Tetrahydrofuran AR Grade (CAS 109-99-9, EC 203-726-8) is a colorless cyclic ether with low viscosity, miscible with water at room temperature and pressure.

It is a crucial ether solvent widely utilized in chemical synthesis and the polymer industry. Due to its flammability and potential health hazards, careful handling practices are essential during its use.

General Information

• Name: Tetrahydrofuran
• CAS Number: 109-99-9
• Molecular Weight: 72.11
• Molecular Formula: C4H8O
• MDL Number: MFCD00005356
• EC Number: 203-726-8

General Information: Tetrahydrofuran is a colorless liquid with a distinctive ether-like odor, widely used as a solvent and reaction medium.

Brand and Packaging: Brand: KeShi Packaging: 500ml × 20 bottles/case

Physical Properties:

• Appearance: Colorless liquid
• Density: 0.889 g/cm³
• Boiling Point: 66°C
• Melting Point: -108.5°C
• Solubility: Soluble in water, ethanol, and ether; miscible with most organic solvents.

Chemical Properties:

• Acidity (pKa): 25.3
• Reactivity: Relatively stable; can react with oxidizing agents.

   H
   |
C--O--
   |
   C
   |
   H

| Product Name   | Specification | Lot Number  | Molecular Formula | Molecular Weight | Lot Size | Inspection Unit            | Sample Category | Report Date | Inspection Basis  |
|----------------|---------------|-------------|-------------------|------------------|----------|----------------------------|-----------------|-------------|-------------------|
| Tetrahydrofuran | Analytical Grade | 2022082901 | C4H8O             | 72.10            | 28800kg  | Production Unit            | Organic         | 2022.08.30  | HG/T 5347-2018    |

| Test Item               | Standard Requirement   | Test Result |
|-------------------------|------------------------|-------------|
| Content,% (Purity)      | ≥99.5                  | 99.9        |
| Appearance              | Colorless transparent liquid | Colorless transparent liquid |
| Color (Hazen units)     | ≤10                    | ＜10         |
| Density (20°C), g/mL    | 0.886～0.889           | 0.887       |
| Refractive Index (n20/D)| 1.406～1.409           | 1.407       |
| Evaporation Residue,%   | ≤0.005                 | 0.0007      |
| Moisture (H2O),%        | ≤0.05                  | 0.02        |
| Peroxides (as H2O2),%   | ≤0.015                 | 0.001       |

Analysis Conclusion:
Complies with the requirements of HG/T 5347-2018 for analytical grade.

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