Metallic Salts & Oxides

Metallic Salts & Metallic Oxides are used for various industrial applications. The metallic salts and metallic oxides find diverse applications in photo diodes, photo transistors, photo voltaic cells, transparent electrodes, liquid crystal displays, IR detectors, and anti reflection coatings.

Applications

Nickel oxide has a range of applications such as:

For making electrical ceramics such as thermistors and varistors e.g. ferrites (nickel zinc ferrite)
Pigments for ceramic, glasses and glazes
Nickel oxide can be reacted with acids to form salts and other compounds e.g. nickel sulfamate for electroplating and nickel molybdate for hydrodesulfurisation catalysts.
Gold doped nickel oxide films can be used as transparent electrodes in optoelectronic devices.

Nickel (II) Oxide

Available in packaging : 25 kg BAG
CAS Number : 1313-99-1

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Properties		Specification
Molecular formula	NiO	Ni	>= 72% / 74%
Molar mass	74.6928	Co	<= 0.03%
Appearance	green crystalline solid	Cu	<= 0.06%
Density	6.67 g/cm³	Fe	<= 0.158%
Melting point	1955 °C, 2228 K, 3551 °F	Mn	<= 0.035%
Solubility in water	negligible	Zn	<= 0.02%
Solubility	soluble in ammonium hydroxide, KCN	Ca	<= 0.15%
Refractive index (nD)	2.1818	Mg	<= 0.15%
		Na	<= 0.15%
		Pb	<= 0.005%
		Insouble matter	<= 0.3%
		250 mesh	<= 1%

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Applications

NiCl₂ and its hydrate are occasionally useful in organic synthesis.

In combination with CrCl₂ for the coupling of an aldehyde and a vinylic Iodide to give allylic alcohols.
For selective reductions in the presence of LiAlH₄, e.g. for the conversion of alkenes to alkanes
As a precursor to nickel boride, prepared in situ from NiCl₂ and NaBH₄. This reagent behaves like Raney Nickel, comprising an efficient system for hydrogenation of unsaturated carbonyl compounds.

Nickel(II) chloride

Available in packaging : 50 kg HDPE BAG
CAS Number : 7718-54-9,7791-20-0 (hexahydrate)

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Properties		Specification
Molecular formula	NiCl₂	Nickel Metal % by mass	24.7
Molar mass	129.5994 (anhydrous) 237.69 (hexahydrate)	Moisture %	0.5
Appearance	yellow-brown crystalsdeliquescent (anhydrous) green crystals (hexahydrate)	Heavy Metals % by mass	0.05 Max.
Odor	odorless	Nitrates % by mass	0.001 Max.
Density	3.55 g/cm³ (anhydrous) 1.92 g/cm³ (hexahydrate)	pH of 10% Solution	4 - 6
Melting point	1001 °C (anhydrous) 140 °C (hexahydrate)	Insoluble matter % by mass	0.05 Max.
Solubility in water	anhydrous 64.2 g/100 ml (20 °C) 87.6 g/100 ml (100 °C) hexahydrate 254 g/100 ml (20 °C) 600 g/100 ml (100 °C)	Chlorides % by mass	0.01 Max.

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Applications

It is a source of tetrafluoroborate union. It is used in organic chemistry for fluorination reactions and as a catalyst, and for lab-scale preparation of boron trifluoride.
Sodium tetrafluoroborate is used in some fluxes used for brazing.
Sodium tetrafluoroborate can be used to prepare nitrosonium tetrafluoroborate, an explosive, by reacting with nitrogen(III) oxide.
It can also be used for synthesis of ionic liquids, where the tetrafluoroborate often plays the role of the product's anion.

Nickel (II) sulphate

Available in packaging : 50 kg HDPE BAG
CAS Number : 7786-81-4 (anhydrous), 10101-97-0 (hexahydrate), 10101-98-1 (heptahydrate)

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Properties		Specification
Molecular formula	NiSO₄	% of Nickel Sulphate	98% Min
Molar mass	154.75 (anhydrous) 262.85 (hexahydrate) 280.86(heptahydrate)	PH of aqucous solution not less than	4
Appearance	yellow solid (anhydrous) green-blue crystals (hexahydrate) blue crystals (heptahydrate)	Nickel (asNi) % by mass	22.0 Min.
Odor	odorless	Copper (asCu) % by mass	0.002 Max
Density	4.01 g/cm³ (anhydrous) 2.07 g/cm³ (hexahydrate) 1.948 g/cm³ (heptahydrate)	Iron (as Fe) % by mass : 0.005 Max.	0.005 Max.
Melting point	> 100 °C (anhydrous) 53 °C (hexahydrate)	Nitrates (as NO₃)% by mass	0.001 Max
Boiling point	840 °C (anhydrous, decomp) 100 °C (hexahydrate, decomp)	Insoluble matter % by mass	0.05 Max.
Solubility in water	65 g/100 ml (20 °C) 77.5 g/100 ml (30 °C) (heptahydrate)	Cobalt (as Co) % by mass	0.5 Max.
Solubility	insoluble in ethanol, ether, acetone	Heavy metals (as Pb) % by mass	0.002 Max
Acidity (pK_a)	4.5 (hexahydrate)	Zinc (as Zn) % by mass	0.005 Max.

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