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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 80 of 206 products
Size
100ml (54)
1LT (51)
2½LT (48)
500ml (53)
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)
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)
Reference RM-D4236P
Description ETER DI-ISOPROPILICO Hi-Dry (A NHIDRO) 500 ml
Price 86,02€
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Reference RM-D4236S
Description ETER DI-ISOPROPILICO Hi-Dry (A NHIDRO) 100 ml
Price 55,10€
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Reference RM-D4248L
Description DIMETILACETAMIDA Hi-Dry (ANHID RA) 2,5 L
Price 325,80€
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Reference RM-D4248M
Description DIMETILACETAMIDA Hi-Dry (ANHID RA) 1 L
Price 176,84€
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Reference RM-D4248P
Description DIMETILACETAMIDA Hi-Dry (ANHID RA) 500 ml
Price 123,92€
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Reference RM-D4248S
Description DIMETILACETAMIDA Hi-Dry (ANHID RA) 100 ml not dangerous goods
Price 61,20€
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Reference RM-D4281L
Description DIMETILSULFOXIDO Hi-Dry (ANHID RO) 2,5 L
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Reference RM-D4281M
Description DIMETILSULFOXIDO Hi-Dry (ANHID RO) 1 L
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Reference RM-D4281P
Description DIMETILSULFOXIDO Hi-Dry (ANHID RO) 500 ml
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Reference RM-D4281S
Description DIMETILSULFOXIDO Hi-Dry (ANHID RO) 100 ml
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Reference RM-D4297L
Description 1,4-DIOXANO Hi-Dry (ANHIDRO) 2,5 L
Price 235,64€
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Reference RM-D4297M
Description 1,4-DIOXANO Hi-Dry (ANHIDRO) 1 L
Price 124,13€
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Reference RM-D4297P
Description 1,4-DIOXANO Hi-Dry (ANHIDRO) 500 ml
Price 93,43€
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Reference RM-D4297S
Description 1,4-DIOXANO Hi-Dry (ANHIDRO) 100 ml
Price 72,96€
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Reference RM-D4302P
Description 1,2-EPOXIPROPANO Hi-Dry (ANHID RO) 500 ml
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Reference RM-D4302S
Description 1,2-EPOXIPROPANO Hi-Dry (ANHID RO) 100 ml
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Reference RM-D4313L
Description ETANOL ABSOLUTO Hi-Dry (ANHIDR O) 2,5 L (+ tasa alcoholes)
Price 176,84€
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Reference RM-D4313M
Description ETANOL ABSOLUTO Hi-Dry (ANHIDR O) 1 L
Price 93,21€
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Reference RM-D4313P
Description ETANOL ABSOLUTO Hi-Dry (ANHIDR O) 500 ml
Price 70,56€
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Reference RM-D4313S
Description ETANOL ABSOLUTO Hi-Dry (ANHIDR O) 100 ml
Price 55,10€
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showing 80 of 206 products