China Wholesale Propyl Gallate Antioxidant Factories - Pyrogallol – Sanjiang
China Wholesale Propyl Gallate Antioxidant Factories - Pyrogallol – Sanjiang Detail:
Introduction: Pyrogallol
is a chemical reagent and chemical raw material with multiple uses. It is produced in the manner it was first prepared by Scheele (1786): heating gallic acid. Presently gallic acid is obtained from tannin. Heating induces decarboxylation 。It is widely used in pharmaceutical synthesis, dyes, foods, pesticides and electronic products
Appearance:White crystalline powder
Chemical name: Benzene-1,2,3-triol
Other names:1,2,3-Trihydroxybenzene,Pyrogallic acid
Molecular formula: C6H3(OH)3
Molecular weight: 126.11
Melting point:309°C
CAS Number:87-66-1
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.
Feature
Melting point is 131 ~ 134 ℃, boiling point is 309 ℃, relative density is 1.46. UVλmax2. 88nm when pH =5.4 in water. Soluble in water, alcohol, ether, slightly soluble in benzene, chloroform and carbon disulfide.
Storage
Avoid moisture and light, sealed tightly, no contact with metal.
Packing
The product is packed in cardboard drums with a net weight of 25 kg per barrel.
Application
1. Cosmetic additives
2. Important catalysts and additives in chemical industry
3. Strong reducing agent and fungicidal in medicine
4. One of the important formulas of feed
5. Highly effective and low residual pesticide
6. New imaging materials, metallurgical flotation agent
Specifications
Specifications |
|
|
|
Implementation standards |
A.R |
C.P |
Enterprise Standard |
Purity |
≥99.5% |
≥99.0% |
≥98.0% |
Melting point |
131~136 |
131~136 |
131~136 |
Residue on ignition |
≤0.025% |
≤0.05% |
≤0.1% |
Water solubility |
Clear without turbidity |
Clear without turbidity |
— |
Chloride |
≤0.001% |
≤0.002% |
— |
Sulfate |
≤0.010% |
≤0.010% |
— |
Gallic acid test |
Without turbidity |
Without turbidity |
— |
heavy metal |
≤10 ug/g |
— |
— |
Packing |
Woven bag, 25kg / bag |
cardboard bucket, 25kg/drum |
cardboard bucket,25kg/ |
Product detail pictures:
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