ISO 17025 Certified High Purity Barium Chloride Dihydrate for Analytical Reagent

Product Specification

High Purity Barium Chloride (for Laboratory Use)

Product Overview
Hongjian Chemical specializes in developing high purity barium chloride for laboratory research and analysis needs. Using "recrystallization-zone melting" refining processes, the product achieves purity above 99.995% with heavy metal content below 0.5 ppm. Strictly adheres to ISO 17025 quality management system, providing complete traceability certificates to meet precise experimental requirements of research institutions and testing laboratories.

❋ Aliases: Crystalline Barium Chloride
❋ English Name: Barium Chloride, High Purity for Laboratory
❋ Chemical Formula: BaCl₂·2H₂O (dihydrate)
❋ Molecular Weight: 244.26 (dihydrate)
❋ CAS Number: 10326-27-9 (dihydrate)

Key Properties: Analytical reagent grade purity, extremely low heavy metal content, excellent crystal integrity, high batch-to-batch stability

Laboratory Grade Technical Parameters

Physicochemical Indicators

• Main Content (BaCl₂·2H₂O): ≥99.995%

• Moisture: 14.0-15.0% (conforms to theoretical value)

• Water Insolubles: ≤0.001%

• pH Value (5% aqueous solution, 25℃): 5.0-7.0

• Specific Optical Rotation: Non-optically active

Impurity Content Control (ppm)

Laboratory Application Guide

1. Analytical Chemistry Applications

• Sulfate Quantitative Analysis: As standard precipitant, forms BaSO₄ precipitate with sulfate, detection limit reaches 0.1 mg/L

• Gravimetric Analysis: Used for precise determination of sulfates in soil and water samples, relative standard deviation ≤0.5%

• Chromatographic Analysis: Ion chromatography system suitability verification, retention time deviation ≤1%

2. Teaching Demonstration Experiments

• Precipitation Reaction Demonstration: Produces characteristic precipitates with sodium carbonate, sodium sulfate, etc., with obvious phenomena

• Flame Test Experiment: Barium characteristic yellow-green flame, suitable for qualitative analysis teaching

• Water of Crystallization Determination: Demonstrates water of crystallization removal process through thermogravimetric analysis

3. Materials Science Research

• Single Crystal Cultivation: Grows BaCl₂·2H₂O single crystals by slow evaporation method, size up to 10×10×5 mm

• Functional Material Precursor: Used for preparing barium-based functional ceramics, superconducting materials

• Nanomaterial Synthesis: As template agent for preparing hollow structure nanomaterials

4. Reference Material Development

• Standard Solution Preparation: Used for instrument calibration like ICP-MS, AAS

• Proficiency Testing Samples: Standard reference materials for inter-laboratory comparisons

• Method Development Validation: Reference materials for new analytical method development and validation

Quality Assurance System

Production Quality Control

• Uses 99.99% high purity barium carbonate as raw material, ensures source purity

• Produced in clean room with environment cleanliness reaching Class 10000

• Full-process inert gas protection prevents product moisture absorption and oxidation

Testing Method Certification

• Main Content Determination: Gravimetric method (primary method)

• Heavy Metal Detection: Graphite Furnace Atomic Absorption Spectrometry (GF-AAS)

• Anion Analysis: Ion Chromatography (IC)

• Moisture Determination: Karl Fischer Method (KF)

Packaging and Storage

• Brown glass bottle packaging with double-layer internal sealing

• Nitrogen filling protection, includes humidity indicator card

• Recommended storage conditions: Temperature 15-25℃, relative humidity ≤40%

Safety Usage Instructions

Toxicity Warning

• Highly toxic chemical, LD50 (rat oral) ≈ 118 mg/kg

• Should wear protective glasses, gloves, and respirator when using

• Experiments should be conducted in fume hood

Waste Disposal

• Waste liquid should be collected uniformly, add sodium sulfate to generate insoluble BaSO₄ precipitate

• Precipitate should be treated as hazardous waste, handed over to qualified units for disposal

• Strictly prohibited from direct discharge into drainage systems

Emergency Treatment

• Skin Contact: Immediately rinse with plenty of water for 15 minutes

• Eye Contact: Rinse with physiological saline and seek medical attention

• Ingestion: Immediately drink magnesium sulfate solution and seek emergency medical care