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Established in September 1985, Yue Dong Fine Chemicals Factory is specialized in manufacture of EDTA series products and value added iodine salt and cobalt salt. As the annual output of EDTA series products is 300t, the factory has been the largest manufacturer of the said products in South China. Now the factory occupies an area of 4000m2, including site area of 2000m2, having total staff of 76, including 3 senior professional engineers and 13 intermediate technical personnel. The factory's organizations include technical department, finance department, sales department, testing center, workshops and measuring network, etc.

The factory is the "contracting and credit" enterprise of the province, and was given the certificate of quality inspection structure by the Chemical & Industrial Ministry in 1995.

Our products have been used and approved by large manufacturing enterprises in China in the past years, and the complexone III, in particular, has been exported to Southeast Asia and Taiwan, receiving praises for the regular stock and product quality.

To adjust us for the further development, the factory is cooperating with universities and research institutes for technology support to study and develop new products, and will participate in broader market with more products of better quality.

Director: Zhen Shaobao

Add: East of Beidun Tea Factory, Shantou, China

P.C.: 515065

Office: B/4F, No. 7 North Jinxin Road, Shantou, China

Tel: +86-754-8331886

Fax: +86-754-8253513

E-mail: 00419<sales@hi2000.com>

Product List

EDTA

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EDTA disodium salt

1. Molecular formula: 372.24
2. Molecular weight: C₁₀H₁₄N₂O₈Na₂¡¤2H₂O
3. Assay: 99.0%
4. Complexation reaction: qualified
5. Water solution reaction: qualified
6. Cl: 0.02
7. SO₄: 0.01
8. Fe: 0.005
9. Heavy metal(Pb): 0.005
10. Water solubility test: qualified
11. Uses: luxuary soap, detergent, shampoo, cosmetics, silk printing and dyeing, electroplating, pharmaceutical and chemical, food tin and petroleum smelging.
12. Packing: 25kg plastic lined woven bag, 1000g X 20bag.

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EDTA tetrasodium salt

1. Assay 99.0%
2. Impurities(%):

   Cl: 0.004
   Fe: 0.001
   Complexation reaction: qualified
   Water solution reaction: qualified
   PH(5% solution): 110.5
    

3. Storing and shelf life: It should be stored in ventilated and dry places. The seldom caking on account of moisture absorption will not effect the quality.
4. Packing: 1000g X 20bag, inner double plastic bag and outer paperboard carton.

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Potassium phosphate dibasic

1. Molecular formula: K₂HPO₄¡¤3H₂O
2. Molecular weight: 228.22
3. Specifications:

   Assay: 99.0%
   Water solution reaction: qualified

4. Content of impurity in maximum(%)

   Clarity: qualified
   Water insolubility: 0.01
   Cl: 0.002
   SO₄: 0.01
   NO₃: 0.001
   Na: 0.05
   Mg: 0.001
   Fe: 0.001
   As: 0.0001
   Heavy metal(Pb): 0.001

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Cobalt sulfate

1. Molecular formula: CoSO₄¡¤7H₂O
2. Molecular weight: 281.10(international atomic weight in 1975)
3. specifications: (the factory standard):

   Assay(Co): 20.6%
   Ni: 0.1%
   Fe: 0.002%

    

1. Appearance: colorless and odorless crystal
2. Solubility: 1g potassium iodide dissolves in 0.7ml water, 23 units of alcohol and 2 units of glycerine.
3. Test: positive to K and I
4. Alkalinity: <0.01M£ºHC1/0.5ml
5. Clarity: 10% W/V solution is clear and colorless.
6. Heav metal: <10PPm
7. Fe: <20PPm
8. IO₃: not turn to blue with 2 minute
9. SO₄: <150PPm
10. S₂O₃: starch solution as indicator, 10ml water solution of KI(10%) and 0.1ml 0.006M will result in blue.
11. Purity of dry product£º99.0%-100.5% max.

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