Barium Hydroxide – Properties, Uses, Applications & Industrial Benefits
Barium Hydroxide is a strong inorganic base used in a variety of chemical, industrial, laboratory, and manufacturing applications. It is commonly available as Barium Hydroxide Octahydrate [Ba(OH)₂·8H₂O] and, in some applications, as anhydrous Barium Hydroxide.
Its strong alkalinity and ability to react with acids and sulfate-containing compounds make it a useful chemical for chemical synthesis, wastewater treatment, industrial processing, and specialty chemical manufacturing.
Barium hydroxide has the molecular formula of Ba(OH)2 and the molecular weight of 121.6324 g/mol. It occurs as an anhydrate whose prismatic, colorless crystals are very deliquescent. Barium hydroxide can be prepared by dissolving barium oxide
What is Barium Hydroxide?
Barium Hydroxide is an inorganic compound consisting of barium, oxygen, and hydrogen. The octahydrate form is generally supplied as a white crystalline solid.
Chemical formula: Ba(OH)₂
Common hydrated form: Ba(OH)₂·8H₂O
CAS No. (octahydrate): 12230-71-6
Barium Hydroxide produces a strongly alkaline solution in water and can neutralize acids effectively.
Key Properties
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Strong alkaline compound
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Reacts readily with acids
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Forms insoluble barium sulfate with sulfate ions
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Available in hydrated and anhydrous forms
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Useful as a chemical reagent and synthesis intermediate
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Suitable for selected industrial and laboratory applications
Barium Hydroxide Octahydrate
Barium Hydroxide Octahydrate is one of the most commonly supplied commercial forms. It contains eight molecules of water of crystallization.
The octahydrate should not be substituted directly on a weight-for-weight basis for anhydrous Barium Hydroxide because their molecular weights and active Ba(OH)₂ content differ.
Major Applications of Barium Hydroxide
1. Chemical Manufacturing
Barium Hydroxide is used as a raw material and reagent for producing various barium compounds and specialty chemicals.
2. Esterification and Organic Synthesis
It can be used as a strong base in selected chemical reactions, including hydrolysis and esterification-related processes.
3. Sulfate Removal
Barium Hydroxide reacts with sulfate ions to form insoluble Barium Sulfate (BaSO₄). This property can be utilized in specific chemical-treatment processes where sulfate precipitation is required.
4. Water and Wastewater Treatment
In controlled industrial applications, Barium Hydroxide can be used for pH adjustment and precipitation of selected anions. Treatment chemistry must be carefully designed because soluble barium compounds require appropriate containment and management.
5. Petroleum and Industrial Applications
Barium compounds have applications across petroleum-related and industrial chemical processes. Specific use of Barium Hydroxide depends on the process chemistry and required specifications.
6. Lubricating Greases
Barium compounds have historically been used in the manufacture of certain specialty lubricating greases and related formulations.
7. Laboratory Applications
Barium Hydroxide is used as a chemical reagent for analytical and research purposes, particularly where a strong alkaline medium is required.
Barium Hydroxide Supplier
When sourcing Barium Hydroxide, industrial buyers should confirm:
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Anhydrous or octahydrate grade
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Purity
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Particle size
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Technical or laboratory grade
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Packaging
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Certificate of Analysis (COA)
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Safety Data Sheet (SDS)
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Batch consistency
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Application requirements
A reliable chemical supplier should provide appropriate technical documentation and handling information.

| Product Name | Barium Hydroxide |
| Part Number | RXSOL-19-6604-019 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai , Chennai, Vizag, Kolkata, UAE , OMAN , CANADA and KENYA
| Phone | +91 22 20871200 - 1400 |
| Fax | +91 22 27612100 :::AOH :0091 9821214367 |
| mail@rxmarine.com | |
| Website | www.rxmraine.comA |

| Chemical Name | CAS | EC number | Weight | Formula |
| Barium Hydroxide | 17194-00-2 | 241-234-5 | = 100 % | H2BaO2 |

| Signal Word | Danger |
| Hazard Statements | H302 + H332 Harmful if swallowed or if inhaled. H314 Causes severe skin burns and eye damage. |
| Precautionary statements | P260 Do not breathe dusts or mists. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P312 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Classification of the substance or mixture | Not a hazardous substance or mixture according to Regulation (EC) No 1272/2008. |
| Supplemental Hazard Statements | None. |
| Other hazards | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |

| General advice | First aiders need to protect themselves. Show this material safety data sheet to the doctor in attendance. |
| If inhaled | After inhalation: fresh air. Immediately call in physician. If breathing stops: immediately apply artificial respiration, if necessary also oxygen. |
| Eye Contact | After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist. Remove contact lenses. |
| Swallowed | After swallowing: make victim drink water (two glasses at most), avoid vomiting (risk of perforation). Call a physician immediately. Do not attempt to neutralise. |
| Skin Contact | In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately. |
| Inhalation | Remove patient to fresh air, keep warm and at rest and get medical assistance in necessary. |
| Ingestion | Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately. |
| Most important symptoms and effects, both acute and delaye | The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 |
| Indication of any immediate medical attention and special treatment needed | No data available |

| Flammability | Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. |
| Flash Point | Dry powder Dry sand |
| Suitable extinguishing media | Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. |
| Unsuitable extinguishing media | For this substance/mixture no limitations of extinguishing agents are given. |
| Special hazards arising from the substance or mixture | Barium oxide Not combustible. Ambient fire may liberate hazardous vapours. |
| Further information | Prevent fire extinguishing water from contaminating surface water or the ground water system. |
|
Hazardous combustion products |
Fire may cause the evolution of Sulphur oxides, nitrogen oxides. |
| Advice for firefighters | Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing. |
| Protective Equipment | Use personal protective equipment. |
| Specific Hazards Arising from the Chemical | Oxides of phosphorus Sodium oxides Not combustible. Fire may cause evolution of: Oxides of phosphorus Ambient fire may liberate hazardous vapours. |

| Personal precautions, protective equipment and emergency procedures | Advice for non-emergency personnel: Avoid inhalation of dusts. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8 |
| Spillage | Oxidizing material. Stop leak if without risk. Avoid contact with a combustible material (wood, paper, oil, clothing...). Keep substance damp using water spray. Do not touch spilled material. Prevent entry into sewers, basements or confined areas dike if needed. Eliminate all ignition sources. Call for assistance on disposal. |
| Enviromental Precaution | Do not let product enter drains. |
|
Methods and materials for containment and cleaning |
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts.Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts. |

| Advice on protection against fire and explosion | Keep away from open flames, hot surfaces and sources of ignition. |
| Incompatible materials | Keep away from alkalis, strong oxidizing agents and metals. Provide containment walls of adequate capacity to hold any accidental spills. |
| Hygiene measures | Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance. For precautions see section 2.2. |
| Precautions for safe handling | Work under hood. Do not inhale substance/mixture. |
| Storage conditions | Tightly closed. Dry. Air sensitive. |
| Storage class | Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated. |
| Advice on general occupational hygiene | Advice on safe handling Observe label precautions. Change contaminated clothing. Wash hands after working with substance. |
| Requirements for storage | Keep in cool and store under shade. |

| Exposure controls | Appropriate engineering controls Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. |
| Control parameters | Ingredients with workplace control parameters Contains no substances with occupational exposure limit values. |
| Engineering Control | Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. |
| Eye/face protection | Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles |
| Body Protection | Protective clothing |
| Skin protection | This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Full contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:KCL 741 Dermatril® L Splash contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:KCL 741 Dermatril® L |
| Respiratory protection | Required when dusts are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type P2 The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented. |
| Other Protection Measure | Handle in accordance with good industrial hygiene and safety practice. |
| Control of environmental exposure | Do not let product enter drains. |

| Physical state | Powder |
| Colour | White |
| Odour | No data available |
| Odor Threshold | No data available |
| pH | 12,5 at 50 g/l at 20 °C |
| Melting Point | > 300 °C - lit. |
| Boiling Point | >= 430 °C at > 998 - 1.013 hPa |
| Flash Point | No data available |
| Evaporation Rate | Not Applicable |
| Flammability (solid, gas) | No data available |
| Explosive limits | No Data Available |
| Upper/lower flammability or explosive limits | No data available |
| Autoignition temperature | No data available |
| Decomposition temperature | No data available |
| Vapour pressure | No data available |
| Density | 2,2 g/mL at 25 °C - lit. |
| Relative Density | No data available |
| Relative vapor density | No data available |
| Freezing point | No data available |
| Viscosity | No data available |
| Partition coefficient | No data available |
| Explosive properties | No data available |
| Solubility | No data available |
| Ignition temperature | No information available. |
| Particle characteristics | No data available |

| Reactivity | No data available |
| Stability | The product is chemically stable under standard ambient conditions (room temperature) . |
| Possibility of hazardous reactions | No data available |
| Conditions to avoid | No data available |
| Incompatible materials | Acids, Strong oxidizing agents |
| Hazardous decomposition products | In the event of fire: see section 5 |

| Acute toxicity | LD50 Oral - Rat - 308 mg/kg Remarks: (RTECS) Behavioral:Somnolence (general depressed activity). Behavioral:Tetany. Acute toxicity estimate Inhalation - 1,6 mg/l - dust/mist(Expert judgment) Acute toxicity estimate Inhalation - 1,6 mg/l - dust/mist (Expert judgment) Dermal: No data available |
| Skin corrosion/irritation | Remarks: No data available |
| Serious eye damage/eye irritation | Remarks: Causes serious eye damage. |
| Respiratory or skin sensitization | Local lymph node assay (LLNA) - Mouse Result: negative (OECD Test Guideline 429) The value is given in analogy to the following substances: Barium chloride dihydrate |
| Toxic Effects on Human | May cause damage to the following organs: upper respiratory tract. Other Toxic Effects on Humans: Hazardous in case of skin contact (irritant, sensitizer), of ingestion, of inhalation (lung irritant, lung sensitizer). |
| Carcinogenicity | No data available |
| Germ cell mutagenicity | No data available |
| Reproductive toxicity | No data available |
| Specific target organ toxicity - single exposure | No data available |
| Special Remarks on other Toxi Effects on Humans | Acute Potential Health Effects: Skin: Causes skin irritation. May cause skin sensitization, an allergic reation, which becomes evident upon re-exposure to this material. Eyes: Causes eye irritation. Ingestion: Causes gastrointestinal (digestive) tract irritation with nausea, vomiting, and diarrhea. May be harmful if swallowed. Inhalation: Causes respiratory tract irritation. May cause chemical pneumonitis and pulmonary edema, inflammation, edema of bronchi and larynx. Chronic Potential Health Effects: Repeated or prolonged skin exposure may cause allergic reactions in sensitive individuals. Repeated or prolonged exposure by inhalation may affect respiration and metabolism. |
| Endocrine disrupting properties | The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher. RTECS: CQ9200000 Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin., Cough, Shortness of breath, Headache, Nausea To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. Systemic effects: After absorption: Dizziness Nausea Vomiting Diarrhea CNS disorders Cardiac irregularities Other information The following applies to soluble barium compounds in general: after swallowing: mucosal irritation, nausea, salivation, vomiting, dizziness, pain, colics, and diarrhoea. Systemic effects include: cardiac dysrhythmias, bradycardia (subdued cardiac activity), rise in blood pressure, shock and circulatory collapse as well as muscular rigidity. Handle in accordance with good industrial hygiene and safety practice. . |

| Bioaccumulative potential | No data available |
| Persistence and degradability | The methods for determining the biological degradability are not applicable to inorganic substances. |
| Toxicity to fish | LC50 - Lepomis macrochirus (Bluegill) - 0,24 mg/l - 96 h |
| Toxicity to daphnia and other aquatic invertebrates | Flow-through test EC50 - Ceriodaphnia dubia (water flea) - 0,035 mg/l - 48 h (OECD Test Guideline 202) |
| Toxicity to algae | Flow-through test NOEC - algae - 0,002 mg/l - 7 Days Remarks: (in analogy to similar products) (ECHA) The value is given in analogy to the following substances: sodium hypochlorite solution |
| Toxicity to bacteria | Static test EC50 - activated sludge - 563 mg/l - 3 h (OECD Test Guideline 209) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: sodium hypochlorite solution |
| Mobility in soil | No Information available |
| Results of PBT and vPvB assessment | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |
| Endocrine disrupting properties | The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher. |
| Other adverse effects | We have no quantitative data concerning the ecological effects of this product. Biological effects: Harmful effect due to pH shift. Hazard for drinking water supplies. Further information on ecology Discharge into the environment must be avoided. |

| Disposal methods | The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems. |
| Contaminated packaging | Dispose of as unused product. |
| Waste treatment Method | See www.retrologistik.com for processes regarding the return of chemicals and containers, or contact us there if you have further questions. |

| UN number | ADR/RID: 3262 IMDG: 3262 IATA: 3262 |
| UN proper shipping name |
ADR/RID: CORROSIVE SOLID, BASIC, INORGANIC, N.O.S. (barium hydroxide) IMDG: CORROSIVE SOLID, BASIC, INORGANIC, N.O.S. (barium hydroxide) IATA:CORROSIVE SOLID, BASIC, INORGANIC, N.O.S. (barium hydroxide) |
| Transport hazard class(es) | ADR/RID: 8 IMDG: 8 IATA: 8 |
| Packaging group | ADR/RID: II IMDG: II IATA: II |
| Environmental hazards | ADR/RID: NO IMDG: NO IATA: NO |
| Further information | No data available |

| Inventory status | Components are on the following inventories: Polymaleic acid: - US TSCA, Canadian DSL, EU EINECS, Australian AICS, Korean, Philippine PICCS and Chinese Xi irritant R 36/38 Irritant to eyes & skin R 41 Risk of serious damage to eyes S24/25 Avoid contact with skin and eyes S26/28 In case of contact eyes & skin, rinse with plenty water and seek medical advice Section 312/313: Not listed. Not listed under California proposition 65. |
| Safety, health and environmental regulations/legislation specific for the substance or mixture | This material safety data sheet complies with the requirements of Regulation (EC) No. 1907/2006. |
| National legislation | Seveso III: Directive 2012/18/EU of the European Parliament and of the Council on the control of major-accident hazards involving dangerous substances. : ACUTE TOXIC : ENVIRONMENTAL HAZARDS |
| Other regulations | Observe work restrictions regarding maternity protection in accordance to Dir 92/85/EEC or stricter national regulations where applicable. Take note of Dir 94/33/EC on the protection of young people at work. |
| Chemical Safety Assessment | For this product a chemical safety assessment was not carried out |

| Other Information |
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and weassume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Rx Marine International has been advised of the possibility of such damages. DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable. |