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Irregular C18 Flash Column

Irregular C18 Flash Columns from Hawach produced with medical grade PP cartridge and no extractable PE frits and packed with ultra-pure, high-quality bonded silica.




Description of Irregular C18 Flash Column

Hawach irregular C18 flash column, the extremely low metal content reduces the interaction between the metal ions and the sample, ensuring excellent chromatographic performance and avoiding sample peak tailing due to high metal content.

Hawach Scientific masters a complete set of core technologies for high-performance chromatography separation materials, which is one of the few manufacturers in the world that can produce silica matrix Sorbents on a large scale.

  1. Surface modification and modification treatment of small particle porous materials;
  2. Bonding technology of various types of stationary phases on silica gel and polymer surfaces;
  3. Development and production of ultra-high purity fully porous silica gel;
  4. Application development of chromatography material products in analysis and preparation.

Features of Irregular C18 Flash Column

  • The C18 flash columns’ grain fitness distribution is narrow, indicating that the particle content is above 90%, thus ensuring high column efficiency and retention time stability, and improving the segregation and clarification efficiency of the sample;
  • High specific surface area, high separation performance, and can withstand higher load capacity.


The morphology of silica matrix can usually be divided into two types: amorphous and spherical. The irregular C18 column is the first choice for initial purification due to its cost-effectiveness.

The spherical C18 column has good particle uniformity, higher column efficiency, and better separation, but the relative price may be slightly higher, which can be used as the choice for fine purification.

Irregular C18 Columns

Ordering Information

40–63µm, 60Å
Column Specification Surface Area: 500m²/g
Average Pore Size: 60Å
Average Particle Size: 40-63μm
The Content of carbon: 17%

Item No. DescriptionFlow Rate  (mL/min)Sample SizeMax. Pressure (psi/bar)Package(pcs/pk)
SLC18IR40004PF40-63μm, 60Å, 5.9g10-205.9mg-118mg300/212
SLC18IR40012PF40-63μm, 60Å, 23g15-3023mg-0.46g300/211
SLC18IR40025PF40-63μm, 60Å, 38g15-3038mg-0.76g300/211
SLC18IR40040PF40-63μm, 60Å, 55g20-4055mg-1.1g300/211
SLC18IR40080PF40-63μm, 60Å, 122g30-60122mg-2.5g300/211
SLC18IR40120PF40-63μm, 60Å, 180g40-80180mg-3.6g300/211
SLC18IR40220PF40-63μm, 60Å, 340g50-100340mg-6.8g250/171
SLC18IR40330PF40-63μm, 60Å, 475g50-100475mg-9.5g250/171

20–45 µm, 100Å
The Surface Area of Column Specification: 320m2/g
Pore Size Of Mean: 100Å
Medium Grain Size: 20-45μm
The Content of carbon: 17%

Item   No. DescriptionFlow Rate  (mL/min)Sample SizeMax. Pressure (psi/bar)Package(pcs/pk)
SLC18IR20004PF20-45μm, 100Å, 5.4g5-155.4mg-104mg300/212
SLC18IR20012PF20-45μm, 100Å, 20g10-2520mg-0.4g300/211
SLC18IR20025PF20-45μm, 100Å, 33g10-2533mg-0.66g300/211
SLC18IR20040PF20-45μm, 100Å, 48g15-3048mg-0.96g300/211
SLC18IR20080PF20-45μm, 100Å, 105g20-50105mg-2.1g300/211
SLC18IR20120PF20-45μm, 100Å, 155g30-60155mg-3.1g300/211
SLC18IR20220PF20-45μm, 100Å, 290g40-80295mg-5.9g250/171
SLC18IR20330PF20-45μm, 100Å, 420g40-80420mg-8.4g250/171

Depuflash Series Irregular C18 Columns

Ordering Information

Item   No. DescriptionPackage(pcs/pk)
SLC18IR20004DFIrregular C18, 40-63μm, 4g20
SLC18IR20012DFIrregular C18, 40-63μm, 12g18
SLC18IR20025DFIrregular C18, 40-63μm, 25g12
SLC18IR20040DFIrregular C18, 40-63μm, 40g10
SLC18IR20080DFIrregular C18, 40-63μm, 80g10
SLC18IR20120DFIrregular C18, 40-63μm, 120g10
SLC18IR20220DFIrregular C18, 40-63μm, 220g6
SLC18IR20330DFIrregular C18, 40-63μm, 330g4
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