Wuxi Zehui Chemical CO.,LTD.

wuxi, China

We are offering nano zinc oxide ensure better physical properties and surface quality for extrusion profiles than powder form.the vulcanizates will obtain higher modulus and tensile strength, prevents scorch in chloroprene rubber compounds due to the localisation of powdered form zinc oxide.

we offer magnesium carbonate( synthetic) Processing Method:Soda Method, Ammonium Bicarbonate Method In pharmaceutical industry, pharmaceutical grade magnesium carbonate can be used fin anti-acid agent, drying, color-protecting agent, carrier, anti-caking agent, and the treatment of hyperacidity etc. As food grade products, it can be used as food additives and magnesium compensation. Magnesium carbonate is white monoclinic crystalline or amorphous powder. Its chemical compositions generally is expressed in x MgCO3· y Mg(OH) 2· z H2O, of which the proportions of x, y and z have several different kinds and can be 4:1:4, 4:1:5, 4:1:6, 4:1:7, 3:1:3 and 3:1:4. And nontoxic, odorless, stable in the air. Relative density is 2.16. Slightly soluble in water, and its aqueous solution shows weak alkaline reaction. Its solubility in water is 0.02% (15�). Easily soluble in acid and ammonium salt solution, it shall resolve and send out carbon dioxide while meeting with diluted acid. Heated to 300� and above, it shall resolve and produce water, carbon dioxide and magnesium oxide.

Processing method:brine-lime method, carbonation method, soda method，ammonia method magnesium oxide is widely used in neoprene, butyl rubber, styrene-butadiene rubber, fluorine rubber, adhesives, composites and other industries. And also used in the industries of paint, ink, plastic, oil, automotive industry, electrical wiring, cables, waterproofing, etc. magnesium oxide white amorphous powder, odorless, smell-less and nontoxic. It is soluble in acid and ammonium salt solution, difficult to dissolve in water, and insoluble in alcohol. And can be changed into crystal by high-temperature burning above 1000℃, and into dead-burned magnesium oxide or sintered magnesium oxide above 1500℃. When meeting with carbon dioxide in the air, it shall produce basic magnesium carbonate.

We offer magnesium hydroxide( synthetic). Processing method:brine-lime method, brine-ammonia method pharmaceutical grade magnesium hydroxide is widely used in pharmaceutical production on antacids, slow cathartic, and gastric acid. The acid reaction is faster, stronger, and lasting, and it does not produce carbon dioxide which can protect the ulcer surface. In the field of food , food grade magnesium hydroxide can be applied to health care products, it can be used as anti-caking agent, acid-resistant, filter aid, and antimicrobial colorants reagents, etc. magnesium hydroxide white crystalline or powder; and its aqueous solution show alkaline reaction; 2.36gcm3. It is soluble in diluted acid and ammonium salt solution and almost insoluble in water and alcohol. Its solubility �18��in water is 0.0009g100g. It is easy to absorb carbon dioxide in the air. When it is heated to above 200� in alkaline solution, it will become hexagonal crystal system crystalline. At 350�, it shall decompose into magnesium oxide and water, and change into magnesium oxide by losing water above 500�.