The Thermo Scientific Nalgene Wide Mouth Round Bottles are general use lab storage bottles are available in three different materials:
High Density Polyethylene (HDPE) translucent bottles are for general use. They are usable with most corrosive chemicals and have lower permeability and greater rigidity than LDPE.
Low Density Polyethylene (LDPE) Bottles have greater flexibility, visibility and impact resistance than HDPE bottles. They are the best choice for trace metal analysis and for freezer storage to -100°C.
Polypropylene Bottles are chemical resistant and autoclavable to +121°C . They offer excellent chemical resistance to most acids, bases and alcohols, and are more translucent than either HDPE or LDPE bottles.