Reductive agent SiCaBa,Silicon Calcium Barium ferroalloys

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
1000 m.t./month

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Packaging & Delivery

Packaging Detail:as requested
Delivery Detail:within 20 days

Specifications

1. Spec: Mg 1 - 8 %, Re 1 - 9 %. 
2. Size: As requested. 
3. ISO 9001:2008. 
4. FeSiMg ferroalloy mineral. 
5. 3000 MT / Mon

 

Description:

1. Uses the advanced smelting craft production the nodulizer product, the organization is compact, the ingredient is stable.

2. It does not have the deflection evenly, the MgO content is low.

3. The spheroidization response is steady, the magnesium absorption rate is high, the anti-decline time is long.

4. After sherardizing, the stone ball not a strike circle entire, tiny, the tendency is small.

5. granularity 0.5-6mm, 1-10mm, 1-20mm, 3-25mm

 

Technical parameter

This product is a kind of alloy that we add Calcium, Magnesium and Rare-earth to Ferrosilicon and also called as Magnesium alloy Nodulizer which is a good kind of Nodulizer. Its mechanical strength is high. It also has good desulfurization and deoxidization effects. Nodulizer for ductile iron foundry industry  

Brand

Chemical Composition(%)

RE

Mg

Ca

Si

Mn

Ti

Fe

Balance

FeSiMg6RE1

0.5-2.0

0.5-7.0

1.5-3.0

44.0

1.0

1.0

Balance

FeSiMg7RE1

0.5-2.0

6.0-8.0

≤1.5

44.0

1.0

1.0

Balance

FeSiMg7RE3

2.0-4.0

6.0-8.0

2.0-3.5

44.0

1.0

1.0

Balance

FeSiMg8RE3-A

2.0-4.0

7.0-9.0

≤2.0

44.0

1.0

1.0

Balance

FeSiMg8RE3-B

4.0-6.0

7.0-9.0

2.0-3.5

44.0

1.0

1.0

Balance

FeSiMg8RE5

6.0-8.0

7.0-9.0

≤3

44.0

2.0

1.0

Balance

FeSiMg8RE7

6.0-8.0

7.0-9.0

≤3

44.0

2.0

1.0

Balance

FeSiMg10RE7

6.0-8.0

9.0-11.0

≤3

44.0

2.0

1.0

Balance

FeSiMg9RE9

8.0-10.0

8.0-10.0

≤3

44.0

2.0

1.0

Balance

FeSiMg8RE18

17-20.0

7.0-10.0

≤3

42.0

4.0

2.0

Balance



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The active ingredient in bleach is the hypochlorite ion ClO- (Na+ salt) which is a strong oxidizing agent: ClO- + H2O + 2e- -> Cl- + 2OH- E = 0.89V [1] I have +0.81 V from another source. From this reduction potential bleach should from a thermodynamic stand point oxidize just about every common metal with the exception of gold (Au) and possibly silver (Ag) as they are have higher reduaction potentials [1]. Let's take Ni as an example: Ni2+(aq) + 2e- -> Ni(s) E = -0.25 V turning the last equation around, changing the sign and combining it with the first equation we have Ni(s) + ClO- + H2O -> Ni2+(aq) + Cl- + 2OH- E = +1.14 V the +ve potential makes it highly allowed. But thermodynamics does not tell about the rate. What probably happens is that Ni(OH)2 precipitates and protects the surface from further attack Ksp for Ni(OH)2 is 5.48×10-16 [2]. Metals that are amphoteric (react with acid and base) such as Al and Zn will probably dissolve in bleach soln. But again the surface of Al is Al2O3 that may protect the Al from attack at RT. Things to think about.
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