Porcelain Crucibles Unglazed

The main composition :Alumina (45-55%),Silicon.

high heat resistant is around 1200 C degree.
2.It's suitable for K2S2O7 and other acid fused samples.
usual,it could not be used for NaoH,Na2O2,Na2CO3 etc as the flux as not to rusty the crucible.
As well,it could not be in touch with the HF acid.
4.Porcelian crucible could generally use the boiling dilute HCL to wash.
to the kinds could divided into:Porcelain Crucible,Medium wall with lid, Glazed;High Wall with lid,Glazed;
Porcelain Crucible,Low wall with lids,Glazed;Unglazed;Crucibles with tight closing lid,glazed;Porcelain Crucible,
For measuring Volatile Content,with Lid Glazed;Stoma CrucibleDouble Deck Crucible and etcs.