 |
Specifications
| Item | Specifications |
| Appearance | White or light yellow crystalline powder |
| Assay % | ≥99.50 |
| Solubility（0.1M aq） | Clear ,colorless solution |
| PH(1% aq.) | 3.50-4.50 |
| Heavy metals,ppm | ≤5 |
| Water content，% | 8.00-8.90 |
| Ultraviolet absorbance 260nm（0.5M aq.） | ≤0.025 |
| Ultraviolet absorbance 280nm（0.5M aq.） | ≤0.020 |
| pKa 25℃ | 5.9-6.3 |
Usage
This product is used as a biological buffer.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
Specifications
| Item | Specifications |
| Appearance | White or light yellow crystalline powder |
| Assay % | ≥99.50 |
| Solubility（0.1M aq） | Clear ,colorless solution |
| PH(1% aq.) | 3.50-4.50 |
| Heavy metals,ppm | ≤5 |
| Water content，% | 8.00-8.90 |
| Ultraviolet absorbance 260nm（0.5M aq.） | ≤0.025 |
| Ultraviolet absorbance 280nm（0.5M aq.） | ≤0.020 |
| pKa 25℃ | 5.9-6.3 |
Usage
This product is used as a biological buffer.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
