Gallic acid 95-52-3
Appearance: Colorless crystalline needles or prisms
Gallic Acid Content (dry basis): 99.0%min
Tannie Acid Test: no cloudy
Water Dissolved Experiment: no cloudy
Chroma:180max
Turbidity:10max
[SO42-]:0.02%max
[Cl-]:0.01%max
Residue On Ignition:0.1%max
☑ Gallic acid is commonly used in the pharmaceutical industry. It is used as a standard for determining the phenol content of various analytes by the Folin - Ciocalteau assay; results are reported in gallic acid equivalents. Gallic acid was found to show cytotoxicity against cancer cells, without harming healthy cells. Gallic acid is used as a remote astringent in cases of internal haemorrhage. Gallic acid is also used to treat albuminuria and diabetes. Some ointments to treat psoriasis and external haemorrhoids contain gallic acid.
☑ Gallic acid is an important component of iron gall ink, the standard European writing and drawing ink from the 12th to 19th century with a history extending to the Roman empire and the Dead Sea Scrolls. Pliny the Elder (23-79 AD) describes his experiments with it and writes that it was used to produce dyes. Galls (also known as oak apples) from oak trees were crushed and mixed with water, producing tannic acid (a macromolecular complex containing gallic acid). It could then be mixed with green vitriol (ferrous sulfate) — obtained by allowing sulfate - saturated water from a spring or mine drainage to evaporate — and gum arabic from acacia trees; this combination of ingredients produced the ink.
☑ It has also been used as a coating agent in zincography.
☑ It can be used to produce polyesters based on phloretic acid and gallic acid.
25kg/bag
Not dangerous goods
☑ More than 30 years production experience;
☑ Registered material under EU-REACH regulations;
☑ Product approved by multinationals in several industry;
☑ Just-in-time Delivery:1 week lead time.
☑ We have complete quality management system, not limited to sampling, method of analysis, sample retainment, Standard operation process;
☑ Freemen ensures the consisitency of quality, the strict process of management of changes is followed, including process and equipment, raw material supplies, packing;
☑ The sample could arrive in your hands within 20 days for international customers;
☑ The minimum order quantity is based on one package;
☑ We will feedback to your enquires within 24hours, Dedicated technical team will follow up and ready to give solutions if you have any request;
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