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Cr
Chromium
Atomic no.:
24
Atom. weight: 51.996
Density: 7.1
Class:
Heavy metal
Melting point: 1857°C
Boiling point: 2672°C
Colour: silvery shiny
   
Discoverer: N.L. Vanquelin
Place: Paris, France
Year: 1780

Discovered in 1780 by N.L. Vanquelin in Paris, France. Chromium is a bright, blue/white metal with excellent corrosion resistance. It is obtained by the aluminum reduction of Cr2O3, the source of which is chromite, a double oxide of chromium and iron which generally also contains magnesium. It has an abundance within the earth's crust of approximately 100 ppm. Chromium is soluble in HCl and H2SO4, but not in H3PO4, HNO3 or HClO4 due to the formation of a stable and insoluble oxide layer on its surface; this, along with its hardness, has been used to advantage in the chromium plating of steel which has good corrosion resistance. Chromium is alloyed with nickel in the manufacture of heat resisting alloys, and with iron, or nickel and iron, to produce stainless and heat resistant steels. Chromium is an important trace element for humans as it assists in the manufacture of glucose.

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  entries 1 to 8 from 24 Gallery view   periodic table

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 Fine chromium powder, 100 grams - < 150µ 99.4% purity  Art. Nr. 005059  
Fine chromium powder, 100 grams - < 150µ 99.4% purity
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Chromium powder, 100 grams - < 150µ 99.4% purity

CAS No:  7440-47-3 

For laboratory use and elements collection.

Danger
GHS Classification:

H228 Flammable solid
H351 Suspected of causing cancer
P210 Keep away from heat/sparks/open flames/hot surfaces – No smoking
P241 Use explosion-proof electrical/ventilating/light/…/equipment
P280 Wear protective gloves/protective clothing/eye protection/face protection
P281 Use personal protective equipment as required
P405 Store locked up

 
Amount: 100g
Purity : 99.4%
Packing: glass bottle
10.00
- tax free
5-9 pcs.: 9.00 Euro
>9 pcs.: 9.00 Euro
Availability: 10 in stock

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 Acrylic Element cube - - Chromium Cr - 50mm  Art. Nr. 003234  
Acrylic Element cube - - Chromium Cr - 50mm
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The Sensation! Acrylic Element-blocks NEW!

Chromium Cr - ~ 10 grams Chromium pieces

The innovation! Selected element samples in amply amount embedded in 50x50x50mm first-class crystal clear acrylic (not cheap resin!) . Totally lightfast, high gloss polish. The text is embedded inside! Hand crafted! Made in the European Union! Each acrylic block is a unique and individual piece! EXTREMELY eye-catching!

These original acrylic cubes are used in many important and famous periodic table collections allover the world!

100% Handmade in the European Union!

 

Each cube comes in its separate original box!
     

Complete illuminated displays with our cubes are available on request

Amount: 1 St.
Purity : 99.9%
Packing: PE bag
65.00
- tax free

Availability: 3 in stock

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 150 grams Chromium Metal beads 99.9% purity  Art. Nr. 004229  
150 grams Chromium Metal beads 99.9% purity
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Pure chromium metal beads 99.9% purity 150 grams - in taper joint glass bottle.

 

Size of the bottle: H = 85mm x D = 41mm
The bottle will be shipped in vacuum sealed foil.

 

These highly shiny Chromium beads are ideal for your element collection or for lab use.

Size: 8 - 12mm

 

CAS: 7440-47-3   MDL: MFCD00010944   EINECS: 231-157-5

 

Amount: 250g
Purity : 99.95%
Packing: vacuum bag
100.00
- tax free

Availability: 3 in stock

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 Chromium rod 99.9% - ~46g - Ř 12.7 x 50mm  Art. Nr. 003376  
Chromium rod 99.9% - ~46g - Ř 12.7 x 50mm
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High purity fine ground Chromium rod

Industrial custom made product

Length 50mm - Diameter 12.7mm - Weight : ~46g

Ideal for comparation with our tungsten rod in same size which is available in our shop.

For your elements collection, for high temp applications, laboratory etc.

Amount: 1 St. / pc.
Purity : 99.9%
Packing: PE-foil
86.00
- tax free
5-9 pcs.: 81.00 Euro
Availability: 9 in stock

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 Chromium 3+ doped glass bead NEW!  Art. Nr. 004865  
Chromium 3+ doped glass bead NEW!
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Glass bead doped with 1% Chromium(III) oxide - NEW!

Size about 10mm . Material: Ba-P:Cr

Nice glass bead. Each one handmade of phosphate glass in our lab.

  • This time we used a bit less Chromium(III)-Oxide which results in this shiny green color.

Amount: 1 St. / 1 pc.
Purity : --
Packing: ampoule
20.00
- tax free

Availability: 3 in stock

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 Pure chromium fragments in ampoule 99.95% purity 5g  Art. Nr. 004060  
Pure chromium fragments in ampoule 99.95% purity 5g
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Pure chromium fragments in ampoule 99.95% purity 5g

These nice Chromium fractures are ideal for your element collection or for lab use.

Amount: 1 piece/Stk.
Purity : 99.95%
Packing: Ampoule
20.00
- tax free
5-9 pcs.: 19.00 Euro
>9 pcs.: 18.00 Euro
Availability: 70 in stock

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 Chromium - precision density-standard cube 1cm3  Art. Nr. 003589  
Chromium - precision density-standard cube 1cm3
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Chromium -  precision density-standard cube 1cm3 NEW!

Using finest materials, each density cube was lapped to 10x10x10mm by a mechanical engineering company with an accuracy of 0.01 millimeter. Each one separately ground and mirror polished it represents the theoretical density of the respective element by its weight. The weight is not affected by the laser inscription. Information such as element symbol, name and density is durable burned at the surface. Each element even shows its specific characteristis in colour and reaction with the laser. Altogether 25 elements are planned in a complete set in a wooden case.
Lead time: ~ 2 weeks

Amount: 1 St. / 1 pc..
Purity : ~99,95%
Packing: PE - bag
100.00
- tax free

***Lead time: ~ 2 weeks ***

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 Acrylic Element cube - - Chromium Cr - 50mm  Art. Nr. 004961  
Acrylic Element cube - - Chromium Cr - 50mm
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The Sensation! Acrylic Element-blocks NEW!

Chromium Cr - ~ 15 grams Chromium crystals

The innovation! Selected element samples in amply amount embedded in 50x50x50mm first-class crystal clear acrylic (not cheap resin!) . Totally lightfast, high gloss polish. The text is embedded inside! Hand crafted! Made in the European Union! Each acrylic block is a unique and individual piece! EXTREMELY eye-catching!

These original acrylic cubes are used in many important and famous periodic table collections allover the world!

100% Handmade in the European Union!

 

Each cube comes in its separate original box!
     

Complete illuminated displays with our cubes are available on request

Amount: 1 St.
Purity : 99.9%
Packing: PE bag
80.00
- tax free

All pictures are copyright protected and may not be used without our permission!

Request information
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