High Quality Sodium Hydrosulfite/Factory Price Sodium Hydrosulfite/Sodium Hydrosulphite
Product description
High Quality Sodium Hydrosulfite/Factory Price Sodium Hydrosulfite/Sodium Hydrosulphite
Product Name: Sodium Hydrosulfite
Other Name: Sodium Hydrosulfite
Appearance: White Free-flow Crystal Powder
CAS No.: 7775-14-6
EINECS No.: 231-890-0
Property: Clear monoclinic crystal or white crystalline powder; Sulfa dioxide odor; Specific density: 1.48; Dissociate upon heating; Water soluble; Acidic aqueous solution; Slightly soluble in alcohol; Readily oxidized into sodium sulfate in air; Strongly reductive; Form adduct with formaldehyde; Storage: Tightly sealed and avoid light.
Sodium Hydrosulfite Application:
1.Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fittable bleaching agent in pulps.
3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. It is used in mineral, the compound of thiourea and other sulphides.
5. It is used as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
Sodium Hydrosulfite Specifications:
Item | 90% | 88% | 85% | Food grade |
Na2S2O4%≥ | 90 | 88 | 85 | 85 |
Fe %≤ | 20 ppm | 20 ppm | 20 ppm | 20 ppm |
Zn %≤ | 1 ppm | 1 ppm | 1 ppm | 1 ppm |
Clarity | Clarify | Clarify | Clarify | Clarify |
EDTA | - | - | - | Qualified |
AS≤ | - | - | - | 1ppm |
Other heavy metals(Pb) ≤ | - | - | - | 1ppm |
HCHO≤ | - | - | - | 0.05 |
Water insoluble matte r% ≤ | 0.05 | 0.05 | 0.05 | - |
Packaging: Drum sealed packaging, polyethylene film bag lined with double
N.W:15KG/20KG/25KG/50KG/100KG/200KG
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