General Specifications of Magnesium Peroxide

Composition: MgO2
Magnesium Peroxide 35% to 40%
Calcium: 0.85%
Chloride Cl: 0.030%
Sulphate SO4: 0.3%
Heavy metals (As Pb): 0.003%
pH: 10
Moisture: 2%
Appearance: Light yellow to white fine powder.

Magnesium Peroxide BP Grad

DEFINITION
Mixture of magnesium peroxide and magnesium oxide.
Content: 22.0 per cent to 28.0 per cent of MgO2.

CHARACTERS
Appearance: White or slightly yellow, amorphous, light powder.
Solubility: Practically insoluble in water and in ethanol (96 per cent). It dissolves in dilute  mineral acids.

IDENTIFICATION
A. Dissolve about 15 mg in 2 mL of dilute nitric acid and neutralise with dilute  sodium hydroxide solution. The solution gives the reaction of magnesium.
B. Dissolve 0.1 g in 2 mL of dilute sulfuric acid and dilute to 10 mL with water.  Shake 1 mL of this solution with 5 mL of ether and 0.5 mL of potassium  dichromate solution. The ether layer is blue.

TESTS
Solution S1: Dissolve cautiously 5.0 g in 40 mL of hydrochloric acid. Cautiously evaporate the  solution to 10 mL and dilute to 100 mL with a mixture of equal volumes of acetic acid  and distilled water. Filter, if necessary, through a previously ignited and tared  porcelain or silica filter crucible of suitable porosity to give a clear filtrate. Keep the  residue for the test for acid insoluble substances.
Solution S2: Dilute 5 mL of solution S1 to 25 mL with distilled water R.
Appearance of solution: Solution S1 is not more intensely coloured than reference solution.
Acidity or alkalinity: To 2.0 g add 100 mL of carbon dioxide-free water and heat to boiling for 5 min.  Filter whilst hot through a sintered-glass filter, allow to cool and dilute to  100 mL with carbon dioxide-free water. To 15 mL of the filtrate, add 0.1 mL of  phph solution. The solution is red. Not more than 0.2 mL of 0.1 M  hydrochloric acid  is necessary to change the colour of the indicator. Keep the filtrate  for the test for soluble substances.
Acid insoluble substances: Maximum 0.1 per cent.
Soluble substances: Maximum 1.5 per cent.
Chlorides: Maximum 0.1 per cent.
Sulfates: Maximum 0.5 per cent.
Arsenic: Maximum 4 ppm, determined on 5 mL of solution S1.
Calcium: Maximum 1.0 per cent.
Iron: Maximum 500 ppm.
Heavy metals: Maximum 30 ppm.

ASSAY
Dissolve 80.0 mg, shaking cautiously, in a mixture, previously cooled to 20C, of 10  mL of sulfuric acid and 90 mL of water. Titrate with 0.02 M potassium  permanganate until a pink colour is obtained.
1 mL of 0.02 M potassium permanganate is equivalent to 2.815 mg of MgO2.

Sodium peroxide is the inorganic compound with the formula Na2O2. This yellowish solid is the product of sodium ignited in excess oxygen. It is a strong base. It exists in several hydrates and peroxyhydrates. SODIUM PEROXIDE reacts violently with reducing agents, combustible materials and light metals. Reacts exothermically and rapidly or even explosively with water to form a strong base (NaOH) and oxygen (O2).

We offer sodium peroxide commercial pure quality of 95% assay and Reagent grade too.

Sodium Peroxide Analytical Reagent
Na2O2, Formula Wt 77.98
CAS Number 1313-60-6

NOTE. When dissolving sodium peroxide, the material should be added slowly and in small portions to well-cooled water; when neutralizing, the acid must be added cautiously in small portions, and the solution kept cool.

REQUIREMENTS
Assay: 93.0% Na2O2

Zinc peroxide (ZnO2) appears as a bright yellow powder at room temperature. It was historically used as a surgical antiseptic. More recently zinc peroxide has also been used as an oxidant in explosives and pyrotechnic mixtures.

Specifications of Zinc Peroxide
Synonym: Zinc Superoxide
CAS No.: 1314-22-3
Molecular Formula: ZnO2
Molecular Weight: 97.4
Description: An off-white to yellowish white color powder.
Solubility: Practically insoluble in water and organic solvents. Soluble in mineral acids.
Chloride: Max. 50ppm
Sulfate: Max. 50ppm
Active Oxygen: Min. 9.0%
Purity: 60 % minimum for regular grade. 80% minimum for premium grade.