Is Nickel(II) Chloride Dihydrate interchangeable with the hexahydrate?

No. CAS 17638-48-1 identifies NiCl2·2H2O, while Nickel(II) Chloride hexahydrate is commonly identified by CAS 7791-20-0. Confirm hydrate state, formula weight and assay basis because using a different hydrate changes nickel content and process charge calculations.

Which controls should be agreed for Nickel(II) Chloride Dihydrate?

Agree nickel and chloride assay basis, water or hydrate state, insoluble matter, acidity or pH, iron, cobalt, copper, zinc and other process-relevant metals, plus particle form. State quantity, packaging, destination and regulatory documentation, and review worker and environmental controls under the current SDS.

Nickel(II) Chloride Dihydrate CAS 17638-48-1

Nickel(II) Chloride Dihydrate , CAS 17638-48-1 , has formula NiCl2·2H2O and molecular weight 165.63 g/mol. It is not interchangeable with anhydrous nickel chloride or the hexahydrate. Buyers should specify hydrate state, nickel and chloride assay basis, water, insoluble matter, iron, cobalt, copper, zinc and other trace-metal limits, together with particle form and the required regulatory documentation.

CAS: 17638-48-1
Synonyms: Nickel(II) chloride dihydrate, Nickel chloride dihydrate, Dichloronickel dihydrate
Molecular Formula: NiCl₂·2H₂O
Grade: Confirm hydration state or concentration, assay basis, key ions, insolubles or trace metals, physical form and intended-use documents against the current COA or TDS.
Package: State required form, quantity and destination; confirm the current bag or container, liner, net weight, moisture or corrosion controls, palletization and transport requirements before quotation.

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Product Description

1 Identity and specification

2 Quality controls for purchasing

3 Applications and grade selection

4 Storage and handling

5 Documentation and quotation details

Identity and specification

Item	Verified purchasing information
Product	Nickel(II) Chloride Dihydrate
CAS	17638-48-1
Formula / molecular weight	NiCl2·2H2O / 165.63 g/mol
Critical selection point	Dihydrate, not anhydrous or hexahydrate material

Nickel(II) Chloride Dihydrate is a defined hydrate of nickel chloride. CAS 17638-48-1 and formula NiCl2·2H2O identify the dihydrate. The hydrate form must be explicit because formula weight, metal content, dissolution behavior and storage response differ from anhydrous and hexahydrate grades.

Quality controls for purchasing

Specify nickel and chloride assay on an agreed basis, plus water or loss-on-drying controls.
Set limits for insoluble matter, acidity or pH and trace metals such as iron, cobalt, copper and zinc.
Confirm particle form, dissolution requirement and lot consistency for plating, catalyst or synthesis processes.

Applications and grade selection

Nickel(II) Chloride Dihydrate may be evaluated as a nickel source in electrochemical, catalyst, synthesis and other controlled industrial processes. Suitability depends on hydrate state, trace-metal profile and regulatory status. Process trials and waste-management review should precede bulk approval.

For a related nickel salt raw material, see Basic Nickel Carbonate.

Storage and handling

Keep tightly sealed and protected from moisture in corrosion-compatible packaging. Avoid incompatible materials and uncontrolled dust. Nickel compounds require occupational exposure controls, appropriate personal protection and waste handling according to the current SDS and local rules.

Documentation and quotation details

State dihydrate identity, assay basis, trace-metal limits, particle form, annual volume, package, destination and end-use requirements. Request a lot COA, current SDS and any regulatory, transport or origin documents needed by the receiving site.

FAQ - Technical & Supply Chain

Q:
Is Nickel(II) Chloride Dihydrate interchangeable with the hexahydrate?

A: No. CAS 17638-48-1 identifies NiCl2·2H2O, while Nickel(II) Chloride hexahydrate is commonly identified by CAS 7791-20-0. Confirm hydrate state, formula weight and assay basis because using a different hydrate changes nickel content and process charge calculations.
Q:
Which controls should be agreed for Nickel(II) Chloride Dihydrate?

A: Agree nickel and chloride assay basis, water or hydrate state, insoluble matter, acidity or pH, iron, cobalt, copper, zinc and other process-relevant metals, plus particle form. State quantity, packaging, destination and regulatory documentation, and review worker and environmental controls under the current SDS.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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