CHINA METALLURGICAL IMPORT & EXPORT  LIAONING MAGNESITE COMPANY      


Home

Feedback

Site Map

Contact

Chinese Version

 

 

 

 

Products
Services
History
Factory
Offices
About Magnesite

 

 

 

 

Other Chemical Products

 

1. Borax  

Item Specifications
Best Quality First Quality
Na2B4O710H2O % min. 99.5 95.0
Carbonate (counted as CO2) % max. 0.1 0.2
Insoluble substance in water % max. 0.04 0.04
Sulphate (counted as SO4) % max. 0.1 0.2
Chloride (counted as Cl) % max. 0.03 0.05
Ferro % max. 0.002 0.005

It is borate mineral, also called sodium borate decahydrate salt, molecular formula is Na2B4O710H2O (disodium tetraborate decahydrate), it is colorless, tasteless crystal grain or powder. Pure borax is mostly used as feed material for making fiberglass as well as buffer solution, medicine, cleaning agent, preservative and fluxing agent. 

 

 

2. Boric Acid

Item Best Quality
Boric Acid % min. 99.6 - 100.8
Insoluble substance in water % max. 0.01
Sulphate (counted as SO4) % max. 0.1
Chloride (counted as Cl) % max. 0.05
Ferro % max. 0.002

Molecular formula is H3BO3, colorless and transparent crystalline, with glass glance, mainly used as materials for making borosilicate glass, medicine, pigment and cosmetic.

.

3. Calcium Metaborate 

Items Grade B
B2O2  % 40.5 - 41.5
CaO  % 32 - 36
MgO  % max. 1.2
Na2O  % max. 0.5
Impurities  % max. 3.5
Liberated Moisture  % max. 1.5
Size  100% passing through 50 mesh, 15% max. of sieve residue above 200 mesh

This is a new material artificially made by synthetic method, which is  widely used in chemical industry in virtue of functions of fusion assistance, antiflaming,  drying speed-up and sterilization. It is often used as prime paint of anti-rust paint, antiflaming paint, anti-fog agent and bactericide as well as catalyzer in chemical industry. It is also a new material in non alkali glass industry and performs better than boric acid. It can be also used as antifreezer and lubricant. Right amount of calcium metaborate added in gasoline or diesel oil will make the fuels more efficient. 

It is white or offwhite powder. The molecular formula is Ca(BO2)22H2O or CaOB2O22H2O.

 

4. High Purity Magnesium Hydroxide

Items

Fines-A

Fines-B

A

B

Mg(OH)2 ,%, min.

99.5

99

99.5

99

Loss on ignition,%

30-33

30-33

30-33

30-33

Acid-insoluble substance ,%, max.

0.01

0.05

0.01

0.05

Cl ,%, max.

0.1

0.1

0.1

0.1

Water %, max.

0.5

0.5

0.5

0.5

Ca %, max.

0.005

0.01

0.005

0.01

Si, %, max.

0.0005

0.01

0.005

0.01

Fe%, max.

0.002

0.005

0.002

0.005

Na%, max.

0.005

0.01

0.005

0.001

K%, max.

0.005

0.01

0.005

0.01

As%, max.

0.0003

0.0005

0.0003

0.0005

Pb%, max.

0.0005

0.001

0.0005

0.001

Al%, max.

0.005

0.01

0.005

0.01

Size, D50 μm

1-5

1-5

40-50

40-50

Magnesium Hydroxide is a white powder; formula is Mg(OH)2, specific gravity 2.36; , very slightly soluble in water; easy to absorb carbon dioxidefrom the air; decomposing 
at 350 C.

It is obtained by reacting magnesium chloride with ammonia. Magnesium chloride is available from saltlake brine (bischofite)  Magnesium Hydroxide is an inert filler, flame
retardant and smoke suppressant for plastics, synthetic rubber, reinforced polyesters, phenolics, and urethane foam. Magnesium hydroxide releases its 31% water when 
heated to above 325 C, which cools the product below flash point to reduce fire occurance. It is also widely used in the refining of sugar, in extraction of magnesium metal, 
in the processing of uranium, and in the sulfite wood pulp process. In the environmental protection, it is as flue-gas desulfurizer, which can take the place of caustic soda 
and lime as neutralizer in acid wastewater; used as oil additives to have roles of antiseptic and desulfurization. Medicinally it, in the form of a mixture (milk of magnesia), is  
used as an antacid and as a osmotic laxative. Also used in the electronics industry, and used as heat preservation material and as raw material to manufacture other 
magnesium salt products.

 

5. Magnesium Chloride

Item Data
Magnesium chloride % min. 46% 
Sulphate % max. 2.8% 
Alkaline metal chloride % max. 0.9% 

There are yellow flakes and white or clear flakes. Their major applications are as binder in making refractory in metallurgical field as well as the raw material in producing magnesium metal; or to be used for making various magnesium salts in chemical field, such as magnesium oxide, magnesium hydroxide, and magnesium carbonate, as well as the raw material in making antifreeze, dust preventive, and flame-retardant; or  to be used in building material field together with other materials to make magnesia cement, abrasive stones, artificial marbles, magnesia tiles, glass fiber magnesia plates etc.; or  as additive in food industry, for example as coagulant making bean curd; or to be used as snow melting agent on icy road; and/or used in making magnesium fertilizer, potassium magnesium fertilizer, and cotton defoliant in agriculture field.

 

If you have any question or comment please leave a message in our Feedback Page or contact us by:

Phone: (411) 8364 8293,    Fax: (411) 8363 7530,    Email: sales@magnesite.com.cn

---------------------------------------------------------------------------
Copyrights (C)  China Metallurgical Import & Export Liaoning Magnesite Co.
- CMIE LMC - since 1987 -

辽ICP备05024119号-1