- Explosive[10]
- Food Additives[1]
- Alkali[3]
- Carbonate[10]
- Chlorate[10]
- Other Inorganic Salts[3]
- Silicate[9]
- Sulphate[10]
- Other Inorganic Chemicals[10]
Sodium Metabisulphite
Sodium Metabisulphite 98%Min (SO2:65%Min) Food
CAS: 7681-57-4 / Na2S2O5
Used in Mining, Food, Leather
Origin: Hunan, Tianji
Sodium Metabisulphite 98.0%Min (SO2:65%Min) (Changsha Yonta) | |
- Product Identification | |
CAS No. | 7681-57-4 |
H.S. Code | 2832.100000 |
Formula | Na2S2O5 |
Molecular Weight. | 190.12 |
Toxicity | LD50:178 mg/kg (rabbit vein) |
Synonyms | sodium pyrosulfite, sodium metabisulfite |
- Physical And Chemical Properties | |
Physical State (Appearance) | White or light yellow powder, relative condense 1.4 in moist. It dissolves in water and glycerine and little in ethanol. Decomposed in humid, oxygenized into sodium sulfate by exposed in air, sulpher dioxide will be released when it contacts with strong acid and then created the relative salt, resolved by heated at 150 oC. |
Melting Point | / |
Boiling Point | / |
Specific Gravity | 1.48 |
Solubility in water | 54 g/100ml (20 oC) |
PH | 4-4.6 |
Flash Point | / |
Stability | Stable under ordinary conditions |
- Applications | |
Mining Industry : N/A Medicine industry: Used for manufacturing trichloromethane, sulphetrone and benzaldohyde. | |
- Specification | |
Quality Standard | GB1893-1998 |
Appearance | White crystal powder |
AssayY(Na2S2O5) | 95% Min ( 98%MIN) |
SO2 | 65% Min |
Water Insoluble | 0.05% Max |
Iron (Fe) | 50PPM Max |
Heavy Metal (Pb) | 20PPM |
Chloride (Cl) | - / 3PPM |
Arsenic (As) | 2PPM |
PH Value | 4.0 – 4.6 |
- Transportation | |
Storage | Cannot be stored and transported together with gasoline, acids or oxidants and other inflammable substances. |
Packing | In 25kgs / 1000Kgs Net P.P. Woven Bags With PE Liner. |
Hazard Class | N/A |
UN No. | N/A |
- Other Trade Information | |
Min. Order Quantity : | 1FCL (25Mts) |
Supply Capacity | 36,000mts /Year |
Loading Capacity | 27Mts/1080bags (1x20'FCL) |
Port of Loading | Guangzhou,China |
Fresh Stocks | Yes |
Ref. Price | USD310.--USD325.-/MT FOB Guangzhou / Tianjin, China |
Shipment Time | Within 2-3 weeks upon receipt of advance payment or L/C . |
Payment Time | T/T In Advance, Sight L/C, L/C 60 days after B/L date. |
Origin | Hunan, Tianjin |
Sample Availability | Yes |
Main Export Markets | South Africa, Thailand, Lebanon, Iran, Spain |