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Qingdao Fraken International Trading Co., Ltd.

Propyl Gallate, Gallic Acid, Methyl Gallate manufacturer / supplier in China, offering High Quality Gallic Acid, Pyrogallic Acid & Propyl Gallate, Cyanocobalamin Injection / Vitamin B12 Injection, Good 2ml Vitamin B Complex Injection and so on.

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Supplier Homepage Product Food additives High Quality Gallic Acid, Pyrogallic Acid & Propyl Gallate

High Quality Gallic Acid, Pyrogallic Acid & Propyl Gallate

Purchase Qty.:
(kg)
1-99 100+
FOB Unit Price: US $50 US $25
Purchase Qty. (kg) FOB Unit Price
1-99 US $50
100+ US $25
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Production Capacity: 10, 000mt Per Yer
Transport Package: 25kgs/drum
Payment Terms: L/C, T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: PG
  • Storage Method: Normal
  • Type: Antioxidant
  • Odor: Odorless
  • Trademark: Fraken
  • Origin: China
  • Packaging Material: Paper
  • Shelf Life: >12 Months
  • Resource: Natural
  • Form: Powder
  • Specification: Export
  • HS Code: 291829
Product Description
Gallic Acid
Pyrogallic Acid
Pyrogallol
Methyl Gallate
Ethyl Gallate
Propyl Gallate
Octyl Gallate
Lauryl Gallate
Dodecyl Gallate
18 Erter Gallate

Gallic acid
Chemical Name: 3, 4, 5-Trihydroxybenzoic acid
Molecular formula & Molecular weight: C7H8O6 / 88.13
Appearance: White or white crystalline powder.
Quality index: European standard -93 (first grade), JIS (first grade), AP21 (1985), Top grade.
Uses: Widely used in medicine, dyestuff, chemicals and organic synthesis, and also used for the analysis of rare metal.
Storage: Moistureproof and avoid light, sealed storage
Packing: Plastic bag lined woven bag Net wt 25kg

Pyrogallic Acid
Chemical Name: 1, 2, 3-Benzenetriol.
Molecular formula & Molecular weight: C6H3(OH)3; 126.11
Appearance: White gloss crystalline powder.
Quality index: Chemical reagent standard, V and K8780 reagent
Uses: Used to analyze and determine oxygen, antimony, bismuth, manganese, iron, molybdenum, tantalum, niobium, etc. Also widely used in medicine, dye, chemical and food industries, and can used as a developer.
Storage: Moistureproof and avoid light, sealed storage
Packing: Plastic bag lined cardboard round drum, Net wt 25kg.

Propyl Gallate
Chemical Name: Propyl 3, 4, 5-trihydroxybenzoate
Molecular formula & Molecular weight: C10H12O5; 212.21
Appearance: White to milky white crystalline granules
Quality index: In accordance with USP26, Chemical reagent standard, FCC-IV.
Uses: Used in fat, greasy food and pharmaceutical preparations as anti-oxidant additive.
Storage: Sealed container, in dark place, no contact with metals.
Packing: Plastic bag lined cardboard round drum, Net wt 25kg.

Specification:

Appearance

White or almost white, crystalline powder

Solubility

Very slightly soluble in water, free soluble in alcohol and in ether. 

It dissolves in dilute solutions of alkali hydroxides.

Identification

First identification: B;  Second identification: A,C,D

A. Melting Point: 148 - 151 °C 

B. Infrared absorption

C. Gallic Acid test by TLC           

D. Bismuth subnitrate test (bright yellow precipitate) 

Melting Point 

148  - 151 °C

Appearance of solution

Clear and not intensely colored than reference solution BY5

Gallic Acid    

Complies by TLC

Total Chlorine 

200 ppm max

Chlorides   

100 ppm max

Heavy Metals (As Pb)

10 ppm max

Loss on Drying

0.5% max (1g, 100 -105 °C)

Zinc     

25 ppm max

Sulphated Ash

0.1% max

Assay        

97.0 -103.0%


Ethyl gallate
Alias: 3, 4, 5-Trihydroxybenzoic acid ethyl ester; Ethyl 3, 4, 5-trihydroxybenzoate; Gallic acid ethyl ester; Ethyl 3, 4, 5-trihydroxybenzoate
CAS No.: 831-61-8
Molecular formula: C9H10O5
Molecular weight: 198.1727
Density: 1.424G/cm3
Melting point: 151-154 º C
Boiling point: 447.3° C at 760 mmHg
Flash point: 185° C
Vapor pressure: 1.29E-08mmHg at 25° C
Uses: Antioxidant for oil, food additive and pharmaceutical intermediate


Dodecyl gallate

CAS No.: 1166-52-5
Alias: Lauryl gallate; Dodecyl 3, 4, 5-trihydroxybenzoate; Dodocyl gallate, EINECS 214-620-6
Molecular formula: C19H30O5
Molecular weight: 338.44
Assay: ≥ 98.5%
Loss on dry (90 º C drying): 0.5%
Ash: 0.05%arsenic: 3mg/kg
Heavy metals: 30mg/kg
Melting point95-99 º C
Water-solubility: Undissolved

Methyl gallate
CAS No.: 99-24-1[1]
Molecular formula: C8H8O5
Molecular weight: 184.1461
Density: 1.501g/cm3
Melting point: 201-203 º C (157 º C, hydrate or crystallization of solvation).
Boiling point: 450.1° C at 760 mmHg
Flash point: 190.8° C
Vapor pressure: 1.02E-08mmHg at 25° C
Descriptors: Monoclinic ribbed crystal(methanol). Soluble in hot water, ethanol, ethyl ether
As the intermediate of biphenyl bisphenol and other drugs. And rubber antioxidant
Functions: Used as food additive
Appearance: White or milky white crystal
Assay: 99.8%
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