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ROMIL Hi-Dry®

Looking for the Driest Solvents ?

Laboratory techniques make regular use of anhydrous solvents, especially in analysis and synthesis. But to purify and dispense them brings many difficulties.

To address this need we have taken further the high purity concept of our famous ROMIL‑SpS Super Purity Solvents. A range of specially dried solvents with such low water levels that surpass even the so-called anhydrous offerings from rivals. In general ROMIL Hi‑Dry® anhydrous solvents are specially produced to a water specification of less than 50 ppm (<0.0050%). However, many solvents go well beyond that and are routinely produced to lower than 5 ppm (<0.0005%). The water content itself is strictly controlled by coulometric Karl Fischer analysis

Solvents this dry need a packaging system designed to ensure that the exceptional state of dryness achieved at time of purification is retained throughout storage and use. Before filling, we first oven-dry the amber glass bottles to remove all traces of water which may be present on the inner walls. At such low levels even this trace moisture is noticeable. The bottles are then filled under an inert atmosphere of dry nitrogen to prevent moisture build-up and sealed with a special cap.

Specially designed both to retain solvent dryness and purity and to facilitate dispensing, the Hi‑Dry® cap features a double seal; a PTFE wad and a self-sealing septum. The PTFE wad sits between the solvent and the septum thereby maintaining the original chemical purity and giving an extended shelf life before initial use.

The self-sealing septum allows the solvent to be dispensed by syringe at the point of use. Alternatively, because the cap itself is screw-on it may also be opened conventionally. However, it is important to note that once in contact with the atmosphere product quality can deteriorate depending on the hygroscopic nature of the solvent.

To overcome this we recommend that dispensing operations are conducted under dry nitrogen either in a dry cabinet or with a positive pressure of the gas within the bottle. For safety reasons this should not exceed 0.3 bar (0.31 kg/sq cm) and should only be undertaken by personnel trained in such techniques and wearing appropriate safety equipment.

Choose the pack most suitable for your application out of a wide range of sizes from 100ml to 2½LT. Bulk packaging is available in the form of ROMIL LiQuiSure stainless steel flasks.

Specifications
ROMIL Hi-Dry®
N-Methyl-2-pyrrolidone Hi‑Dry over molecular sieve
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showing 20 of 210 products
Solvent
1,2,4-Trichlorobenzene (4)
1,2-Dichlorobenzene (4)
1,2-Dichloroethane (4)
1,2-Epoxypropane (2)
1,4-Dioxan (4)
1-Chlorobutane (4)
2,2,4-Trimethylpentane (4)
2-Methylpropan-1-ol (4)
Acetone (4)
Acetonitrile (4)
Benzene (4)
Butan-1-ol (4)
Carbon Disulphide (2)
Chloroform (4)
Cyclohexane (4)
Cyclohexanone (4)
Dichloromethane (4)
Diethyl Ether (8)
Di-iso-propyl Ether (4)
Dimethyl Sulphoxide (4)
Dimethylacetamide (4)
Dimethylformamide (2)
Ethanol absolute (4)
Ethyl Acetate (4)
Hexane fraction (4)
iso-Hexane 95% (4)
Methanol (4)
Methyl Ethyl Ketone (4)
Methyl iso-Butyl Ketone (4)
Methyl tert-Butyl Ether (4)
Methylcyclohexane (2)
n-Butyl Acetate (4)
n-Heptane 95% (4)
n-Heptane 99% (4)
n-Hexane 95% (4)
n-Nonane 95% (4)
n-Octane 95% (4)
n-Pentane 95% (4)
Petroleum Ether 100-120°C (4)
Petroleum Ether 140-165°C (4)
Petroleum Ether 30-40°C (4)
Petroleum Ether 40-60°C (4)
Petroleum Ether 60-80°C (4)
Petroleum Ether 80-100°C (4)
Propan-1,2-diol (4)
Propan-1-ol (4)
Propan-2-ol (4)
Propylene Carbonate (3)
Tetrachloroethylene (4)
Tetrahydrofuran (8)
Toluene (4)
Triethylamine (3)
Xylene mixed isomers (4)
Size
100ml (55)
1LT (52)
2½LT (49)
500ml (54)
Reference RM-D4032L
Description ACETONA Hi-Dry (ANHIDRA) 2,5 L
Price 101,60€
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Reference RM-D4032M
Description ACETONA Hi-Dry (ANHIDRA) 1 L
Price 57,00€
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Reference RM-D4032P
Description ACETONA Hi-Dry (ANHIDRA) 500 ml
Price 46,88€
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Reference RM-D4032S
Description ACETONA Hi-Dry (ANHIDRA) 100 ml
Price 39,65€
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Reference RM-D4049L
Description ACETONITRILO Hi-Dry (ANHIDRO) 2,5 L
Price 107,58€
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Reference RM-D4049M
Description ACETONITRILO Hi-Dry (ANHIDRO) 1 L
Price 56,79€
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Reference RM-D4049P
Description ACETONITRILO Hi-Dry (ANHIDRO) 500 ml
Price 44,39€
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Reference RM-D4049S
Description ACETONITRILO Hi-Dry (ANHIDRO) 100 ml
Price 36,14€
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Reference RM-D4066L
Description BENCENO Hi-Dry (ANHIDRO) 2,5 L
Price 176,77€
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Reference RM-D4066M
Description BENCENO Hi-Dry (ANHIDRO) 1 L
Price 95,20€
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Reference RM-D4066P
Description BENCENO Hi-Dry (ANHIDRO) 500 ml
Price 64,64€
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Reference RM-D4066S
Description BENCENO Hi-Dry (ANHIDRO) 100 ml
Price 41,51€
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Reference RM-D4082L
Description BUTAN-1-OL Hi-Dry (ANHIDRO) 2,5 L
Price 128,85€
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Reference RM-D4082M
Description BUTAN-1-OL Hi-Dry (ANHIDRO) 1 L
Price 67,94€
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Reference RM-D4082P
Description BUTAN-1-OL Hi-Dry (ANHIDRO) 500 ml
Price 49,56€
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Reference RM-D4082S
Description BUTAN-1-OL Hi-Dry (ANHIDRO) 100 ml
Price 36,14€
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Reference RM-D4087L
Description ACETATO DE n-BUTILO Hi-Dry (AN HIDRO) 2,5 L
Price 124,94€
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Reference RM-D4087M
Description ACETATO DE n-BUTILO Hi-Dry (AN HIDRO) 1 L
Price 65,87€
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Reference RM-D4087P
Description ACETATO DE n-BUTILO Hi-Dry (AN HIDRO) 500 ml
Price 48,73€
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Reference RM-D4087S
Description ACETATO DE n-BUTILO Hi-Dry (AN HIDRO) 100 ml
Price 36,14€
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showing 20 of 210 products