What the layer of the atmosphere into which the highest volcanic ash was blasted from the krakatau eruption?

The highest volcanic ash from the Krakatau eruption in 1883 was blasted into the stratosphere. This layer of the atmosphere extends from about 10 to 50 kilometers (6 to 31 miles) above the Earth's surface and is characterized by a temperature increase with altitude. The eruption sent ash and gas high into the stratosphere, leading to significant global climate effects, including temperature drops and vivid sunsets.