Anhydrous Barium Chloride Extra Pure

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SHORT DESCRIPTION

Anhydrous Barium Chloride Extra Pure is a high-purity, white crystalline compound widely used in laboratory chemistry for analytical, inorganic, and materials science applications. It serves as a key reagent for the qualitative and quantitative determination of sulfate ions, forming an insoluble barium sulfate precipitate in gravimetric analysis. Additionally, it is employed in the synthesis of other barium compounds, in flame tests for barium detection, and in studies involving ionic conductivity and salt solubility. The anhydrous form is especially useful in moisture-sensitive reactions and precise stoichiometric formulations. Its extra pure grade ensures minimal contamination, making it ideal for high-accuracy research. It should be handled with care and stored in tightly sealed containers in a dry, cool environment to prevent hydration and preserve reactivity.

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Category: LABORATORY CHEMICALS Tags: AnalyticalReagent, AnhydrousCompound, BariumSalt, GravimetricAnalysis, HighPurityBaCl2, SulfateDetection, ToxicReagent, WaterTesting

Description

USES

Table of Contents

Primary Uses

Reagent for Sulfate Ion Detection
- Reacts with SO₄²⁻ to form insoluble barium sulfate (BaSO₄) — a classical test for the qualitative and gravimetric analysis of sulfate ions.
Source of Barium Ions in Inorganic Chemistry
- Supplies Ba²⁺ for precipitation reactions, double salt formation, and study of ionic equilibria.
Precursor for Synthesis of Other Barium Salts
- Used to prepare barium nitrate, barium carbonate, or barium titanate in lab-scale material synthesis.
Demonstration of Flame Tests and Spectroscopy
- Produces a green flame in flame tests, useful in qualitative spectroscopy and elemental identification exercises.
Component in High-Purity Chemical Reactions
- Used when moisture must be excluded (e.g., non-aqueous syntheses) or where anhydrous conditions are critical.

Secondary Uses

Reagent in Water Hardness and Ion Exchange Studies
- Useful in exploring water treatment chemistry, especially regarding removal or identification of sulfate and carbonate hardness.
Crystal Growth and Solid-State Chemistry
- Involved in growing single crystals for X-ray diffraction or structure–property studies in barium-containing compounds.
Component in Conductivity and Solubility Experiments
- Employed in solution conductivity experiments to demonstrate ionic mobility and solubility differences.
Investigation of Precipitation Kinetics and Equilibria
- A model salt for studying solubility product (Ksp) and reaction dynamics of sparingly soluble salts.
Teaching Reagent for Group II Cation Identification
- Helps distinguish Group II metal ions (e.g., Ca²⁺, Sr²⁺, Ba²⁺) based on precipitation and flame color.

KEY PRODUCT FEATURES

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: Barium Chloride (Anhydrous)
CAS Number: 10361-37-2
HS Code: 28273990 (Barium chloride, other than hydrated or analytical grade)
Molecular Formula: BaCl₂
Synonyms:
- Barium dichloride
- Barium(II) chloride
- Chlorobarium
- Anhydrous BaCl₂

2. Physical & Chemical Properties

Physical State: Solid (crystalline powder)
Color & Odor: White crystals; odorless
Boiling Point: ~1560 °C
Melting Point: ~962 °C
Density/Specific Gravity: ~3.86 g/cm³
Solubility:
- Water: Soluble (~37 g/100 mL at 20 °C)
- Alcohol: Insoluble
pH Level: ~6–8 (in aqueous solution)
Vapor Pressure: Negligible
Flash Point: Not flammable
Autoignition Temperature: Not applicable
Viscosity: Not applicable

3. Safety & Hazard Attributes

Hazard Class (GHS):
- Acute Toxicity – Oral (Category 3)
- Serious Eye Irritation (Category 2A)
- Specific Target Organ Toxicity – Single Exposure (Category 1: cardiovascular and muscular systems)
NFPA Ratings:
- Health: 3
- Flammability: 0
- Reactivity: 0
Exposure Limits:
- ACGIH TLV (for soluble barium salts): 0.5 mg/m³ (as Ba)
Reactivity:
- Stable under normal conditions
- Incompatible with strong acids (releases toxic HCl and barium ions)

4. Storage & Handling Attributes

Storage Conditions:
- Store in a dry, cool, well-ventilated area
- Hygroscopic – keep container tightly closed
Incompatible Materials:
- Acids, sulfates, and oxidizing agents
Container Type:
- Sealed plastic or glass containers
Shelf Life & Expiration Date:
- ~3 years if kept dry and sealed
Special Handling Requirements:
- Use gloves, goggles, and lab coat
- Prevent dust inhalation and ingestion
- Use a fume hood if handling powders

5. Regulatory & Compliance Attributes

Regulatory Status:
- Listed in TSCA, REACH
- Toxic substance – regulated under workplace safety laws
Transportation Restrictions:
- Not classified as hazardous for transport in small lab quantities
Waste Disposal Method:
- Dispose as hazardous waste
- Avoid contact with drains due to barium ion toxicity

6. Environmental & Health Impact

Ecotoxicity:
- Very toxic to aquatic life (especially due to barium ions)
Persistence in Environment:
- Inorganic; does not degrade but can accumulate
Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic
Biodegradability:
- Not biodegradable

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):
- Wear a lab coat, chemical splash goggles, and chemical-resistant gloves (nitrile recommended).
- Use in a fume hood or well-ventilated area to avoid inhaling dust.
Handling:
- Avoid inhalation, ingestion, and contact with skin or eyes.
- Handle with care to minimize dust generation—dust is toxic.
- Keep away from acids (may form toxic hydrogen chloride gas) and moisture (hygroscopic).
Storage:
- Store in a tightly sealed container in a cool, dry, well-ventilated place.
- Keep away from acids, moisture, and oxidizing agents.
- Label clearly as Toxic and Harmful if swallowed.
Hygiene Measures:
- Wash hands and face thoroughly after handling.
- Avoid cross-contamination with food, drinks, or cosmetics.
- Clean all work surfaces after use.

FIRST AID MEASURES

Inhalation:
- Move the person to fresh air immediately.
- If breathing is difficult, give oxygen and seek immediate medical attention.
- Inhalation of dust may cause respiratory irritation or systemic toxicity.
Skin Contact:
- Wash the affected area thoroughly with soap and water.
- Remove contaminated clothing.
- Seek medical attention if irritation develops.
Eye Contact:
- Rinse eyes immediately with plenty of water for at least 15 minutes.
- Hold eyelids open and remove contact lenses if present.
- Seek immediate medical attention—can cause eye irritation or burns.
Ingestion:
- Do NOT induce vomiting.
- Rinse mouth with water.
- If the person is conscious, give water or milk to dilute.
- Seek immediate medical attention—barium compounds are highly toxic and may cause:
  - Muscle weakness
  - Arrhythmias
  - Gastrointestinal pain
  - Hypokalemia

FIRE FIGHTING MEASURES

Suitable Extinguishing Media:
- Use dry chemical, carbon dioxide (CO₂), or appropriate foam.
- Water spray may be used only for cooling—not on the chemical directly.
Specific Hazards:
- Not flammable, but may decompose on heating, releasing:
  - Chloride vapors
  - Barium oxides (toxic dust)
Protective Equipment for Firefighters:
- Wear self-contained breathing apparatus (SCBA) and full protective gear.
Firefighting Instructions:
- Prevent spread of dust or contamination of water supplies.
- Avoid runoff—barium salts are toxic to aquatic life and soil.