Molecular formula : Na2S2O5
Molecular weight : 190.10
Appearance : white or light yellow crystalline powder , relative density is 1.4 .
Uses: It can be used as the material of medicine, or used as curing agent of rubber; It also can be used as dechlorinating agent and scouring agent of textile; It also can be used in the process of leather Moreover, it can be used as the material of fine chemicals, or used as developer; In food industry, It can be used as bleaching agent, loosening agent, antisepsis bactericide and antioxygen antistaling agent.
Quality standard : GB1893-1998
|Item ||Company standard|
|Assay ( as Na2S2O5 ) % ≥||96.5|
|Fe % ≤||0.005|
|Clarity ||clear |
|Heavy metal (Pb) % ≤||0.001 |
|As % ≤||0.0002 |
Packing : External packing is PP woven bag, Internal packing is PE bag, the thickness ≥0.05mm. There are food additives Sodium metabisulfite printed on the external packing, with the sign of Avoid moisture and heat'. The trademark is Xianwang .
Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid raining.
Netwt. : 25kg, 50kg, 1000kg/ bag.
Company : Kemsky (HK) Co., Ltd.
Address : Qilishan community, Yueyang, Hunan, China
Contact : 13975090964 (Ms. Xie)