Jiangsu, China
Business Range:
Health & Medicine
Number of Employees:
14
Year of Establishment:
2008-01-08
Management System Certification:
ISO 9001
OEM/ODM Availability:
Yes
OEM/ODM Service
Sample Available
U.S. Warehouse
Distributorship Cooperation

Galla Chinensis Extract, Tannic Acid, Gallic Acid manufacturer / supplier in China, offering Natural Galla Chinensis Extract Tannic Acid Factory Directly Supply Tannin, Hemp Seed Extract Sale, Green Tea Extract Sale and so on.

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Natural Galla Chinensis Extract Tannic Acid Factory Directly Supply Tannin

Get Latest Price
Min. Order / Reference FOB Price
1 kg US $15-40/ kg
Port: Nanjing, China
Production Capacity: 1 Ton/ Month
Payment Terms: L/C, T/T, Western Union, Paypal, STS ESCROW
Certification: FDA, ISO 22000, SGS, Kosher
Assay Method: HPLC
Application Form: Injection, Lotion, Suppository, Paste, Tablet, Capsule
Application: Food, Health Care Products, Medicine
State: Powder
Extract Source: Galla Chinensis

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Basic Info

Model NO.: ZL2018-003
Molecular Formula: C76h52o46
Molecular Weight: 701.18
Extraction Type: Solvent Extraction
Grade: Food Grade/ Pharmaceutical Grade
Trademark: ZELANG
Transport Package: 25kg/Drum, Inner with Vacuum Packing
Specification: 93%, 95%, 98%
Origin: Nanjing, China
HS Code: 2932999099

Product Description

Tannic acid /Tannin
Synonym: Tannin, Gallotannic acid
M.F.&M.W.: C76H52O46 = 701.18
CAS registry number: 1401-55-4

Description: Light yellowish to brownish powder, soluble in 1 share Of water or ethanol; Soluble in acetone; Almost insoluble in chloroform or diethyl ether.

1. Industrial grade
Item First-grade product
Loss on drying, %≤ : 7.0
Water insoluble, %≤ : 0.3
Solution color≤ : 2.0
Content(dry weight), ≥ : 81.0

Application: Widely used in extract of Ge, manufacture of "lro ink", anti-corrosion of metal, treatment of slurry in petroleum well, raw materials of pharmaceutical industry

2. Electronicsl grade 
Characteristic: Light yellowish powder, soluble in 1 share of water or ethanol, soluble in acetone, insoluble in chloroform or ethyl ether

Content of Tannic Acid (dry base), %:  ≥ 99.5
Chloride, ppm:   ≤ 4.4
Pb, ppm: ≤ 2.0
Fe, ppm: ≤ 2.0
Sulfate, ppm: ≤ 3.0
Moisture, %  : ≤ 10.0
Use: Additive materials for fine chemistry and electronics field.
Storage: Airproof and protect from light
Packing: Net weight 25kg per drum

3. Pharmaceutical grade 
Characteristic: Light yellowish to light brownish powder, soluble in 1 share of water or ethanol, soluble in acetone, insoluble in chloroform or ethyl ether.

Content of tannic acid: ≥ 99.0%
Loss on drying: ≤ 7.0%
Water insoluble substance: ≤ 0.60%
Color: ≤ 1.0
Ignited residue: ≤ 0.20%
Gallic acid: ≤ 1.0

Application: Tannic acid for medicine has the antiseptic, enzyme-eliminating and convergent effects. Applied as antibiotics to treating tinea, eliminating toxic substances and stopping diarrhea etc.
Packaging: 25KGs/drum.

4. Food grade 
Characteristic: Light yellowish to light brownish powder, soluble in 1 share of water or ethanol, soluble in acetone, insoluble in chloroform or ethyl ether.

Main specifications:
Appearance:  Ivory, no odour
Heavy metal, %: ≤  0.002
Loss on drying, %: ≤ 9.0
As, %: ≤ 0.0002
Ignited residue, %: ≤ 1.0
Content, %: ≥  93

Packing & Storage :
Delivery Time: Around 3-5 workdays after your payment.
Package: In fiber-drums with two-plastic bags inside.
Storage: Stored in dry and cool place, keep away from strong light and heat.
Shelf Life: Two years when properly stored.

COA of 95%:


Items

Standards

Results

Method

Physical and chemical analysis :

Description

Light Yellow Powder

Qualified

Visual

)

Tannic Acid Content (Dry Basis)

≥95 %( UV )

97.2 %( UV )

UV

Mesh Size

100 % pass 80mesh

Qualified

CP2010

Identification

(+)

Positive

TLC

Odor

Practically odourless

Qualified

Organoleptic

Taste

Neutral/slight astringent taste

Qualified

Organoleptic

PH ( 1% In Water )

3-4

4

 

Residue On Ignition

≤1.0 %

0.2 %

CP2010

Loss on Drying

≤9.0 %

7.3 %

CP2010

Bulk density

30~45g/100mL

40g/100ml

CP2010

Gums, Dextrin Test

No turbidity

Qualified

 

Resins Test

No turbidity

Qualified

 

Gallic Acid

≤1%

0.75%

HPLC

Colour Gardner(1/10 alcohol)

≤5

2

 

Solubility

Very soluble in water,freely

soluble in acetone,in alcohol

Qualified

 

Residue analysis :

Heavy Metal

≤10ppm

Qualified

CP2010

( Pb )

≤2ppm

Qualified

GB/T 5009.12-2003

( As )

≤3ppm

Qualified

GB/T 5009.11-2003

( Hg )

≤1ppm

Qualified

GB/T 5009.15-2003

( Cd )

≤1ppm

Qualified

GB/T 5009.17-2003

Pesticides Residue

Meet USP Requirements

Qualified

USP34 <561>

Microbiological :

Total Plate Count

≤1000cfu/g

Qualified

AOAC990.12,16th

Yeast&Mold

≤100cfu/g

Qualified

AOAC996.08 , 991.14

E.coil

Negative

Negative

AOAC2001.05

Salmonella

Negative

Negative

AOAC990.12

General Status :

GMO Free

Complies

Complies

 

Non-Irradiation

Complies

Complies

 


Use of tannic acid in food applications is far more widespread[clarification needed] and significant amounts are used as process aids in beer clarification, aroma compound in soft drinks and juices. Equally important are applications in the wine industry, where it finds use as a natural clarifying agent, colour stabilizer and taste enhancer.

In many parts of the world, such uses are permitted. In the United States, tannic acid is generally recognized as safe by the Food and Drug Administration.

Tannins are a common impurity in the beverage ayahuasca made from mimosa hostilis root bark. Tannins contribute to the nausea and gastrointestinal upset associated with ayahuasca consumption. Addition of gelatin to ayahuasca binds to these tannins, causing them to sink.

In conjunction with magnesium and sometimes activated charcoal, tannic acid was once used as a treatment for many toxic substances, such as strychnine, mushroom, and ptomaine poisonings in the late 19th and early 20th centuries.

The introduction of tannic acid treatment of severe burn injuries in the 1920s significantly reduced mortality rates. During World War I, tannic acid dressings were prescribed to treat "burns, whether caused by incendiary bombs, mustard gas or lewisite. After the war this use was abandoned due to the development of more modern treatment regimens.

Tannic acid is still used in pharmaceutical applications to produce albumin tannate which is used as an antidiarrheal agent. Tannic acid is also used to produce tannate salts of certain antihistamine and antitussive products to impart increased stability or slow release properties to the active pharmaceutical ingredient. Further to this, tannic acid is the principle but perhaps minimally effective ingredient in antiallergen sprays.

Tannins have also been reported to exert many physiological effects, such as to accelerate blood clotting, reduce blood pressure, decrease the serum lipid level, produce liver necrosis, and modulate immunoresponses. This would explain common folklore such as that soaking feet in tannic acid (or strong tea) can treat or prevent blisters, foot odor and rough, dry feet.

Tannic acid is a common mordant used in the dyeing process for cellulose fibers such as cotton, often combined with alum and/or iron. The tannin mordant should be done first as metal mordants combine well with the fiber-tannin complex.

Similarly tannic acid can also be used as an aftertreatment to improve wash fastness properties of acid dyed polyamide. It is also an alternative for fluorcarbon aftertreatments to impart anti-staining properties to polyamide yarn or carpets. However, due to economic considerations currently the only widespread use as textile auxiliary is the use as an agent to improve chlorine fastness, i.e. resistance against dye bleaching due to cleaning with hypochlorite solutions in high-end polyamide 6,6-based carpets and swimwear.

Tannic acid is used in the conservation of ferrous (iron based) metal objects to passivate and inhibit corrosion. Tannic acid reacts with the corrosion products to form a more stable compound, thus preventing further corrosion from taking place. After treatment the tannic acid residue is generally left on the object so that if moisture reaches the surface the tannic acid will be rehydrated and prevent or slow any corrosion.

------This paragraph is quoted from Wikipedia ' Tannic acid '.

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