Stann Groups Ltd

Johannesburg, South Africa

with a sole aim in delivering quality products, we are the prominent exporter, distributor, supplier and trading company of potassium carbonate in johannesburg, gauteng, south africa.

cas number: 584-08-7, molecular weight: 138.21, chemical formula: k2co3, einecs ec number: 209-529-3

potassium carbonate bp

definition

content: 99.0 per cent to 101.0 per cent (dried substance).

characters

appearance: white or almost white granular powder, hygroscopic.

solubility: freely soluble in water, practically insoluble in ethanol (96 per cent).

identification

a. Dissolve 1 g in 10 ml of water. The solution is strongly alkaline.

b. 2 ml of the solution prepared for identification test a gives the reaction of carbonates and bicarbonates.

c. 1 ml of the solution prepared for identification test a gives reaction of potassium.

tests

solution s: dissolve 10.0 g in 25 ml of distilled water. Slowly add 14 ml of hydrochloric acid. When the effervescence has ceased, boil for a few minutes. Allow to cool and dilute to 50 ml with distilled water.

appearance of solution: solution s is not more opalescent than reference suspension and not more intensely coloured than reference solution.

chlorides : maximum 100 ppm.

sulphates : maximum 100 ppm.

calcium: maximum 100 ppm.

iron: maximum 10 ppm.

heavy metals: maximum 20 ppm.

loss on drying: maximum 5.0 per cent, determined on 0.300 g by drying in an oven at 120-125c for 5 h.

with the help of our team of experts, our company known as a leading exporter, distributor, supplier and trading company of benzyl alcohol in johannesburg, gauteng, south africa.

benzyl alcohol bp

c7h8o . 108.1 . 100-51-6

definition

phenylmethanol

content - 98.0 per cent to 100.5 per cent.

characters

appearance- clear, colourless, oily liquid.

solubility- soluble in water, miscible with ethanol (96 per cent) and with fatty and essential oils.

relative density- 1.043 to 1.049.

benzyl alcohol usp nf

c7h8o 108.14

benzenemethanol.

benzyl alcohol usp [100-51-6].

benzyl alcohol contains not less than 98.0 percent and not more than 100.5 percent of c7h8o.

benzyl alcohol acs analytical reagent

benzenemethanol c6h5ch2oh

formula wt 108.14

cas number 100-51-6

requirements

assay:

99.0% c6h5ch2oh

maximum allowable

color (apha): 20

residue after ignition: 0.005%

acetophenone (c6h5coch3): 0.02%

benzaldehyde (c6h5cho): 0.01%

benzyl alcohol is also called phenylmethanol

by keeping track with the market developments, we are eminent exporter, distributor, supplier and trading company of zinc sulphate in johannesburg, gauteng, south africa.

cas number: 7446-20-0 &7733-02-0, molecular weight: 287.54, chemical formula: znso47h2o, einecs ec number: 231-793-3

zinc sulphate heptahydrate bp grade

znso4, 7h2o -- 287.5 -- 7446-20-0

definition

content: 99.0 per cent to 104.0 per cent zinc sulphate heptahydrate ( zinc sulfate heptahydrate ).

characters

appearance: white or almost white, crystalline powder or colourless, transparent crystals, efflorescent.

solubility: very soluble in water, practically insoluble in alcohol.

zinc sulphate hexahydrate bp grade

znso4-6h2oi -- 269.5 -- 13986-24-8

definition

content: 99.0 per cent to 104.0 per cent zinc sulphate hexahydrate ( zinc sulfate hexahydrate ).

characters

appearance: white or almost white, crystalline powder or colourless transparent crystals, efflorescent.

solubility: very soluble in water, practically insoluble in alcohol.

zinc sulphate monohydrate bp grade

znso4-h2o -- 179.5 -- 7446-19-7

definition

content: 99.0 per cent to 101.0 per cent.

characters

appearance: white or almost white, crystalline powder, or colourless, transparent crystals.

solubility: very soluble in water, practically insoluble in ethanol (96 per cent)

zinc sulfate usp grade

znso4-xh2o

sulfuric acid, zinc salt (1:1), hydrate.

zinc sulfate (1:1) monohydrate 179.46

supported by huge market experience, we are the famous exporter, distributor, supplier and trading company of magnesium sulfate in xjohannesburg, gauteng, south africa.

dried magnesium sulphate bp

preparation

magnesium sulphate paste

definition

dried magnesium sulphate contains not less than 62.0% and not more than 70.0% of mgso4.

it may be prepared by drying magnesium sulphate at 100 until it has lost approximately 25% of its weight.

magnesium sulphate heptahydrate bp

epsom salts

mgso4, 7h2o 246.5 10034-99-8

action and use

osmotic laxative; used in treatment of electrolyte deficiency.

definition

content

99.0 per cent to 100.5 per cent (dried substance)

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magnesium sulfate usp

mgso4xh2o

sulfuric acid magnesium salt (1:1), hydrate.

magnesium sulfate (1:1) monohydrate 138.36

magnesium sulfate (1:1) heptahydrate 246.48 [10034-99-8].

anhydrous 120.37 [7487-88-9].

magnesium sulfate, rendered anhydrous by ignition, contains not less than 99.0 percent and not more than 100.5 percent of mgso4

magnesium sulfate fcc magnesium sulphate

epsom salt

mgso4xh2o formula wt, monohydrate 138.38

formula wt, heptahydrate 246.47

ins: 518

cas: magnesium sulfate monohydrate [14168-73-1]

cas: magnesium sulfate heptahydrate [10034-99-8]

cas: magnesium sulfate dried [15244-36-7]

description

magnesium sulfate occurs as a colorless crystal or a granular crystalline powder.