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Product name: pyrogallic acid
Chemical name: 1,2,3-trihydroxybenzene
Molecular formula: C6H3(OH)3
Molecular weight: 126.11
Structural formula:
Property: This product is a white shiny crystalline powder, soluble in 2 parts of water, 1 part of ethanol or 2 parts of ether.
Specifications: in line with the national industry standard LY-T 2862; in line with the US "chemical reagent standards"; Lawson V version and Japanese national standard K8780 reagent specifications.
Technical index:
Industrial grade | CP grade (chemically pure) | AR level (analytic pure) | |
Appearance | White powder | White powder | White powder |
content | ≥99.00 | ≥99.50 | ≥99.80 |
Water solubility | Clear and transparent | Clear and transparent | Clear and transparent |
Melting point℃ t | 131-135℃ | 132-135℃ | 132-135℃ |
Residue on ignition% | ≤0.025 | ≤0.02 | ≤0.02 |
chloride% | ≤0.002 | ≤0.001 | ≤0.001 |
Sulfate% | ≤0.005 | ≤0.005 | ≤0.005 |
Heavy metal ppm | ≤5.0 | ≤5.0 | ≤5.0 |
Uses: Widely used in chemical reagents and chemicals, pharmaceutical intermediates, fine chemicals, new photosensitive materials, food preservation, textile printing and dyeing, light industrial daily chemicals, color printing and plate making, microelectronics industry, rare metal analysis, gas analysis, photo development It can also be used for the analysis and determination of oxygen, antimony, bismuth, cerium, iron, molybdenum, tantalum and niobium.
Storage: Avoid moisture and light, sealed tightly, no contact with metal.
Product validity: two years.
Packing: packed in cardboard drums, net weight 25 kg per drum.
Manufacturing
