Product Hydroquinone CAS 123-31-9

Product Hydroquinone CAS 123-31-9

The aniline, manganese dioxide and sulfuric acid molar ratio of 1: 3: 4 was added to the reactor, the feed should be in the jacket through the chilled water control temperature below 10 ℃. The reaction was stirred for 10h, the reaction temperature gradually increased to about 25 ℃, generating benzoquinone. Then pass steam into the reactant for steam distillation, the distilled benzoquinone and water vapor are partially condensed, then flow into the reduction kettle, then iron powder with the molar ratio of benzoquinone of 1: 0.7 is added, heated to 90-100 ℃, stirring for 3 ~ 4h, the product of the reduction reaction hydroquinone. The reduced product Hydroquinone CAS NO 123-31-9 was filtered to remove the iron oxide residue, and concentrated under reduced pressure. Then add sodium metabisulfite, activated carbon, zinc powder, heated to boiling for bleaching. After hot filtration, the filtrate was slowly cooled to below 30 ℃, hydroquinone CAS NO 123-31-9 to needle crystallization, after centrifugation dehydration, adding boiling bed at 80 ℃ for drying, the finished product.

Usage of Hydroquinone CAS NO 123-31-9
Generally for photograph, dye, pesticide rubber, chemical industry, medicine, polymer retarder, desulphurization in fertilizer, urea synergist antioxidant, analyse chemical reagent and so.

Packing
25kg (net weight) kraft paper bag lined with two plastic bags.

Certification

We strictly complying with ISO9001 and ISO 2000 standard in manufacturing process, our lab and workshop tightly in accordance with GMP standard.

Our Advantage

1.Stable quality, high quality satisfy customer's high grade sourcing request.
2.Competitive price .
3.Correct delivery time promise.
4.Continuous improvement make sure the long-term cooperation.
5.Honest service for your whole sourcing process

Services

1.Cooperate with research institutions, we strictly control the process from raw material to finished product.
2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.
3.We can send the goods to your delivery address directly. It is relatively safe and fast. We have ready goods in stock.
4.Quick and clear response to customers questions.
5.Warm after sale service, we will help to solve the problems in your usage.
5.We could make our price discount if you place a substantial order with us.

Product expansion
1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the Raw Material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories.
2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.
3> Fragrance And Spices: Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.
4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, resins, additives, and other intermediates.
5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion.
6> Pharmaceutical Intermediates: The so-called pharmaceutical intermediates, refers to the production of pharmaceutical products in the process, the use of raw materials, materials, accessories and other intermediate products.
7> Agricultural Chemicals: Research and agriculture related chemical, including pesticide, plant growth regulator, fertilizer, compound fertilizer, herbicide etc.

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Product Categories : Organic Intermediate > Pharmaceutical Intermediates