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gallic acid cas 149-91-7 manufacturer supply
Assay: 98% 99%min, 99.5%min
Appearance: white powder
Capacity: 300MT per month
Packaging: 25kg/drum
Sample: available
Category: API
Gallic acid
Chemical Name: Gallic acid
CAS No.:149-91-7
Molecular Formula: C7H6O5
Molecular weight: 170.12
Gallic acidStructure:
Appearance: white powder
Assay: Food grade anhydrous99.5%
Gallic acid Typical Properties
Item | Standard |
The amount of gallic acid content (dry basis) % | 99.50 min |
Loss on drying% | 0.50max |
Tannic acid test | No cloudy |
Water dissolved experiment | No cloudy |
Chroma (Platinum-cobalt color number) | 180 max |
Turbidity | 10 max |
Sulfate (As SO42-) % | 0.02 max |
Residue on ignition % | 0.1 max |
CL- % | 0.02 max |
Gallic acidUsage
It is mainly used as a coupler of blue and black ink.
1. The pharmaceutical industry is used to prepare TMP, a sulfonamide synergist, and as a formulation for SMZ, SDB and other sulfonamides.
2. The food industry is used to prepare preservative propyl gallate.
3.The national defense industry is used to prepare explosion-proof agents. In addition, it can also be used in the production of mordant dyes and as developer, etc.
Gallic acidPackaging and Shipping
Packing: 25kg/drum
Delivery: delivery within 3-5working days
Gallic acidStorage
Avoiding light and drying
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