Finoric LLC

Copper Sulfate

Copper Sulfate Pentahydrate Anhydrous Supplier, Manufacturer's Representative

CAS number: 7758-98-7 (anhydrous), 7758-99-8 (pentahydrate)

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DESCRIPTION

Copper Sulphate Pentahydrate BP Grade Ph Eur
Formula: CuSO4-5H2O
Weight: 249.7
CAS number: 7758-99-8

DEFINITION
Content: 99.0 per cent to 101.0 per cent.

CHARACTERS
Appearance: Blue, crystalline powder or transparent, blue crystals.
Solubility: Freely soluble in water, soluble in methanol, practically insoluble in ethanol (96 per cent).

IDENTIFICATION
A. Add several drops of dilute ammonia to 1 ml of solution S (see Tests). A blue precipitate is formed. On further addition of dilute ammonia the precipitate dissolves and a dark blue colour is produced.
B. Loss on drying (see Tests).
C. Dilute 1 ml of solution S to 5 ml with water. The solution gives reaction of sulphates.

TESTS
Solution S: Dissolve 5 g in water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clear.
Chlorides: Maximum 100 ppm.
Iron: Maximum 1.00 × 102 ppm.
Atomic absorption spectrometry: To meet the requirement.
Lead: Maximum 50.0 ppm.
Loss on drying: 35.0 per cent to 36.5 per cent, determined on 0.500 g by drying in an oven at 250 ± 10 °C.

Cupric Sulfate Cupric Sulfate USP Grade
CuSO45H2O --- 249.69
Sulfuric acid, copper(2+) salt (1:1), pentahydrate.
Copper(2+) sulfate (1:1) pentahydrate [CAS number 7758-99-8].
Anhydrous 159.61 [CAS number 7758-98-7].
Cupric Sulfate, dried at 250 to constant weight, contains not less than 98.5 percent and not more than 100.5 percent of CuSO4.

Identification: A solution (1 in 10) responds to the tests for Copper and for Sulfate.
Loss on drying: Dry it at 250 to constant weight: it loses between 33.0% and 36.5% of its weight.
Limit of sodium: The limit is 0.02%.
Limit of potassium: The limit is 0.01%.
Limit of calcium: The limit is 0.005%.
Limit of iron: The limit is 0.003%.
Limit of nickel: The limit is 0.005%.

Copper Sulfate Cupric Sulfate FCC Food grade
CuSO4 Formula wt, anhydrous 159.6
CuSO4·5H2O Formula wt, pentahydrate 249.68
INS: 519 CAS: anhydrous CAS number 7758-98-7
CAS: pentahydrate CAS number 7758-99-8

DESCRIPTION
Copper Sulfate occurs as blue crystals, crystalline granules, or powder. It effloresces slowly in dry air and is freely soluble in water, soluble in glycerin, and slightly soluble in alcohol.
Function: Nutrient.

REQUIREMENTS
Identification: A 1:20 solution gives positive tests for Copper and for Sulfate.
Assay: Not less than 98.0% and not more than 102.0% of CuSO4·5H2O.
Iron: Not more than 0.01%.
Lead: Not more than 4 mg/kg.
Substances Not Precipitated by Hydrogen Sulfide: Not more than 0.3%.

Cupric Sulfate Pentahydrate Analytical Reagent Grade
Copper(II) Sulfate Pentahydrate
CuSO4 · 5H2O Formula Wt 249.68
CAS Number 7758–99–8

REQUIREMENTS
Assay: 98.0–102.0% as CuSO4 · 5H2O

MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.002%
Calcium (Ca): 0.005%
Iron (Fe): 0.003%
Nickel (Ni): 0.005%
Potassium (K): 0.01%
Sodium (Na): 0.02%

Specifications of Copper Sulphate Anhydrous Commercial Pure
Appearance: Blue Colored Powder & Crystals
Copper as Cu %: 38.2 Minimum
Nickel as Ni %: 0.05 Maximum
Iron as Fe %: 0.30 Maximum
Lead as Pb %: 0.003 Maximum
Cadmium as Cd %: 0.001 Maximum
Arsenic as As %: 0.0007 Maximum
Mercury as Hg %: 0.0007 Maximum
Insoluble matter %: 0.03 Maximum in water.

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