Cobalt Chloride Paper

Here’s a detailed description of **Cobalt Chloride Paper (100 Leaves)**:

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### 🧪 Cobalt Chloride Paper – Laboratory Indicator Sheets

#### 📦 Packaging

- **Quantity**: 100 individual leaves

- **Container**: Typically packed in a moisture-resistant envelope or plastic box to prevent premature exposure

- **Labeling**: Marked with product name, concentration, and safety instructions

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### 📄 Physical Characteristics

- **Size**: Each leaf is usually small—around 2 cm × 5 cm or similar dimensions

- **Color (Dry)**: Pale blue or lavender when dry

- **Color (Wet)**: Turns pink upon exposure to moisture or humidity

- **Material**: Thin, absorbent paper impregnated with cobalt(II) chloride solution and dried

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### 🔍 Function & Use

- **Purpose**: Used as a humidity indicator or to detect the presence of water vapor

- **Applications**:

- Science experiments (e.g., demonstrating hygroscopic behavior)

- Industrial moisture detection

- Educational demonstrations of reversible chemical changes

- **Reusability**: Can be dried and reused multiple times, though sensitivity may degrade over time

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### ⚠️ Safety Notes

- **Chemical Sensitivity**: Contains cobalt compounds, which may be harmful with prolonged exposure

- **Handling**: Use gloves and avoid inhalation or ingestion

- **Storage**: Keep sealed in a dry environment to preserve effectiveness

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Let me know if you’d like a visual diagram of how it works or ideas for classroom experiments using it!