Cemegau amgylcheddol
Magnesiwm Clorid
Enwau eraill: Magnesiwm Clorid Hexahydrate, darnau heli, powdr heli, fflochiau heli. Fformiwla gemegol: MgCL₂;MgCl2.6 H2OMolecular pwysau: 95.21CAS Rhif 7786-30-3EINECS: 232-094-6Pwynt toddi: 714 ℃ berwi pwynt: 1412 ℃ Hydoddedd: hydawdd mewn dŵr ac alcohol Dwysedd: 2.325 kg./m3App
Sodiwm Hydrosulfite
Mae'r tâp rhuban braid yn addurniad braf ar gyfer gwahanol achlysuron, megis priodas, parti pen-blwydd, Nadolig, penblwyddi a mwy, hefyd gallwch ei ddefnyddio i bacio'r anrheg, gan wneud i'ch anrheg edrych yn fwy deniadol a phersonol.Deunydd: polyester + spandex Lled: 4cm Techneg: webin Jacquard ...
Clorid Bariwm
Pwynt toddi: 963 ° C (goleu.)Pwynt berwi: 1560 ° CDensity: 3.856 g/mL ar 25 ° C (goleu.) Tymheredd storio.: 2-8°CS Hydoddedd: H2O: hydawddFfurf : gleiniau Lliw : Disgyrchiant Penodol Gwyn :3.9PH :5-8 (50g/l, H2O, 20℃) Hydoddedd Dŵr: Hydawdd mewn dŵr a methanol.Anhydawdd mewn asidau, ethanol, aseton ac ethyl ...
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