Original sentence: At atmospheric pressure it has no melting point as its triple point is at 10.8±0.2 MPa and 4300±300 K, so it sublimates at about 3900 K..
Edited sentence: At atmospheric pressure it has no melting point as its triple point is at 10.8 ± 0.2 MPa and 4600 ± 300 K, so it sublimates at about 3900 K..