Melting Point Apparatus 931

Melting Point Apparatus 931

Melting Point Apparatus Model 931: Precision Temperature Analysis for Laboratory Applications

The Melting Point Apparatus Model 931 is a professional laboratory instrument specifically designed for accurate measurement of melting points and melting ranges of solid samples. This ISO 9001:2000 certified equipment delivers reliable results for pharmaceutical, chemical, and educational laboratories requiring precise crystalline sample analysis and quality control testing.

Key Features & Benefits

• Wide Temperature Range - Testing capability from 0-300°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
• Multi-Sample Testing - Specialized Teflon cover with three capillary holes for simultaneous sample testing
• Versatile Testing Capability - Additional dedicated positions for boiling point tube and thermometer
• Enhanced Visibility - Large magnifier and glare-free background illuminator for strain-free sample observation
• Precision Heating Control - Indicator for precise adjustment of silicon oil-bath heating rate
• Dual Range Selection - High/low range temperature selector switch for optimized measurement control
• Special Immersion Heater - Designed specifically for optimal oil bath heating characteristics
• Complete Measurement System - Includes 0-360°C thermometer for accurate temperature readings
• Compact Design - Space-efficient laboratory footprint (235 × 285 × 160mm)
• Lightweight Construction - Approximately 8.7kg for easy positioning in the laboratory
• ISO 9001:2000 Certification - Guaranteed quality construction and performance
• 1-Year Warranty - Comprehensive coverage for reliability and peace of mind

Technical Specifications Melting Point Apparatus 931

Parameter	Specification
Model	931
Temperature Range	0-300°C
Temperature Measurement	0-360°C thermometer (included)
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	235 × 285 × 160mm (L×B×H) (Approx.)
Power Requirements	230 ± 10% VAC, 50 Hz
Weight	8.7 Kg. (Approx.)
Controls	On/Off switch with pilot lamp Heating rate adjustment High/Low range temperature selector Stirrer speed control
Observation System	Magnifier with glare-free background illuminator
Warranty	1 Year
Certification	ISO 9001:2000

Included Accessories Melting Point Apparatus 931

• Box of Capillaries
• Boiling Point Tubes - 2 Nos.
• Thermometer with range 0-360°C
• Magnetic Capsule
• Bottle of Silicon Oil
• Glass Cylindrical Beaker with Teflon cover fitted with immersion heater

System Design & Operation

Precision Testing Methodology Melting Point Apparatus 931

The Melting Point Apparatus Model 931 employs a sophisticated oil bath system for accurate melting point determination:

1. Sample Preparation - 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 Preparation - The silicon oil bath is filled and the magnetic stirrer activated for 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 control knob, with appropriate High/Low range selection
6. Sample Observation - The sample is viewed through the magnifier with glare-free illumination to monitor phase changes
7. Temperature Monitoring - The included 0-360°C thermometer provides accurate reading of the current temperature
8. Melting Point Determination - The temperature at which the sample begins to melt and completely melts is recorded

Silicon Oil Bath Technology Melting Point Apparatus 931

The core of the Melting Point Apparatus Model 931 is its sophisticated oil bath heating 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 - Adjustable heating rate allows for optimal melting point observation
• Teflon Cover Design - Strategic placement of openings allows proper alignment of capillaries for observation
• Multi-Sample Capability - Three capillary positions enable testing of multiple samples or replicates simultaneously

Enhanced Visibility SystemMelting Point Apparatus 931

Accurate melting point determination depends on clear observation of physical changes in the sample:

• Precision Magnifier - Provides enlarged view of sample capillaries for detailed observation
• Glare-Free Illumination - Background illuminator ensures optimal visibility of sample phase transitions
• Stain-Free Observation - Optical design minimizes eye fatigue during extended use
• Clear Sample Positioning - Optimal arrangement of capillaries in relation to viewing system

Applications

Pharmaceutical Laboratory Applications Melting Point Apparatus 931

• Raw Material Verification - Confirm identity and purity of pharmaceutical ingredients
• Quality Control Testing - Ensure batch-to-batch consistency of manufactured compounds
• Pharmacopoeia Compliance - Meet USP, EP, JP, and other standards for melting point determination
• Stability Testing - Monitor physical property changes during stability studies
• Polymorph Identification - Differentiate between various crystalline forms of the same compound
• Formulation Development - Characterize physical properties of potential excipients and active ingredients

Chemical Research & Analysis Melting Point Apparatus 931

• Compound Identification - Characterize synthesized or isolated organic compounds
• Purity Assessment - Evaluate sample purity through melting range analysis
• Eutectic Mixture Analysis - Study binary component interactions through melting behavior
• Organic Synthesis Verification - Confirm successful synthesis through melting point comparison
• Chemical Quality Verification - Validate specifications of purchased or produced chemicals

Educational Laboratory Use Melting Point Apparatus 931

• Physical Chemistry Instruction - Demonstrate phase transition principles to students
• Organic Chemistry Laboratories - Support compound identification and purity assessment
• Analytical Method Training - Teach fundamental analytical techniques to students
• Research Project Support - Provide reliable equipment for undergraduate and graduate research
• Physical Property Exploration - Facilitate hands-on learning about crystalline material properties

Additional Testing Applications Melting Point Apparatus 931

• Boiling Point Determination - Measure boiling points of liquid samples using dedicated position
• Wax and Polymer Testing - Analyze melting characteristics of industrial materials
• Food Science Applications - Study melting behavior of fats, lipids, and crystalline food components
• Consumer Product Testing - Evaluate melting properties of ingredients in cosmetics and personal care products

Key Advantages for Laboratory Use

Testing Accuracy & Reliability Melting Point Apparatus 931

The Melting Point Apparatus Model 931 delivers dependable measurement quality through several key design features:

• Uniform Heat Distribution - Magnetic stirring eliminates temperature gradients for consistent readings
• Precision Temperature Control - Adjustable heating rate allows optimization for different sample types
• High-Quality Thermometer - Included 0-360°C thermometer ensures accurate temperature measurement
• Dual Range Selection - High/Low range temperature selector optimizes heating control across the full range
• Enhanced Visibility - Magnifier and glare-free illumination for precise observation of phase changes

Practical Laboratory Design Melting Point Apparatus 931

Engineered for everyday laboratory use with practical considerations:

• Compact Footprint - Space-efficient design (235 × 285 × 160mm) for crowded laboratory benches
• Lightweight Construction - Approximately 8.7kg for easy positioning and transport
• Multi-Sample Capability - Three capillary positions increase testing throughput
• Comprehensive Accessory Package - All necessary components included for immediate use
• Simple Maintenance - Straightforward cleaning and care requirements
• Durable Construction - Built for continuous laboratory operation

User-Friendly Operation Melting Point Apparatus 931

Designed for straightforward use in busy laboratory environments:

• Intuitive Controls - Simple On/Off operation with clear pilot lamp
• Visual Temperature Monitoring - Easy-to-read thermometer with broad range
• Adjustable Stirring Speed - Front knob control for easy adjustment
• Clear Sample Visibility - Optimized viewing system for comfortable observation
• Boiling Point Capability - Versatile design accommodates both solid and liquid sample testing

Operating Instructions Melting Point Apparatus 931

1. Instrument Setup
   • Place the apparatus on a flat, stable surface
   • Fill the bath with silicon oil to the appropriate level (approximately 200ml)
   • Insert the included thermometer into the designated hole in the Teflon cover
   • Connect to power supply (230V ±10% VAC, 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 control indicator
   • Activate the magnetic stirrer and adjust speed with the front knob
   • Monitor the thermometer as temperature rises
   • Observe the sample through the magnifier with illumination
   • Record the temperature at which the sample begins to melt (initial melting point)
   • Note the temperature at which melting is complete (final melting point)
4. System Cooling
   • Turn off heating after testing is complete
   • Allow the oil bath to cool before removing samples or changing capillaries
   • Turn off the instrument when testing is complete
5. For Boiling Point Determination
   • Place liquid sample in the provided boiling point tube
   • Insert tube into the dedicated position in the Teflon cover
   • Follow similar heating procedure as for melting point
   • Record temperature at which continuous bubbling begins

Maintenance & Care Melting Point Apparatus 931

• Oil Bath Maintenance - Replace silicon oil periodically or when discolored
• Illuminator Care - Keep the background illuminator clean for optimal visibility
• Magnifier Cleaning - Clean with appropriate lens cleaning solution as needed
• Capillary Management - Dispose of used capillaries properly; never reuse
• Thermometer Verification - Periodically check accuracy with reference standards
• Stirrer Care - Ensure magnetic capsule is clean and rotates freely
• Surface Cleaning - Wipe external surfaces with slightly damp cloth; avoid harsh solvents
• Storage - Cover when not in use to protect from dust and damage

About Electronics India Melting Point Apparatus 931

Electronics India is an ISO 9001:2000 certified manufacturer of precision laboratory and analytical equipment. With a comprehensive product range that includes spectrophotometers, analyzers, meters, and testing apparatus, 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 Melting Point Apparatus 931

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
• Digital pH Meters and Photo Fluorometers
• Digital Conductivity, TDS, and DO Meters
• Digital Photo Colorimeters and Turbidity Meters
• Auto KF Titrimeters and Digital Colony Counters
• Digital Tablet Disintegration Apparatus
• Digital Friability Test Apparatus
• Tablet Dissolution Test Apparatus
• Temperature Indicators and Digital Telethermometers
• Water & Soil Analysis Kits
• Portable Testing Equipment
• Various Microscopes (Student, Binocular, Medical, Co-Axial)

FAQ: Melting Point Apparatus Model 931

Why is a silicon oil bath used for melting point determination? Melting Point Apparatus 931

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 (0-300°C), and provides stable, controlled heating characteristics essential for precise melting point measurement.

How does the magnetic stirrer improve measurement accuracy? Melting Point Apparatus 931

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.

What is the purpose of the High/Low range temperature selector? Melting Point Apparatus 931

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.

Can I test both melting points and boiling points with this apparatus? Melting Point Apparatus 931

Yes, the Melting Point Apparatus Model 931 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 boiling point tubes for this purpose.

How many samples can be tested simultaneously?

The apparatus can test up to three solid samples simultaneously using the three capillary positions in the Teflon cover. This allows for testing multiple samples in parallel or running replicates of the same sample for verification, increasing laboratory efficiency and testing throughput.

Summary Melting Point Apparatus 931

The Melting Point Apparatus Model 931 by Electronics India represents a practical and reliable solution for laboratories requiring accurate melting point determination. This ISO 9001:2000 certified instrument combines essential features for precise testing with a user-friendly design suitable for pharmaceutical laboratories, chemical analysis facilities, and educational institutions. Key advantages include the silicon oil bath with integrated magnetic stirrer for uniform heating, multi-position sample testing capability, enhanced visibility through magnifier and glare-free illumination, and versatile temperature range (0-300°C). The included high-quality accessories, such as the 0-360°C thermometer, capillaries, boiling point tubes, and magnetic capsule, ensure the apparatus is ready for immediate use upon delivery. With its compact footprint (235 × 285 × 160mm), lightweight design (8.7 kg), and practical feature set, the Melting Point Apparatus Model 931 offers excellent laboratory value while maintaining the precision and reliability required for critical testing applications. The ability to test both melting points of solid samples and boiling points of liquid samples enhances its versatility as a laboratory instrument. Backed by Electronics India's reputation for quality instrumentation and protected by a 1-year warranty, the Melting Point Apparatus Model 931 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 requiring reliable physical property testing.