignment of capillaries for observation

Applications

Pharmaceutical Quality Control Digital Melting Point Apparatus

• Raw Material Verification - Confirm identity and purity of pharmaceutical ingredients
• Batch Quality Testing - Ensure consistent quality of manufactured compounds
• USP/EP/JP Compliance - Meet pharmacopeia requirements for melting point determination
• Stability Testing - Monitor physical property changes during stability studies
• Polymorphism Detection - Identify different crystalline forms of the same compound

Chemical Analysis & Research

• Compound Identification - Characterize synthesized or isolated compounds
• Purity Assessment - Evaluate sample purity through melting range analysis
• Eutectic Mixture Analysis - Determine composition through melting behavior
• Crystallization Studies - Analyze crystallization patterns and properties
• Quality Verification - Confirm specifications of purchased chemicals

Educational Applications Digital Melting Point Apparatus

• Laboratory Instruction - Teach fundamental analytical techniques to students
• Physical Chemistry Demonstrations - Illustrate principles of phase transitions
• Organic Chemistry Labs - Support compound identification and purity assessment
• Student Research Projects - Provide reliable equipment for undergraduate and graduate research
• Technique Development - Build skills in physical property determination

Industrial Quality Control

• Wax and Polymer Testing - Determine melting characteristics of industrial materials
• Food Science Applications - Analyze fats, lipids, and crystalline food components
• Material Verification - Confirm consistency of incoming materials
• Product Development - Characterize properties of new formulations

Key Advantages for Laboratory Use

Superior Accuracy & Precision Digital Melting Point Apparatus

The Digital Melting Point Apparatus delivers exceptional measurement quality through several key design features:

• High-Resolution Digital Display - Model 935 provides 0.1°C resolution for detailed analysis
• PT-100 RTD Sensor - Laboratory-grade platinum resistance sensor ensures accurate readings
• Uniform Oil Bath Heating - Magnetic stirring eliminates temperature gradients
• Controlled Heating Rate - Adjustable heating allows optimization for different sample types
• Enhanced Visibility - Magnifier and glare-free illumination for precise observation of phase changes

User-Friendly Operation Digital Melting Point Apparatus

Designed for straightforward use in busy laboratory environments:

• Intuitive Controls - Simple Start/Stop/Clear operation
• Clear Digital Readout - Bright LED display shows temperature readings
• Memory Feature - Last temperature reading is retained until cleared
• Adjustable Stirring Speed - Front knob control for easy adjustment
• High/Low Range Selector - Optimizes measurement for different temperature ranges
• Visual Indicators - Pilot lamp shows operational status

Practical Laboratory Design Digital Melting Point Apparatus

Engineered for the realities of daily laboratory use:

• Compact Footprint - Efficient use of valuable bench space
• Complete Accessory Package - All necessary components included
• Multiple Sample Testing - Three capillary positions allow simultaneous testing
• Boiling Point Capability - Dedicated position for boiling point tube
• Durable Construction - Built for continuous laboratory operation
• Protective Dust Cover - Safeguards instrument when not in use

Operating Instructions Digital Melting Point Apparatus

1. Instrument Setup
   • Place the apparatus on a flat, stable surface
   • Fill the bath with silicon oil to the appropriate level (approximately 200ml)
   • Connect to power supply (230V ±10% AC, 50Hz)
   • Turn on the instrument using the ON/OFF switch (pilot lamp will illuminate)
2. Sample Preparation
   • Grind the solid sample into a fine powder
   • Ensure sample is completely dry (pre-dry if necessary at temperature well below melting point)
   • Pack capillary tube by gently tapping open end into the powdered sample
   • Ensure sample column height is 4-6mm at bottom of capillary
   • Tap capillary on hard surface to compact the sample at the closed end
3. Testing Procedure
   • Insert loaded capillaries into designated holes in the Teflon cover
   • Set the High/Low range temperature selector switch as appropriate
   • Adjust the heating rate using the electronic controller
   • Activate the magnetic stirrer and adjust speed with the front knob
   • Press the 'Start' switch to begin temperature monitoring
   • Observe the sample through the magnifier with illumination
   • When melting begins, note the temperature on the digital display
   • When melting is complete, press the 'Stop' switch
   • Record the final temperature shown on the display
4. System Reset Digital Melting Point Apparatus
   • Press 'Clear' switch to reset the display for the next test
   • Allow the oil bath to cool before removing samples or changing capillaries
   • Turn off the instrument when testing is complete

Maintenance & Care Digital Melting Point Apparatus

• Oil Bath Maintenance - Replace silicon oil periodically or when discolored
• Cleaning - Keep the illuminator and magnifier clean for clear observation
• Capillary Management - Dispose of used capillaries properly; never reuse
• Temperature Verification - Periodically check accuracy with certified reference materials
• Stirrer Care - Ensure magnetic capsule is clean and rotates freely
• Surface Cleaning - Wipe external surfaces with slightly damp cloth; avoid solvents
• Storage - Use the provided dust cover when instrument is not in use

About Electronics India Digital Melting Point Apparatus

Electronics India is an ISO 9001:2000 certified manufacturer of precision laboratory and analytical equipment. With a comprehensive product range that includes spectrophotometers, analytical instruments, testing apparatus, and laboratory equipment, the company has established a reputation for delivering reliable, high-quality instruments for pharmaceutical, research, educational, and industrial applications. Their commitment to quality is demonstrated through ISO certification and comprehensive warranty coverage. Electronics India continues to develop innovative solutions for analytical testing needs across various sectors, combining precision technology with practical laboratory functionality.

Additional Products in the Electronics India Range

Electronics India offers a complete line of analytical and testing equipment including:

• UV/VIS Spectrophotometers (Single and Double Beam)
• Semi-Auto Analyzers
• Flame Photometers and Hemoglobin Meters
• Photo Colorimeters and Fluorometers
• pH, Conductivity, TDS, DO, and Salinity Meters
• Dissolution and Disintegration Test Apparatus
• Friability Test Apparatus
• Turbidity Meters and Nephelometers
• Colony Counters
• Karl Fischer Moisture Titrators
• Telethermometers and Temperature Indicators
• Water & Soil Analysis Kits
• Portable Testing Equipment
• Various Microscopes (Student, Binocular, Medical, Co-Axial)

FAQ: Digital Melting Point Apparatus

What is the difference between models 935 and 934? Digital Melting Point Apparatus

The primary difference is in display resolution. Model 935 offers higher precision with 0.1°C resolution, which is ideal for applications requiring more detailed temperature analysis. Model 934 provides 1°C resolution, which is suitable for general laboratory use and educational applications. Both models share the same core features, temperature range, and functionality.

Why is a silicon oil bath used rather than other heating methods? Digital Melting Point Apparatus

Silicon oil provides several advantages for melting point determination: it offers excellent heat capacity and distribution properties, maintains uniform temperature throughout the bath (especially with magnetic stirring), allows clear visibility of samples, has a high boiling point suitable for the full temperature range, and provides stable, controlled heating characteristics essential for precise melting point measurement.

How does the magnetic stirrer improve measurement accuracy? Digital Melting Point Apparatus

The integrated magnetic stirrer ensures uniform temperature distribution throughout the oil bath by preventing temperature stratification (layering). Without stirring, temperature gradients could develop where the oil near the heating element becomes hotter than oil at the sample position, leading to inaccurate readings. Constant stirring maintains consistent temperature throughout the bath for more reliable measurements.

Can this apparatus test both melting points and boiling points? Digital Melting Point Apparatus

Yes, the apparatus is designed to measure both. The Teflon cover has specific positions for three capillary tubes (for solid sample melting points) and one dedicated position for a boiling point tube (for liquid sample boiling points). The included accessories package contains both standard capillaries and specialized glass tubes (6 × 75 mm) for liquid sample testing.

What is the purpose of the High/Low range temperature selector? Digital Melting Point Apparatus

The High/Low range selector optimizes the heating control characteristics for different temperature ranges. For lower melting point samples, the Low range selection provides more precise control and finer temperature adjustment in the lower temperature ranges. For higher melting point samples, the High range selection is optimized for the upper temperature spectrum, ensuring accurate readings throughout the full 0-300°C range.

Summary Digital Melting Point Apparatus

The Digital Melting Point Apparatus by Electronics India represents an excellent balance of precision, functionality, and value for laboratories requiring reliable melting point determination. Available in two models—the high-resolution 935 (0.1°C) and standard 934 (1°C)—this ISO 9001:2000 certified instrument delivers accurate results for pharmaceutical quality control, chemical analysis, educational applications, and industrial testing. The system's key advantages include its silicon oil bath with integrated magnetic stirrer for uniform heating, 4-digit LED display for clear temperature readings, enhanced sample visibility through magnifier and glare-free illumination, and simple operation with intuitive controls. The comprehensive accessory package, including capillaries, glass tubes for liquid samples, magnetic capsule, and silicon oil, ensures the apparatus is ready for immediate use. With its compact design (315 × 290 × 230mm), reasonable weight (12 kg), and complete feature set, the Digital Melting Point Apparatus offers excellent laboratory value while maintaining the precision and reliability required for critical testing applications. The instrument's temperature range of 0-300°C accommodates most laboratory melting point determination needs, while the specialized Teflon cover with multiple sample positions allows efficient workflow. Backed by Electronics India's reputation for quality instrumentation and protected by a 1-year warranty, the Digital Melting Point Apparatus delivers professional-grade performance for melting point analysis across a wide range of solid samples, making it an essential tool for any quality-focused laboratory.