What is Barium Hydroxide?

It is a chemical substance the is also known as “Baryta”. That is a link of Barium, a soft silvery metal of the alkali planet group.

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It deserve to be developed by dissolve Barium Oxide (represented as BaO) in water. It is expressed by this chemistry reaction:

BaO + 9 H2O → Ba(OH)2·8H2O

Chemical Formula

The chemical formula because that Barium Hydroxide is Ba(OH)2.

Molar Mass

The molar mass of Barium Hydroxide is

171.34 g/mol (in Anhydrous solutions)189.355 g/mol (Monohydrate)315.46 g/mol (Octahydrate)

Is Barium Hydroxide soluble In Water?

The solubility that Barium Hydroxide is center in water. However, this compound is insoluble in acetone. At room temperature, it can create a solution. The Barium Hydroxide systems is uncovered to have actually an almost right concentration the 0.1 mol dm-3.

photo 1 – Barium Hydroxide Source – flourish2010.en.made-in-china.com

Barium Hydroxide Properties

The physical and chemical nature of this compound room as follows:


This is a steady compound. The is incompatible through carbon dioxide, acids, and moisture. That is crucial to stop making contact with this substance v incompatible materials.


This is a crystalline substance that can selection from white to transparent in appearance.

Specific Gravity

The details gravity the this problem is 2.18.

Melting Point

The substance melts at a temperature the 408 °C.

Boiling Point

The product boils in ~ a temperature that 780 °C.

pH Value

The ph value of barium hydroxide actually relies on that is concentration. That said, the pH of this compound is around -2. This indicates that the is highly simple in nature.


It has actually a thickness of 2.18 every g cm-3

Molecular Formula

The molecular formula of Barium Hydroxide Octahydrate is BaH18O10.

Barium Hydroxide Octahydrate

This is a chemical link that shows up as a white crystalline powder. That is solid and also soluble in water. It has a melting allude of 78 °C.

It is also known by various other names like

Barium hydrateBarium hydroxide8-hydrate

Barium Hydroxide Uses

It is used for a variety of purposes, together as

In manufacturing alkaliIn building glassIn fabricated rubber vulcanizationIn corrosion inhibitorsAs drilling fluids, pesticides and lubricantsFor boiler range remedyFor refining vegetable and animal oilsFor fresco paintingIn softening waterAs an ingredient the homeopathic remediesTo clean up acidic spills

It is additionally used in the sugar market for preparing beet sugar.

Barium Hydroxide MSDS

The material Safety Data sheet (MSDS) because that Barium Hydroxide is together follows:

Safety Measures

This substance deserve to be harmful if inhaled, swallowed, or also exposed to. Straight exposure to the skin, eye or clothing can it is in dangerous. Hands need to be extensively washed after handling this material. If clothing come in contact with this substance, they should instantly be removed. Any an ar of skin exposed come this link should immediately be washed v cold water and also a light soap.


Prolonged exposure to this substance may an outcome in skin irritation. Lungs and respiratory passages can be excited by the dust of this material. Gulp down may lead to a variety of discomforting symptoms, together as

NauseaVomitingHeadacheDizzinessGastrointestinal irritation

Individuals with pre-existing conditions of the respiratory system, skin or eyes may become more susceptible to having one or more of the aforementioned symptoms.

Personal Safety

It is vital to save this material safely to avoid any type of spillage and also fire hazards. Any kind of fire started from this substance deserve to be controlled by fire-extinguishers. Individuals using this compound must wear safety clothing and also use self-contained breath apparatus to prevent contact of this material with eyes, clothes, or skin.

Barium Hydroxide and also Hydrochloric Acid

Barium Hydroxide is provided for neutralizing Hydrochloric Acid. The chemical reaction between the two compounds is given as:

Ba(OH)2 (aqueous) + 2HCl (aqueous) –> BaCl2 (aqueous) + 2H2O (liquid)

Barium Hydroxide and also Sulfuric Acid

Barium Hydroxide is regularly used come neutralize Sulfuric Acid. The reaction is expressed with this representation:

Ba(OH)2(solid) + H2SO4(aqueous) → BaSO4(solid) + 2H2O(liquid)

The little amount that BaSO4 which is acquired from the moderately dissolve Ba(OH)2 coats and precipitates the Ba(OH)2. Together a result, the reaction between H2SO4 and Ba(OH)2 pertains to a halt.

Barium Hydroxide and also Ammonium Chloride

The neutralization reaction of solid hydrated barium hydroxide v solid ammonium chloride is endothermic in nature. The reaction to produce a liquid, accompanied by a autumn in the temperature to about -20 °C. That is stood for as:

Ba(OH)2 (aqueous) + 2NH4Cl (aqueous) → BaCl2 (aqueous) + 2NH3 (gaseous) + HOH (liquid).

Barium Hydroxide and Ammonium Thiocyanate

This is an endothermic reaction the produces Barium Thiocyanate. The is expressed v this chemistry reaction:

Ba(OH)2.8H2O (solid) + 2 NH4SCN (solid) → Ba(SCN)2 (solid) + 10 H2O (liquid) + 2 NH3 (gaseous).

Barium Hydroxide Monohydrate

This chemical compound appears as a white powder. That is additionally known by various other names like

Dried Barium HydroxideCaustic Baryta MonohydrateBarium Hydroxide 1-Hydrate

The compound is supplied for assorted purposes like

Purifying waterManufacturing oil additivesMaking lubricating substancesMaking barium-rich chemicals

Skin contact, inhalation, or gulp down of this product can cause dangerous health and wellness hazards. In acute cases, fatality may also occur. This is a non-inflammable substance yet can decompose on exposure come heat and also produce toxicity and/or corrosive flames. It should be save in containers in a cool, dry place and constantly kept far from heat. Otherwise, containers may explode in a heated environment.

Is Barium Hydroxide solid Or Weak Base?

This link is rather soluble in water. That is pertained to as the just dibasic strong base. The is capable of make litmus file blue and can kind salt and water on reacting v acid.

Barium Hydroxide and also Nitric Acid

Barium Hydroxide reacts with Nitric acid to produce a salt (Barium Nitrate) and also water, together in the situation of standard acid-base reactions. The chemical reaction is to express as:

2HNO3(aqueous Nitric acid) + Ba(OH)2(aqueous Barium Hydroxide) → Ba(NO3)2(aqueous Barium Nitrate) + 2H2O(water)

Barium Hydroxide and Carbon Dioxide

Ba(OH)2 reacts with Carbon Dioxide to develop Barium Carbonate. This is express by the following chemical reaction:

Ba(OH)2 + CO2 → BaCO3 + H2O.

Perchloric Acid and also Barium Hydroxide

Two molecules of Perchloric acid react v one molecule the barium hydroxide to produce two molecule of water and also one molecule that Barium Perchlorate (also known simply together Barium Chlorate). The reaction is expressed as

Ba(OH)2 + 2 HClO4 (aqueous) → Ba(ClO4)2 (aqueous) + 2 H2O (liquid).

Barium hydroxide used in this reaction is one of two people a solid or a highly dilute aqueous solution.

Acetic Acid and also Barium Hydroxide

Two molecule of Acetic mountain react with one molecule that Barium Hydroxide to kind a salt (Barium Nitrate) in addition to water, like any other acid-base reaction. That is to express as:

2 CH3COOH + Ba(OH)2 → Ba(C2H3O2)2 + 2H2O

The reaction have the right to be made simpler by substituting C2H3O2 with Ac. Hence replaced, the chemistry reaction may be offered as:

2 HAc + Ba(OH)2 → Ba(Ac)2 + 2H2O

Barium Hydroxide and Phosphoric Acid

This acid-base neutralization reaction entails the participation of three molecules the Barium Hydroxide and two molecules of Phosphoric Acid. The formulaic depiction for this chemistry reaction is together follows:

3 Ba(OH)2 + 2 H3PO4 → Ba3(PO4)2 + 6H2O

It leader to the precipitation that Barium Phosphate. This can be related to as a “Double Replacement” reaction in i beg your pardon barium replace instead instead hydrogen which consequently replaces barium.

3 Ba(OH)2 + 2 H3PO4 → Ba3(PO4)2 + 6HOH

Barium Hydroxide and Ammonium Nitrate

Two molecule of aqueous Barium Hydroxide react with aqueous Ammonium Nitrate to type aqueous options of Barium Nitrate, Ammonia, and water. The chemical reaction is offered as:

Ba(OH)2 (aqueous) + 2 NH4NO3 (aqueous) → Ba(NO3)2 (aqueous) + 2 NH3 (aqueous) + 2 H2O (liquid).

Ammonia may dissolve into the solution until saturated. It deserve to then evolve into a gas, thereby completing the chemistry change.

Barium Hydroxide and Ammonium Chloride

Solid ammonium chloride is combined with heavy hydrated barium hydroxide in a beaker to type Barium Chloride. Gas ammonia and also Hydrogen Hydroxide (water) are the other products resulting indigenous this endothermic reaction. The temperature dramatically drops to around -20 °C in this cool reaction.

The formulaic representation of this reaction is as follows:

Ba(OH)2 (aqueous) + 2NH4Cl (aqueous) → BaCl2 (aqueous) + 2NH3 (gaseous) + HOH (liquid)

Barium Hydroxide Octahydrate and Ammonium Thiocyanate

Ammonium Thiocyanate (NH4SCN) is mixed with heavy Barium Hydroxide Octahydrate (Ba(OH)2.8H2O) to develop Barium Thiocyanate. The acid-base reaction produce a simple gas that can be detected by pH paper.

The equation for this endothermic reaction is provided as:

Ba(OH)2.8H2O(solid) + 2 NH4SCN(solid) → Ba(SCN)2(s ) + 10 H2O(liquid) + 2 NH3(gaseous).

This is one endothermic reaction that absorbs warmth from the environment. This leads to a fast drop in the temperature the this reaction, which can be review with the assist of a digital thermometer. It renders the beaker freeze to the wooden board. This is the factor why the beaker must be rested on a small board with a couple of drops the water poured on it.

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Barium Hydroxide is one of the main compounds that Barium. Commercially, that is most commonly obtainable as a white granular monohydrate.