Laboratory Products & Solutions

Heavy Mineral Acid Digestion Equipment

MARC designs and manufactures a range of heating equipment specifically designed for mineral acid digestions.  All our digesting surfaces are available in aluminium or PTFE-coated graphite and all equipment is designed to ensure acid ingress is minimized – thereby prolonging the equipment’s lifespan. 

 

  • Test Tube Digester Blocks for Heavy Acid Environments – Anodised Aluminium or Graphite 

marc-digestor-block-18-x-100

 We use 316SS for the body of the digester and the heater block itself is manufactured from aluminium and then anodised for additional chemical protection.  The heater block is also available in PTFE-coated graphite – which is recommended if metal contamination is a concern. The controller is detached from the main digester body so that it can be placed away from the fumes. 

 

 

 

The models in the table below are standard – however please feel free to request any variations.  Please note the digester blocks below are designed to heat aqueous samples at temperatures up to 185 deg C. For operator safety reasons – and to prolong element life – do not attempt to run the digester blocks at temperatures higher than 185 deg C.   At all times the draught-shield should be used to prevent user scalding and to prolong element life in a fume cupboard environment. 

 

 

 

Test Tube Config.

Temp Max.(deg C)

 

Body Stock Codes (240V /50 or 60Hz)
Anodised Aluminium 

Heater Block

Graphite Heater Block
         
16mm x 50 185 316SS 104446 189873
18mm x 50 185 316SS 104451 189875
20mm x 50 185 316SS 125434 189876
24mm x 50 185 316SS 125127 189863
         
16mm x 100 185 316SS 189871 189870
18mm x 100 185 316SS 125128 189869
20mm x 100 185 316SS 126183 189868
24mm x 100 185 316SS 189872 189862
         

 

  • Flat Digester Blocks for Heavy Acid Environments – Available with Aluminium or PTFE-Coated Graphite Heating Surfaces for Heavy Acid Beaker Or Volumetric Flask digestions. These blocks are specifically designed to minimize acid ingress and so are extremely durable.  These blocks are designed for the digestion of acidified aqueous samples up to 185 deg C. This equipment is designed for use in a fume cupboard with 15A power outlets. 

 

Size (mm) Voltage (V) Max Temp (°C) Current Rating Heater Block Material Stock Code
610 x 500 220-240

50 or 60 Hz

250 15A Anodized Aluminium 112776
PTFE- Coated Graphite 112846
610 x 300 15A Anodized Aluminium 112851
PTFE-Coated Graphite 112856

36 total views, 1 views today