Total Lab Supplies - Everything for your laboratory

Total Lab Supplies - Everything for your laboratory
Our Head Office in St Helens

Friday, 25 May 2012

Properties of Metals


Metal
Specific Gravity
Specific Heat
Melting Point deg. C
Coefficient of Linear Expansion
Atomic Weight
Atomic Volume
Symbol
Aluminum
2.70
0.218
657
0.0000231
27.1
10.04
Al
Antimony
6.62
0.051
630
0.0000105
120.2
18.1
Sb
Arsenic
5.72
0.081
450
0.0000055
75.0
13.1
As
Barium
3.78
0.068
850
-
137.4
36.3
Ba
Bismuth
9.80
0.030
266
0.000014
208.0
21.2
Bi
Cadmium
8.64
0.056
322
0.000027
112.4
13.0
Cd
Caesium
1.87
0.048
26
-
132.8
71.0
Cs
Calcium
1.55
0.152
780
-
40.1
25.8
Ca
Cerium
6.68
0.045
623
-
140.2
21.0
Ce
Chromium
6.80
0.120
1550
-
52.0
7.6
Cr
Cobalt
8.50
0.103
1490
0.0000123
59.0
6.9
Co
Columbium
12.70
0.071
1950
-
93.5
7.4
Cb
Copper
8.93
0.093
1084
0.0000167
63.6
7.1
Cu
Gallium
5.90
0.079
80
-
69.9
11.8
Ga
Glucinum
1.93
0.506
-
-
9.1
4.7
Gl
Gold
19.32
0.031
1065
0.0000136
197.2
10.2
Au
Indium
7.42
0.057
155
0.0000417
114.8
15.5
In
Iridium
22.42
0.033
2300
0.0000065
193.1
8.6
Ir
Iron
7.86
0.116
1505
0.0000116
55.9
7.1
Fe
Lanthanum
6.1
0.045
810
-
139.0
22.8
La
Lead
11.35
0.031
327
0.000027
207.1
18.2
Pb
Lithium
0.54
0.941
186
-
7.0
13.0
Li
Magnesium
1.74
0.250
650
0.0000269
24.3
14.0
Mg
Manganese
8.00
0.120
1207
-
55.0
6.9
Mn
Mercury
13.60
0.032
39
0.0000610
200.0
14.7
Hg
Molybdenum
9.0
0.072
2500
-
96.0
10.7
Mo
Nickel
8.80
0.108
1451
0.0000127
58.7
6.7
Ni
Osmium
22.48
0.031
2500
0.0000065
190.9
8.5
Os
Palladium
11.50
0.059
1535
0.0000117
106.7
9.3
Pd
Platinum
21.4
0.032
1755
0.0000089
195.2
9.1
Pt
Potassium
0.86
0.170
62
0.0000841
39.1
45.5
K
Rhodium
12.10
0.058
1970
0.0000085
103.9
8.5
Rh
Rubidium
1.53
0.079
38
-
85.5
55.9
Rb
Ruthenium
12.26
0.061
1950
0.0000096
101.7
8.3
Ru
Silver
10.53
0.056
961
0.0000192
107.9
10.2
Ag
Sodium
0.97
0.290
97
0.0000710
23.0
23.7
Na
Strontium
2.54
-
800
-
87.6
34.5
Sr
Tantalum
16.6
0.033
2910
0.0000097
181.0
10.9
Ta
Tellurium
6.25
0.049
452
0.0000067
127.5
20.4
Te
Thallium
11.85
0.033
303
0.0000302
204.0
17.2
Tl
Thorium
11.00
0.028
1690
-
232.4
21.1
Th
Tin
7.29
0.055
232
0.0000203
119.0
16.3
Sn
Titanium
4.87
0.130
1800
-
48.1
9.9
Ti
Tungsten
19.10
0.034
3100
-
184.0
9.6
W
Uranium
18.70
0.028
-
-
238.5
12.7
U
Vanadium
5.50
0.115
1680
-
51.1
9.3
V
Yttrium
3.80
-
-
-
89.0
23.4
Yt
Zinc
7.15
0.094
419
0.0000274
65.4
9.1
Zn
Zirconium
6.40
0.066
1500
-
90.6
14.1
Zr
* Atomic volume = Atomic weight ÷Specific Gravity. By atomic volume is meant the volume in cubic centimeters which a combining weight in grammes of the element occupies. In textbooks and papers, the density is usually given instead of the specific volume, which is its reciprocal, i.e. to find the atomic volume, the atomic weight is divided by the density.

Friday, 18 May 2012

Properties table of common solvents

Properties of common solvents.
Solvent
Non-polar solvents
CH3-CH2-CH2-CH2-CH3
36 °C
1.84
0.626 g/ml
0.00 D
C5H10
40 °C
1.97
0.751 g/ml
0.00 D
CH3-CH2-CH2-CH2-CH2-CH3
69 °C
1.88
0.655 g/ml
0.00 D
C6H12
81 °C
2.02
0.779 g/ml
0.00 D
C6H6
80 °C
2.3
0.879 g/ml
0.00 D
C6H5-CH3
111 °C
2.38
0.867 g/ml
0.36 D
/-CH2-CH2-O-CH2-CH2-O-\
101 °C
2.3
1.033 g/ml
0.45 D
CHCl3
61 °C
4.81
1.498 g/ml
1.04 D
CH3CH2-O-CH2-CH3
35 °C
4.3
0.713 g/ml
1.15 D
Polar aprotic solvents
CH2Cl2
40 °C
9.1
1.3266 g/ml
1.60 D
/-CH2-CH2-O-CH2-CH2-\
66 °C
7.5
0.886 g/ml
1.75 D
CH3-C(=O)-O-CH2-CH3
77 °C
6.02
0.894 g/ml
1.78 D
CH3-C(=O)-CH3
56 °C
21
0.786 g/ml
2.88 D
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
CH3-S(=O)-CH3
189 °C
46.7
1.092 g/ml
3.96 D
C4H6O3
240 °C
64.0
1.205 g/ml
4.9 D
Polar protic solvents
H-C(=O)OH
101 °C
58
1.21 g/ml
1.41 D
CH3-CH2-CH2-CH2-OH
118 °C
18
0.810 g/ml
1.63 D
CH3-CH(-OH)-CH3
82 °C
18
0.785 g/ml
1.66 D
CH3-CH2-CH2-OH
97 °C
20
0.803 g/ml
1.68 D
CH3-CH2-OH
79 °C
24.55
0.789 g/ml
1.69 D
CH3-OH
65 °C
33
0.791 g/ml
1.70 D
CH3-C(=O)OH
118 °C
6.2
1.049 g/ml
1.74 D
H-O-H
100 °C
80
1.000 g/ml
1.85 D

Monday, 14 May 2012

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

Friday, 4 May 2012

Laboratory Equipment

P&R Labpak offer a full range of laboratory equipment from most of the major brands to suit all budgets.  We are able to offer technical help and advice to help you choose the correct item or to help you meet your budgetary requirements.

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

Monday, 30 April 2012

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!

Click to download the newsletter now!

Thursday, 19 April 2012

Our new 2012-2014 catalogue is now available!! Copies are being distributed to customers but if you haven't got yours yet or would like a copy please get in touch.

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.

Don't miss out!

All your laboratory consumables, laboratory equipment and more in one place.