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Home > Products >  Gallic Acid anhydrous

Gallic Acid anhydrous CAS NO.149-91-7

  • FOB Price: USD: 1.00-1.00 /Metric Ton Get Latest Price
  • Min.Order: 1 Kilogram
  • Payment Terms: L/C,T/T,MoneyGram,Other
  • Available Specifications:

    Optimal grade(1-5)Metric TonOptimal grade(5-20)Metric Ton

  • Product Details

Keywords

  • Gallic Acid anhydrous
  • Gallic Acid
  • Gallic Acid

Quick Details

  • ProName: Gallic Acid anhydrous
  • CasNo: 149-91-7
  • Molecular Formula: C7H6O5
  • Appearance: A white crystalline powder
  • Application: Mainly used in medicine、dyestuff、chemi...
  • DeliveryTime: 7 day
  • PackAge: 25KG
  • Port: tianjin china
  • ProductionCapacity: 10 Metric Ton/Month
  • Purity: ≥99.0
  • Storage: Stored in a well-closed container away...
  • Transportation: shipping by port or air
  • LimitNum: 1 Kilogram
  • Hydroxyl Value: ≤ 9.0%
  • Water Content: ≤ 0.6%
  • APHA color Pt-Co Scale: 30-110
  • Heavy Metal: <0.1%
  • ≤ 9.0%: ≤0.001

Superiority

Hebei yanxi chemical co. LTD.  has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are Titanium dioxide(CAS13463-67-7). Lead acetate (cas: 6080-56-4), phenylacetamide (cas 103-81-1), Cyromazine CAS:66215-27-8, citric acid (5949-29-1), methyl-pyridine (35575-96-3) 2-Phenylacetamide (CAS 103-81-1);Trimethylpyruvic acid (CAS 815-17-8);2-Hydroxypropyl methacrylate (CAS 27813-02-1);2-Hydroxyethyl methacrylate(CAS 868-77-9);Allyl isothiocyanate(CAS 57-06-7);2,4-DichlorobenzylalcohCAS1777-82-8);N,N,N',N'-Tetrakis[4-(dibutylamino)phenyl]benzene-1,4-diamine(CAS 4182-80-3);o-Chlorobenzylidenemalononitrile(CAS 2698-41-1);4-Bromobut-1-ene(CAS 5162-44-7); Phthalide (CAS 87-41-2); Allyl acetoacetate (CAS 1118-84-9). Clove oil, iron powder
 
After many years of efforts, we have established stable and friendly business relations with dozens of European and American pharmaceutical companies, multinational chemical companies and importers.At home and many production plants and research and development units have established long - term commission processing and production relations.We have a number of laboratories specializing in technology development and custom synthesis, as well as some production bases, mainly in hebei, sichuan, jiangsu and shandong.
 
Our company possesses the right of self-support import & export, a strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.
 
Looking to the future, we will adhere to the spirit of “professional, innovative, integrity, development”, and adhere to the management philosophy of “customer-orientation and pursing development via integrity” and through which to provide customers with first-class products and service. We sincerely welcome friends both at home and abroad to visit our company and hope to achieve win-win cooperation with you!

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11. Raw materials from Chinese origin

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Details

Gallic acid

   

Production capacity: 2000 T/Year

Other name:gallnut acid

Chemical name3,4,5-Trihydroxybenzoic acid

Mol. form and Mol. wt. C7H8O6   188.13
DescriptionA white or white crystalline powder. Soluble in 85 proportions of water, 6 alcohol and 2 boil-water, slightly soluble in ether.
  Specification: Comply with the requirements of European-93 (1-class) Standard, JIS (1-class)standard, U.S.P.21 edition(1985), superior grade.

Technical data:

Purity:            %   ≥99

Sulfate:         ppm  ≤10

Tannic acid test:   ppm  ≤1.0

Loss on drying:    %   ≤10.0

Residue on ignition: %   ≤0.1

Turbidity:         ppm ≤10

Color number:    fan  ≤200

UsageMainly used in medicine、dyestuff、chemical and synthesis industry ,also used in analysis in rare metal.  

Storagekeep in a well-closed container.

Packing: weave bag with plastic bag inside, N.W. 25kg/bag.            

PYROGALLIC ACID

 

Production capacity: 600 T/Year

Other namePyrogallol, 1,2,3 - Benzenetriol
Chemical name:1,2,3 - Trihydroxybenxene 
Mol. form and Mol .wt.CH6(OH)3  126.11
DescriptionA lustrous crystalline white powder, Soluble in 2 proportions of water, 1 alcohol and 2 ether.
SpecificationComply with the requirements both U.S.A." Reagent

Chemical and Standard" by Joseph Rosin Fifth-edition and JIS K8780 standard.

Technical data:        tech grade          CP grade         AR grade

Appearance:              White powder           White powder        White powder

Purity %:                   ≥99.2              ≥99.5           ≥99.8

Water solubility:             clear                  clear               clear

Melting point :           131~135           132~135       131~135

Residue on ignition %:        0.025            0.02          0.02

Chloride %:                 0.002            0.001         0.001

Sulphate %:                  0.005            0.005         0.005

Heavy metal ppm:            5                5            5
Usage: used in analyse&mensuration of oxygen, antimony, bismuth, cerium, iron, molybdenum, tantalum and niobium etc; also widely used in pharmaceutical, dyestuff, chemical and food industries; developer in photography.
Storagekeep in a well-closed container.

Packingcircinal-paper barrel with plastic bag inside, N.W. 25kg/bag.               

PROPYL GALLATE

 

Production capacity: 800 T/Year

Other nameGallic acid progal, PG
Chemical namePropyl - 3,4,5 - Trihydroxybenzoate 
Mol. form and Mol. wt.C10H12O5;212.21
DescriptionA white to creamy-white crystalline powder; odourless.

Soluble in 1000 proportions of water, 3 alcohol, 3 aether, and 2000 arachis oil.
  SpecificationComply with the requirement of both state standard GB3626-82 and B.P.1980 edition, U.S.P.XXI(1985)edition; U.S.A.FCC-IV standard.

Technical data:

Appearance: white or almost white crystalline powder

Purity:            %   98-102

Melting point:     ℃   146--150

As:              %   ≤0.0003

Heavy metal:      %   ≤0.001

Loss on drying:    %   ≤0.5

Residue on ignition:  %   ≤ 0.1

Colour number:     fan   ≤50
Usage: mainly used as antioxidant additive in fattiness, oleaginous foods and

medicinal preparations.

StorageEscape from light, storing in the airtight vessel, prevent from contacting with metal .

Packing:circinal-paper barrel with plastic bag inside, N.W. 25kg/drum.                            Chinese name: gallic acid in Chinese alias: times acid;Times acid;Three, four, five, three hydroxyl benzoic acid;Three, four, five, three hydroxyl benzoic acid;Gallic acid.See more Chinese alias English name: gallic acid English alias: BETZ 0276;Kyselinagallova;Gallic Acid.Gallic acid.Gallic;Read more English nickname CAS no. : 149-91-7 molecular formula: C7H6O5 molecular weight: 170.12000 the precise quality: 170.02200 PSA: LogP 97.99000:0.50160

Physical and chemical properties
Appearance and properties: white crystalline powder density: 1.694 melting point: 252 ° C (dec) (lit) boiling point: DHS C at 760 mmHg flash point 501.1:271 DHS C refractive index: 1.73 water solubility: 12 g/L cold water storage conditions: low temperature warehouse, ventilated, dry steam pressure: 7.32 e-11 mmHg at 25 ° C
Safety information
Customs code: 2918290000 WGK Germany: 2 dangerous category code: 37/38 R36 / safety instructions: S26 - S36 - S24: no. 25 rtecs LW7525000 dangerous mark: Xi: Irritant
Check all production methods and purposes
Production methods


From Chinese gall.The main components in Chinese gall tannins, hydrolyzed tannins, soluble in hot water, has the astringency, is a kind of amorphous and complex organic compounds.Chinese gallnut tannins consists of gallic acid, double acid and glucose in the form of glucoside or ester formation of the complex mixture.Tannic acid by the pressurized hydrolysis is generate gallic acid and glucose.When hydrolyzed into Mr With gallic acid ester, again by double gallic acid ester hydrolysis into gallic acid, hydrolysis temperature is 133-135 ℃, pressure is 0.18-0.2 MPa.Starting from the booster to 0.18 MPa reaction for 2 h at the end.Compared with atmospheric hydrolysis, can save, sulfuric acid and steam production capacity can be increased by 25%.


use




Has antibacterial effect, but in the treatment of bacillary dysentery.Have convergence, hemostatic, anti-diarrhea effect.Can be used as a preservative.To the preparation of pyrobitumen medium of gallic acid, medicine, ink, dye and explosion-proof agent, etc.Also used as a developer and detect free inorganic acid, dihydroxyacetone, alkaloid and metal such as analytical reagent.     

 

 

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