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Sigma-Aldrich Zinc sulfate heptahydrate, ACS reagent, 99%
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for analysis EMSURE® ACS, ISO, Reag. Ph Eur
Formula: ZnSO₄·7H₂O
CAS Number: 7446-20-0
Specifications:
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | Sigma-Aldrich | ||
| Product Grade | Analytical grade | ||
High-Purity Zinc Salt for Laboratory, Industrial, and Research Applications
Sigma-Aldrich Zinc Sulfate Heptahydrate (ACS Reagent, 99%) is a high-purity, water-soluble zinc salt used in chemical synthesis, catalysis, material science, and biological research. This ACS-grade reagent meets stringent purity specifications, making it suitable for analytical applications, zinc-based nanomaterial synthesis, and industrial processing.
With a solubility of 965 g/L in water at 20°C and a pH range of 4.4-6.0 (5% solution at 25°C), Zinc Sulfate Heptahydrate is widely used as a precursor for zinc oxide nanostructures, a catalyst in various chemical reactions, and an electrolyte additive in electrochemical applications.
Key Features & Benefits
✅ High-Purity ACS Reagent (99%) – Meets stringent quality control for research and industrial use
✅ Highly Soluble in Water (965 g/L at 20°C) – Ensures fast dissolution and high reactivity
✅ pH-Optimized (4.4-6.0 at 5%) – Suitable for buffered and controlled pH applications
✅ Versatile Application in Chemistry & Material Science – Used for nanomaterial synthesis, catalysis, and inorganic chemistry
✅ Low Impurity Levels (Meets ACS Specification) – Minimizes interference in analytical and chemical reactions
✅ Reagent-Grade Zinc Compound for Lab & Industrial Use – Ideal for electrochemistry, catalyst development, and bioassay studies
Technical Specifications
| Attribute | Details |
|---|---|
| Product Name | Zinc Sulfate Heptahydrate |
| Chemical Formula | ZnSO₄ · 7H₂O |
| Molecular Weight | 287.56 g/mol |
| CAS Number | 7446-20-0 |
| EC Number | 231-793-3 |
| Purity (ACS Reagent Grade) | 99.0–103.0% |
| Form | Crystals or Chunks |
| Solubility | 965 g/L in Water at 20°C |
| pH (5% Solution at 25°C) | 4.4–6.0 |
| Storage Conditions | Ambient Temperature |
| Impurity Levels (Max.) | |
| - Insolubles | ≤0.01% |
| - Chloride (Cl⁻) | ≤5 ppm |
| - Nitrate (NO₃⁻) | ≤0.002% |
| - Lead (Pb) | ≤0.003% |
| - Iron (Fe) | ≤0.001% |
| - Calcium (Ca) | ≤0.005% |
| - Magnesium (Mg) | ≤0.005% |
| - Sodium (Na) | ≤0.05% |
| Application Categories | Catalysis, Nanomaterial Synthesis, Electrochemistry, Analytical Chemistry |
Applications
🔬 Chemical Synthesis & Catalysis – Used in catalytic reactions and inorganic synthesis
⚗️ Material Science & Nanotechnology – Precursor for zinc oxide nanostructures and semiconductor materials
🧪 Electrochemistry & Battery Research – Used as an electrolyte additive in galvanic and electrochemical processes
🌱 Agricultural & Soil Chemistry – Functions as a micronutrient in fertilizers and animal feed supplements
🏭 Industrial & Pharmaceutical Use – Utilized in coagulation processes, water treatment, and pharmaceutical formulations
Common Use Cases
1️⃣ Zinc Tris(Thiourea) Sulfate (ZTS) Synthesis
- Used as a nonlinear optical (NLO) material for laser fusion experiments and second-harmonic-generation (SHG) devices.
2️⃣ Nanomaterial Fabrication
- Precursor for high-purity zinc oxide nanostructures via precipitation or hydrothermal methods, enabling applications in catalysis, sensors, and semiconductor technology.
3️⃣ Electrochemical Applications
- Serves as an electrolyte additive in battery research and plating processes, improving zinc deposition efficiency.
4️⃣ Industrial Water Treatment & Coagulation
- Used in wastewater treatment and industrial water purification.
Preparation & Storage Guidelines
1️⃣ Dissolution in Water
- Add Zinc Sulfate Heptahydrate to distilled water, stirring until fully dissolved.
- Ensure proper pH control in reaction setups requiring buffered solutions.
2️⃣ Storage Conditions
- Store at ambient temperature in a dry, well-ventilated area.
- Keep container tightly sealed to prevent moisture absorption.
3️⃣ Handling Precautions
- Use protective equipment (PPE) including gloves, goggles, and lab coats when handling.
- Follow safety regulations for reagent disposal according to local environmental guidelines.
Ordering Information
| Pack Size | Catalog Number |
|---|---|
| 100 g | 221376-100G |
| 500 g | 221376-500G |
| 1 kg | 221376-1KG |
Regulatory & Safety Information
⚠️ For Laboratory & Industrial Use Only. Not intended for human or animal consumption.
⚠️ Handle with Caution. Avoid inhalation, ingestion, and direct skin contact.
⚠️ Environmental Impact Considerations. Ensure proper waste disposal as per regulations.
Why Choose Sigma-Aldrich Zinc Sulfate Heptahydrate (ACS Reagent, 99%)?
🔹 High-Purity (99%) for Analytical & Industrial Applications
🔹 ACS Reagent Grade for Precise Chemical Reactions
🔹 Highly Soluble in Water for Easy Preparation & Use
🔹 Low Impurity Levels for Consistent & Reliable Results
🔹 Versatile Applications in Catalysis, Nanotechnology, and Agriculture
For bulk orders, technical support, or additional information, contact LabMart Limited today. 🚀
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