Laboratory equipment

 

Already in 1968, Johnson Matthey began to produce crucibles made from dispersion hardened platinum. The superior microstructure allows for higher strength and stability. As a rule, the service life is at least doubled. Depending on the strain put on it, it may even be tripled because the grain growth is permanently suppressed.

Apart from platinum, we also manufacture our crucibles and bowls from alloys of platinum with gold, iridium or rhodium. For oxide melts and crystal growth we offer custom-made devices made of pure iridium.

 

 

 Material  Appliance  recommended
 Operating temperature
 max. Temperature
 Platinum  Crucibles, bowls  1400°C  1550°C
 Platinum ZGS  Crucibles, bowls  1400°C  1550°C
 5% Gold/Platinum  Crucibles, bowls  1200°C  1300°C
 5% Gold/Platinum ZGS  Crucibles, bowls  1350°C  1500°C
 10% Rhodium/Platinum  Crucibles  1400°C  1550°C
 10% Rhodium/Platinum ZGS  Crucibles  1450°C  1650°C
 Iridium  Crucibles  2200°C  2300°C
 Silver  Crucibles  500°C  700°C
 

Crucibles

          Weight  
Capacity
ml
Inner diameter
mm
Height
mm
Bottom thickness
mm
Crucible
g
with strengthened rim
g

Cover
g

5 20 23 0.19 3.7 4.5 2
7 23 26 0.17 5.2 6 2.3
10 26 30 0.20 7.7 9 2.6
15 28 32 0.29 12 14 3.2
20 30 35 0.36 17 19 3.6
25 35 37 0.36 21 23 4.7
30 35 40 0.36 25 27 4.7
40 40 45 0.36 30 33 5.8
50 45 50 0.36 38 41 6.6
75 50 55 0.40 52 55 8.8
100 55 60 0.40 65 69 10.5
 

The designs with a strengthened rim prevent early deformation and crack formation. Particularly when crucible tongs are frequently used the life expectancy is significantly increased.

 

Bowls

          Weight  
Capacity
ml
Inner diameter
mm
Height
mm
Bottom thickness
mm
Bowls
g
with strengthened rim
g
Cover
g
20 40 20 0.16 8 10 5.8
35 50 25 0.18 14 16 8.8
50 60 30 0.18 22 26 12.1
90 70 35 0.2 32 36 15
150 80 40 0.22 48 53 19.9
200 90 45 0.24 65 71 24
250 100 50 0.27 90 96 27
325 110 55 0.3 125 132 37
400 120 60 0.31 150 157 37
500 130 65 0.31 175 183 50
 

All bowls are available with or without a spout.
The designs with a strengthened rim prevent early deformation and crack formation.

We also deliver crucibles that match the fusion devices of Eagon, Linn, Herzog, Katanax, Oxiflux, Leco and Perl-X.

We supply accessories such as tweezers, spatulas and crucible tongs. Crucible tongs with platinum shoes or platinum tips are available in lengths of 200, 250, 300, 400, 500 and 600 mm.

 
 


Chemicals

Chemicals

 


Powder

Powder

 


Sheets & foils

Sheets & foils

 


Wire & tubes

Wire & tubes

 


PVD

PVD

 


Indium & gallium

Indium & gallium

 


High-purity Metals

High-purity Metals

 


Rare Earths

Rare Earths

 


Recycling

Recycling