Here are some properties of imidacloprid:

1. Physical State: Imidacloprid is a solid at room temperature. It is typically found in the form of a colorless to pale yellow crystalline powder.

2. Solubility: Imidacloprid is moderately soluble in water, with a solubility of approximately 0.61 grams per liter at 20 degrees Celsius. It is also soluble in organic solvents such as acetone, methanol, and ethanol.

3. Melting Point: The melting point of imidacloprid ranges from approximately 144 to 147 degrees Celsius.

4. Chemical Stability: Imidacloprid is relatively stable under normal storage conditions. It does not readily decompose or undergo significant chemical changes. However, it can degrade under the influence of sunlight, particularly when exposed to UV radiation.

5. Pesticidal Strength: Imidacloprid is considered to be a highly effective insecticide with potent insecticidal activity. It has a strong affinity for insect nicotinic acetylcholine receptors, which contributes to its effectiveness against a wide range of insect pests.

6. Persistence: Imidacloprid exhibits a moderate level of persistence in the environment. Its half-life, the time it takes for half of the substance to degrade, can range from a few weeks to several months depending on environmental conditions.

7. Systemic Nature: One of the notable properties of imidacloprid is its systemic action. It can be taken up by plants and translocated in the xylem, allowing it to move to different parts of the plant, including leaves, petals, and stems. This enables the insecticide to target pests that feed on various plant tissues.

8. Toxicity: Imidacloprid is considered to be moderately toxic to mammals and birds. However, it is more toxic to insects due to their specific receptor sensitivity. It is important to follow safety precautions and use appropriate protective measures when handling or applying imidacloprid.