Properties table of common solvents

Properties of common solvents.

Solvent	Chemical formula	Boiling point	Dielectric constant	Density	Dipole moment
Non-polar solvents
Pentane	CH3-CH2-CH2-CH2-CH3	36 °C	1.84	0.626 g/ml	0.00 D
Cyclopentane	C5H10	40 °C	1.97	0.751 g/ml	0.00 D
Hexane	CH3-CH2-CH2-CH2-CH2-CH3	69 °C	1.88	0.655 g/ml	0.00 D
Cyclohexane	C6H12	81 °C	2.02	0.779 g/ml	0.00 D
Benzene	C6H6	80 °C	2.3	0.879 g/ml	0.00 D
Toluene	C6H5-CH3	111 °C	2.38	0.867 g/ml	0.36 D
1,4-Dioxane	/-CH2-CH2-O-CH2-CH2-O-\	101 °C	2.3	1.033 g/ml	0.45 D
Chloroform	CHCl3	61 °C	4.81	1.498 g/ml	1.04 D
Diethyl ether	CH3CH2-O-CH2-CH3	35 °C	4.3	0.713 g/ml	1.15 D
Polar aprotic solvents
Dichloromethane (DCM)	CH2Cl2	40 °C	9.1	1.3266 g/ml	1.60 D
Tetrahydrofuran (THF)	/-CH2-CH2-O-CH2-CH2-\	66 °C	7.5	0.886 g/ml	1.75 D
Ethyl acetate	CH3-C(=O)-O-CH2-CH3	77 °C	6.02	0.894 g/ml	1.78 D
Acetone	CH3-C(=O)-CH3	56 °C	21	0.786 g/ml	2.88 D
Dimethylformamide (DMF)	H-C(=O)N(CH3)2	153 °C	38	0.944 g/ml	3.82 D
Acetonitrile (MeCN)	CH3-C≡N	82 °C	37.5	0.786 g/ml	3.92 D
Dimethyl sulfoxide (DMSO)	CH3-S(=O)-CH3	189 °C	46.7	1.092 g/ml	3.96 D
Propylene carbonate	C4H6O3	240 °C	64.0	1.205 g/ml	4.9 D
Polar protic solvents
Formic acid	H-C(=O)OH	101 °C	58	1.21 g/ml	1.41 D
n-Butanol	CH3-CH2-CH2-CH2-OH	118 °C	18	0.810 g/ml	1.63 D
Isopropanol (IPA)	CH3-CH(-OH)-CH3	82 °C	18	0.785 g/ml	1.66 D
n-Propanol	CH3-CH2-CH2-OH	97 °C	20	0.803 g/ml	1.68 D
Ethanol	CH3-CH2-OH	79 °C	24.55	0.789 g/ml	1.69 D
Methanol	CH3-OH	65 °C	33	0.791 g/ml	1.70 D
Acetic acid	CH3-C(=O)OH	118 °C	6.2	1.049 g/ml	1.74 D
Water	H-O-H	100 °C	80	1.000 g/ml	1.85 D

GHS Symbols and Labelling

The globally harmonised system of classification and labelling of chemicals.

This GHS deals with the classification of chemicals by types of hazard and provides harmonized elements that communicate these hazards, including labels and safety data sheets.

New GHS pictograms are replacing the traditional orange symbols.  You may have already seen these on chemical pacakaging.

Please download the useful poster below for more information.

GHS Poster

Laboratory Equipment

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We sell items from autoclaves & balances through to glassware washing machines and water baths.  Whatever you need we can help.  We can also source products that are not within our catalogue or are 'non-standard'.

For more information on laboratory equipment please click on the link below or contact us in the usual way.

Laboratory Equipment

Presspak Newsletter - New Stuart Undergrad stirrer/hotplates

P&R Labpak's new Presspak Newsletter is out!

The market leading range of Stuart hotplate/stirrers has been redesigned.

The new Undergrad range is stylish and economical and offers a number of novel features.

Get 10% discount during May and June by quoting STUART10 and referring to our newsletter. Offer applies to the SCT1 additional temperature controller as well.

Don't miss out on these new models at these great prices!

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The new catalogue features a wealth of products catering for all budgets laid out in application based chapters, bringing all of your needs together in one place.

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Conversion Units of Pressure

English System (Water, Mercury at 68°F)

To convert	Multiply by	To obtain
in. water	0.0833	ft water
in. water	0.0736	in. mercury
in. water	82.98	oz/sq ft
in. water	0.03602	psi
in. water	5.1869	psi
ft. water	12	in. water
ft water	0.8832	in. mercury
ft water	995.8	in. mercury
ft water	0.4332	psi
ft water	62.24	psf
ft (any liq.)	0.4322 x sp gr	psi
in. mercury	13.57	in. water
in. mercury	1.131	ft water
in. mercury	1128	oz/sq ft
in. mercury	0.4894	psi
in. mercury	70.47	psf
in. mercury	0.03342	atm
atm	29.92	in. mercury
oz/sq ft	0.01205	in. water
oz/sq ft	0.001004	ft water
oz/sq ft	0.000887	in. mercury
oz/sq ft	0.000434	psi
oz/sq ft	0.0625	psf
psi	27.762	in. water
psi	2.314	ft water
psi	2.314/sq gr	ft (any liq.)
psi	2.043	in. mercury
psi	230.4	oz/sq ft
psi	144	psf
psi	0.06802	atm
psf	0.1928	in.water
psf	0.01607	ft.water
psf	0.01419	in.mercury
psf	16	oz/sq ft
psf	0.00694	psi
atm	14.7	psi

Metric System

To convert	Multiply by	To obtain
gr/sq cm	0.01422	psi
gr/cu cm	0.0361	lb/cu in.
kg/ sq cm	14.22	psi
kg/cu m	0.0624	lb/cu ft
kg/m	0.6720	lb/ft
meters waters	1.42	psi
meters (any liq.)	1.42 x sq gr	psi
mm mercury	0.001316	atm
lb/ft	1.4881	kg/m
psi	70.31	gr/sq cm
psi	0.07031	kg/sq cm
psi	0.7042	meters water
psi	0.7042/sp gr	meters (any liq.)
lb/cu in.	27.68	gr/cu cm
lb/cu ft	16.018	kg/cm m
atm	760	mm mercury