Fractures - Broken Bones. 1  Simple Fractures: A fractured bone generally takes at least six weeks to heal. 2  Fractured Finger or Toe: These fractures typically heal in three to five weeks. 3  Fractured Clavicle (collarbone): This may take five to ten weeks to heal.
The hazard: Glutaraldehyde is a toxic chemical that is used for cold sterilization of medical and dental equipment. It is in Cidex and other products.Glutaraldehyde can cause severe irritation of the eyes, nose, throat, lungs, nausea, headaches, drowsiness, and dizziness. Avoid using the product (substitution): Where possible, the use of glutaraldehyde should be avoided by using less toxic chemicals or other processes for sterilization. 2  Use equipment to avoid exposure (engineering controls): Glutaraldehyde should be used in a contained process along with local exhaust ventilation.
1 Glutaraldehyde is probably the most commonly used EM fixative and is normally supplied at concentrations of 25 or 50% and used at concentrations of 0.5-2%. 2  The molecular weight of glutaraldehyde is 100.12 g/mol and at a 1% concentration will have a molarity of 0.1 mols/litre. Formaldehyde is a common fixative for light microscopy and is often used on its own. 2  However, for EM it often doesn't provide enough stability for all of the sample preparation steps and ultrastructure can be poor.