Molecular sieves 3A

3A (3 Å pore diameter): Adsorbs NH₃, H₂O, (but not C₂H₆), suited for drying of polar solvents. Available in different packing sizes.

Specifications:

Pore size 0,3 nm

Particle size 1,6 – 2,5 mm

Water absorptive capacity 22 %         

Bulk density 0,795 kg/m3

Crushing strength 33 N

Loss on ignition 0,7 %

Molecular sieves 4A

4A (4 Å pore diameter): Adsorbs H₂O, CO₂, SO₂, H₂S, C₂H₄, C₂H₆, C₃H₆, EtOH. Doesn't adsorbs C₃H₈ and higher hydrocarbons. Suited for drying of apolar solvents and gases.

Specifications:

Dynamic activity at 5 % relative moisture min. 16,0 %

Residue on roasting max. 3,0 %

Abrasibility max. 1,0 %           

Mechanical strength min. 94,0 %

Bulk density 640 - 750 kg/m3

Potassium hexacyanoferrate(II) trihydrate pure

Synonyms: Potassium ferrocyanide, Potassium hexacyanidoferrate(II), (Yellow) Prussiate of Potash, Tetrapotassium ferrocyanide trihydrate, K4[Fe(CN)6] · 3H2O.

Useful for example as a reagent for the determination of iron(III) ions, for the manufacture of Prussian blue pigment, as hardener for steels.

Silica gel orange 3-7 mm cobalt free

Silica gel with indicator. Colour changes from orange to green when desiccant is saturated. The silica gel can be regenerated by heating to temperatures between 105 and 250 °C in the oven.

Specifications:

Bulk density 650 - 800 kg/m3

Moisture max. 3,0 %

Granulation 3 - 7 mm

Dynamic activity

at 40% relative humidity min. 20,0 %       

Static activity

at 20% relative humidity 8,0 – 13,0 %

at 35% relative humidity 13,0 – 20,0 %

at 50% relative humidity 20,0 – 25,0 %

Magnesium sulfate anhydrous puriss. p.a. (MgSO4) - 1 kg

Magnesium sulfate anhydrous, analytical grade. Suited for every application. Synonyms: MgSO4

Calcium chloride technical (CaCl2) - 1 kg

Packed in plastic bag. Suited as drying agent. Synonyms: CaCl2, Calcium(II) chloride, Calcium dichloride.

Calcium chloride anhydrous puriss. p.a. (CaCl2) - 500 g

Well suited as drying agent in laboratory applications.

Potassium carbonate anhydrous pure (K2CO3) - 1 kg

Specifications:

Assay min. 98,0%

Water insoluble residues max. 0,02%

Nitrogen (N) max. 0,002%

Chlorides (Cl) max. 0,01%

Sulfates (SO4) max. 0,01%

Phosphates (H3PO4) max. 0,002%

Silicates (SiO2) max. 0,01%

(As) max. 0,00005%

(Al) max. 0,003%

Heavy metals (as Pb) max. 0,0005%

(Ca+Mg) max. 0,015%

(Fe) max. 0,002%

Carboxymethyl cellulose (CMC) sodium salt

Powdered, suitable as thickener, binder and for the preparation of gels.

Tannin water soluble

Useful as rust converter, tanning agent, ...

Specifications:

Appearance: brown powder

Tannic acid content: 95%

Drying loss: 6,4%

Ash content: 0,28%

Solubility:

in water, 20%: clear solution