Product details

Test tube brush w. wool tip,d20mm

Test tube brush w. wool tip,d20mm

Item no.: 38762-00

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  • Description
  • Related Experiments

Function and Applications

Test tube brush with wool tip.

Equipment and technical data

  • twisted brush
  • head of brush made of wool
  • diameter: 20 mm
  • handle: twisted eye
  • total length: 270 mm
Experiment Item no.
The cracking of petroleum P7171300
Student set General Chemistry, TESS advanced Chemistry 15300-88
Student set Organic chemistry, TESS advanced Chemistry 15304-88
Student set Inorganic chemistry, TESS advanced Chemistry 15301-88
Student set Chemistry of polymers, TESS advanced Chemistry 15305-88
Student set Food chemistry, TESS advanced Chemistry 15306-88
Properties of Matter,hardness, colour,magnetisability,water, solubility P7150100
Properties of material - combustibility, melting point P7150200
Properties of mixtures P7150600
Liquid mixtures P7150700
Mixture separation - evaporation P7150800
Mixture separations - filtration, magnatic separation P7150900
Comparison of a physical process and a chemical reaction P7151200
Reaction of copper and sulphur P7151300
Test of oxygen P7151400
Test for hydrogen P7151500
Test for nitrogen P7151600
Periodic system properties of a group of elements - Group 2 P7152200
Oxygen, cause of oxidation P7153200
Properties of oxygen P7153500
Reactions in pure oxygen P7153600
Quantitative analysis of oxides P7153700
Nitrogen, preparation and properties P7153800
Rusting- "slow combustion" P7154300
Reduction of copper oxide P7154400
Water content of natural substances P7154500
Solubility of salts in water - comparison with the solubili-ty of gases in water P7154900
Mode of operation of an aeration tank (sewage treatmentplant) P7155000
Test for water P7155300
Water, an oxide P7155400
Degradation of water by reducing agents P7155500
Synthesis of water P7155600
Production of gypsum plaster P7155700
Plaster moulds P7155900
General safety precautions to be taken when handling acids P7157000
Plant pigments as indicators P7157200
The effects of acids on indicators P7157300
The effects of acids and lyes on natural and commercial P7157400
The effects of acids on metals P7157500
Acid strength P7157600
Preparation and properties of hydrochloric acid P7157700
Preparation and properties of sulphurous acid P7157800
PVC- a potential hydrochloric acid former P7157900
Sulphurous acid- environmental hazards due to the combustionof fossil fuels, acid rain P7158000
Oxidation of sulphurous acid P7158100
Preparation and properties of sulphuric acid P7158200
Brönsted acids: acidity comparison of an aqueous and an ace-tonic solution of citric acid P7158500
Alkalis - constituents of hous ehold detergents P7158700
Aqueous solubility of ammonia P7158800
Preparation and properties of a lime water/magnesium hydro-xide solution P7158900
Preparation and properties of sodium hydroxide solution P7159000
Salt formation due to a reaction of acids with metal oxides P7159500
Salt formation from chemical elementsreaction of zinc and iron with sulphur and iodine P7159600
Salt formation by precipitation reaction - qualitative determination of chlorids and sulphates P7159700
Hydrolysis of salts P7159800
Thermal decomposition of salts P7159900
The decomposition of organic substances P7170000
The detection of carbon by oxidation P7170200
The detection of oxygen P7170300
The detection of nitrogen P7170400
The detection of sulphur P7170500
The characterisation of methane P7170700
The homologous series of the alkanes P7170800
The reactivity of the alkanes P7170900
The characterisation of ethylene P7171000
The characterisation of ethine (acetylene) P7171100
Removal of paraffins by extraction P7171400
Removal of paraffins by urea P7171500
Prodution of methanol "wood spirit" P7171700
Alco test-tubes P7171800
The idoform test P7172000
The properties of homologous series of alcohols P7172100
Polyhydric alcohols P7172200
Schiff's test and Fehling's test P7172400
The characterisation of acetone P7172500
The use of formic acid P7172600
The characterisation of acetic acid "wood vinegar" P7172700
The acidic character of carboxcyclic (alkane) acids P7172800
Iron cloride test / Formation of verdigris P7172900
Esters of acetic acid P7173000
Esters of various alkane acids P7173100
Production of soap P7173300
The properties of soap P7173400
Constituents of polymers (1): The thermal decomposition/oxidtion of polymers P7180000
Constituents of polymers (2): The detection of polymer constitents/the Beilstein test P7180100
The decomposition of naturally occuring polymers: The decompsition of starch P7180200
Properties of plastics (2): Determination of the densities ofplastic P7180500
Step-growth polymerisation (1): The formation of polyamide P7181200
Polyaddition (1): aldol addition P7181600
The coagulation of egg white changes its composition P7185100
The solubility of fats P7185300
Production of soap P7185500
The composition of fats P7185600
The water content of fatty products P7185700
Detection of fats with dyes P7185900
Fresh and spent deep-fry fat P7186100
Detection of methanol P7186200
Tanning matter in tea P7186300
Active agents in pepper P7186500
The term carbohydrate P7186600
The solubility of carbohydrates P7186700
The detection of glucose with Fehling's solution P7186800
Reducing properties of glucose P7186900
Fructose P7187000
Lactose P7187100
Detection of starch P7187200
Composition of starch P7187400
Wheat gluten P7187500
Pectins P7187600
Cleavage of starch during digestion P7187700
Detection of vitamin C P7187800
Carbon dioxide P7188100
Ammonia in liquorice P7188200
Phosphate in meat products P7188300
Detection of nitrite in meat products P7188400
Enzymatic browning P7188500
Emulsifying agents P7188700
Enzymatic cleavage of proteins P7188800
Catalases P7188900
Student set Titration and analytical chemistry, TESS advanced Chemistry 15303-88
TESS advanced set Analytical Chemistry with Cobra4 Mobile-Link, ACH 2 15303-77
Student set Acids, Bases, Salts, TESS advanced Chemistry 15302-88
Acids and their effect on indicators P7510100
The effect of acids and bases on natural and synthetic indicators P7510200
Identification of buffers with indicators P7510300
Saline solutions and their effect on various indicators P7510400
Anion analysis with precipitation reactions P7511300
Chemical process: synthesis and analysis P1131701

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