| CAS No.: | 7775-14-6 |
|---|---|
| Other Names: | disodium dithionite |
| MF: | Na2O4S2 |
| EINECS No.: | 231-890-0 |
| Place of Origin: | China (Mainland) |
| Grade Standard: | Industrial Grade |
| Purity: | 85%,88%,90% |
| Appearance: | white crystalloid powder |
| Application: | textile industry for vat dyeing,bleaching paper pulps ,etc |
| Brand Name: | EG |
| Model Number: |
Quick Details
Specifications
Product Name: Sodium Hydrosulfite
Molecular Formula: Na2S2O4
Molecular Weight: 174.10
CAS: 7775-14-6
HS: 2831.1010,
Hazard Calss: Class 4.2, 4.3 Spontaneously combustible substance
Property: Sodium hydrosulfite is a white crystalline powder with weak sulfurous odor. It is readily soluble in water, insoluble in alcohol.
Application: Widely used in printing and dyeing industry, can be used as a reducing agent for vat dyes, disperse dyes can be used to restore the clean, reactive dyes can be used for stripping color, silk, hair bleach, food bleaching agent, the depositary agent, antioxidant agents, preservation agents, bleaching of paper, industrial bleaching agent, processing, reducing agent, sulfonating agent.
Packing: Polyethylene film bag lined with double layer, 50kg/iron drum, 20MT/1x20' FCL.
Molecular Weight: 174.10
CAS: 7775-14-6
HS: 2831.1010,
Hazard Calss: Class 4.2, 4.3 Spontaneously combustible substance
Property: Sodium hydrosulfite is a white crystalline powder with weak sulfurous odor. It is readily soluble in water, insoluble in alcohol.
Application: Widely used in printing and dyeing industry, can be used as a reducing agent for vat dyes, disperse dyes can be used to restore the clean, reactive dyes can be used for stripping color, silk, hair bleach, food bleaching agent, the depositary agent, antioxidant agents, preservation agents, bleaching of paper, industrial bleaching agent, processing, reducing agent, sulfonating agent.
Packing: Polyethylene film bag lined with double layer, 50kg/iron drum, 20MT/1x20' FCL.
| Item | 90% | 88% | 85% |
| Na2S2 O4 | ≥ 90% | ≥ 88% | ≥ 85% |
| (Fe) | ≤ 20ppm | ≤ 20ppm | ≤ 20ppm |
| (Zn) | ≤ 1ppm | ≤ 1ppm | ≤ 1ppm |
| Clarity | Clarify | Clarify | Clarify |
| EDTA | - | - | - |
| (As) | - | - | - |
| Other heavy metals(pb) | - | - | - |
| HCHO | - | - | - |
| water insoluble matter | ≤ 0.05% | ≤ 0.05% | ≤ 0.05% |