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Ferrous Sulphate heptahydrate 99% Extra Pure
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SHORT DESCRIPTION
Ferrous Sulphate Heptahydrate 99% Extra Pure is a high-purity laboratory-grade chemical commonly used as a reliable source of ferrous ions (Fe²⁺) in analytical chemistry and educational experiments. With its vivid blue-green crystalline appearance, this compound plays a crucial role in redox reactions, qualitative analysis, and titration procedures. It is frequently utilized in the preparation of iron standards, as a reducing agent, and in experiments that demonstrate oxidation-reduction principles. Due to its high level of purity, it is well-suited for controlled laboratory environments where consistent and accurate results are essential. Proper storage in a cool, dry place is recommended, as the compound is prone to oxidation and moisture sensitivity.
Description
USES
Primary Laboratory Uses:
- Source of Fe²⁺ ions:
Commonly used in analytical and inorganic chemistry experiments where ferrous (iron(II)) ions are required. - Reagent in redox titrations:
Acts as a reducing agent in permanganate and dichromate titrations for standardization or analysis of oxidizers. - Precipitation reactions and qualitative analysis:
Helps in identification and separation of anions and cations by forming precipitates with other compounds. - Preparation of iron compounds:
Used to synthesize other iron-based salts and coordination complexes in lab research.
Secondary Laboratory Uses:
- Demonstrations of oxidation states and color changes:
Useful in teaching redox chemistry as Fe²⁺ readily oxidizes to Fe³⁺, showing distinct color changes. - Nutrient in plant physiology experiments:
Serves as an iron supplement in hydroponic and soil studies investigating micronutrient deficiencies. - Simulated wastewater treatment studies:
Applied in lab-scale research to evaluate the role of ferrous ions in phosphate removal or heavy metal precipitation. - Corrosion experiments:
Used to investigate rusting and oxidation of iron, especially in controlled electrochemical studies.
KEY PRODUCT FEATURES
KEY ATTRIBUTES
1. Basic Identification Attributes
- Chemical Name: Ferrous Sulphate Heptahydrate
- Synonyms: Iron(II) sulfate heptahydrate, Green vitriol, Copperas
- Chemical Formula: FeSO₄·7H₂O
- Molecular Weight: 278.01 g/mol
- Grade: Extra Pure (Laboratory Reagent Grade, 99%)
- Appearance: Blue-green crystalline solid
- Odor: Odorless
2. Physical & Chemical Properties
- Solubility: Soluble in water
- Melting Point: Decomposes before melting (~64°C loses water)
- pH (5% solution): ~3.0–4.0
- Hygroscopic: Yes
- Stability: Stable under recommended storage; oxidizes slowly in air to form brown iron(III) compounds
3. Safety & Hazard Attributes
- GHS Classification:
- Harmful if swallowed (Acute toxicity Category 4)
- Causes eye irritation (Category 2A)
- May cause respiratory irritation (STOT SE Category 3)
- Hazard Statements:
- H302: Harmful if swallowed
- H319: Causes serious eye irritation
- H335: May cause respiratory irritation
- PPE Requirements:
- Gloves
- Safety goggles
- Lab coat
- Dust mask (if powder is airborne)
- First Aid Measures:
- Inhalation: Move to fresh air; seek medical attention if symptoms persist
- Skin Contact: Rinse with water and soap
- Eye Contact: Flush thoroughly with water for 15 minutes
- Ingestion: Rinse mouth, do not induce vomiting; consult physician immediately
4. Storage & Handling Attributes
- Storage Conditions:
- Store in cool, dry place in tightly sealed container
- Protect from light and air exposure
- Avoid exposure to moisture
- Handling Notes:
- Minimize dust generation
- Avoid breathing dust
- Wash hands thoroughly after use
5. Regulatory & Compliance Attributes
- CAS Number: 7782-63-0
- EC Number: 231-753-5
- UN Number: Not classified as hazardous for transport
- Hazard Class: Not applicable
- Packaging Group: Not applicable
6. Laboratory Applications
- Primary Uses:
- Reagent in redox titrations and analytical chemistry
- Source of ferrous ion in chemical synthesis
- Demonstrating oxidation and crystal growth in experiments
- Secondary Uses:
- Nutrient in plant and algae growth media
- Catalyst in Fenton’s reagent for oxidation studies
- Educational demonstration of iron salt reactions
SAFETY HANDLING PRECAUTIONS
SAFETY MEASURES
SAFETY & HANDLING
- Irritant – may cause eye, skin, or respiratory irritation
- Can stain skin and surfaces
- Avoid contact with oxidizing agents and moisture
Storage:
- Store in a cool, dry place, in air-tight containers
- Keep away from light, air, and acids to avoid oxidation
FIRST AID MEASURES
- Inhalation: Move to fresh air; seek attention if irritation persists
- Skin Contact: Wash off thoroughly with soap and water
- Eye Contact: Rinse eyes for several minutes; consult physician if needed
- Ingestion: Rinse mouth; do not induce vomiting; seek medical help
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