'at normal temperature' is correct, and it can be used in written English.
For example, "Leave the material exposed to the air at normal temperature for two days."
Only 41percentt died, compared with 55percentt of those kept at normal temperature.
At normal temperature and pressure isobutylene is a gas and isoprene is a volatile liquid.
In one clinical trial that led to the recommendation, 55percentt of the chilled patients were able to live independently and work part time six months later, compared with 39percentt of those kept at normal temperature.
It is inert to oxygen at normal temperature but combines with it readily at red heat, to give the trioxides, and is attacked by fluorine at room temperature, to give the hexafluorides.
At normal temperature and pressure, pure hydrogen chloride is a gas, and, in the absence of water or some other ionizing solvent, hydrogen chloride exists in molecular, rather than ionic, form.
It takes place at normal temperature.
The measurements were taken at normal temperature and pressure.
Reactions of peroxydisulfate were slow at normal temperature.
All the flow rates were maintained at normal temperature and pressure.
However, since the reactions of peroxydisulfate are generally slow at normal temperature.
Instead of cooling it to slow its metabolism we keep it functioning at normal temperature and with oxygen and nutrition".
