What is Barium Hydroxide Octahydrate CAS 12230-71-6?

Barium Hydroxide Octahydrate is the hydrated inorganic base Ba(OH)2·8H2O, with molecular weight about 315.46 and EINECS 241-234-5. It is normally a white crystalline powder or crystals with density around 2.18 g/cm3 and water solubility around 56 g/L at 15 deg C.

Is Barium Hydroxide Octahydrate the same as the monohydrate or anhydrous form?

No. CAS 12230-71-6 specifically identifies the octahydrate, Ba(OH)2·8H2O. The monohydrate and anhydrous forms contain less water, have different formula weights and are not equivalent on a mass basis, so the hydrate form should be stated when comparing assay, pricing or feed quantities.

Which specifications are most important for Barium Hydroxide Octahydrate?

Assay and barium carbonate content are key because carbon dioxide exposure can convert barium hydroxide to barium carbonate. Typical grades control assay around 98%-102% and barium carbonate at not more than 1%-2%; chloride, sulfate, substances insoluble in dilute hydrochloric acid and iron are also commonly specified.

What is Barium Hydroxide Octahydrate used for?

It is used as a strong alkaline barium source in analytical chemistry, organic synthesis and barium salt manufacture. Industrial applications also include barium-based grease and lubricant additives, rubber vulcanization and water softening or scale treatment.

How should Barium Hydroxide Octahydrate be stored, and what should a sourcing inquiry include?

Store it in tightly closed packaging that limits moisture and carbon dioxide ingress, in a cool, dry and ventilated area away from acids. A sourcing inquiry should state CAS 12230-71-6, required assay and barium carbonate limit, intended use, quantity, packaging and destination.

Barium Hydroxide Octahydrate CAS 12230-71-6

Barium Hydroxide Octahydrate is a crystalline inorganic hydrate base. It may be evaluated for chemical synthesis, barium salt preparation, grease thickener systems, and laboratory or industrial process evaluation. For an RFQ, state the intended use, required specification, quantity, packaging, destination, and document needs.

CAS: 12230-71-6
Synonyms: Barium Hydroxide Octahydrate; Barium Dihydroxide Octahydrate; Caustic Baryta Octahydrate
Einecs: 241-234-5
Molecular Formula: Ba(OH)₂·8H₂O
Grade: Confirm the current product-specific specification.
Package: Confirm packaging requirements for the proposed material and destination.

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Product Description

Barium Hydroxide Octahydrate is a crystalline inorganic hydrate base.

Synonyms: Barium Hydroxide Octahydrate; Barium Dihydroxide Octahydrate; Caustic Baryta Octahydrate.

CAS: 12230-71-6.

EINECS / EC: 241-234-5.

Molecular formula: Ba(OH)₂·8H₂O.

Confirm hydrate form, assay, carbonate content, application, quantity, packaging, destination, and SDS before purchase.

It may be evaluated for chemical synthesis, barium salt preparation, grease thickener systems, and laboratory or industrial process evaluation.

Confirm the current product-specific specification.

Confirm packaging requirements for the proposed material and destination.

Document requirements should be confirmed from the current specification, SDS, COA, or other product-specific files.

Regulated-use suitability must be confirmed separately with current product-specific documentation.

FAQ - Technical & Supply Chain

Q:
What is Barium Hydroxide Octahydrate CAS 12230-71-6?

A: Barium Hydroxide Octahydrate is the hydrated inorganic base Ba(OH)2·8H2O, with molecular weight about 315.46 and EINECS 241-234-5. It is normally a white crystalline powder or crystals with density around 2.18 g/cm3 and water solubility around 56 g/L at 15 deg C.
Q:
Is Barium Hydroxide Octahydrate the same as the monohydrate or anhydrous form?

A: No. CAS 12230-71-6 specifically identifies the octahydrate, Ba(OH)2·8H2O. The monohydrate and anhydrous forms contain less water, have different formula weights and are not equivalent on a mass basis, so the hydrate form should be stated when comparing assay, pricing or feed quantities.
Q:
Which specifications are most important for Barium Hydroxide Octahydrate?

A: Assay and barium carbonate content are key because carbon dioxide exposure can convert barium hydroxide to barium carbonate. Typical grades control assay around 98%-102% and barium carbonate at not more than 1%-2%; chloride, sulfate, substances insoluble in dilute hydrochloric acid and iron are also commonly specified.
Q:
What is Barium Hydroxide Octahydrate used for?

A: It is used as a strong alkaline barium source in analytical chemistry, organic synthesis and barium salt manufacture. Industrial applications also include barium-based grease and lubricant additives, rubber vulcanization and water softening or scale treatment.
Q:
How should Barium Hydroxide Octahydrate be stored, and what should a sourcing inquiry include?

A: Store it in tightly closed packaging that limits moisture and carbon dioxide ingress, in a cool, dry and ventilated area away from acids. A sourcing inquiry should state CAS 12230-71-6, required assay and barium carbonate limit, intended use, quantity, packaging and destination.

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