- Dyestuffs[6]
- Chloride[1]
- Inorganic Acids[2]
- Organic Intermediate[1]
- Sulphate[3]
- Contact Person : Ms. Lee Anna
- Company Name : Ningbo Mingzhou Chemical Dyestuff Co., Ltd.
- Tel : 86-574-55336086
- Fax : 86-574-88113815
- Address : Zhejiang,NINGBO,QINGSHUIPU VILLAGE,JIAOCHUAN STREET,ZHENHAI DISTRICT
- Country/Region : China
- Zip : 315192
sodium hydrosulfite
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Sodium Hydrosulfite
Package: 25kgs iron drum as per your request 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; its the most fitable 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.
Product Specification :
. | Technical Grade | Food Grade | ||
90%Grade | 88%Grade | 85%Grade | ||
Na2S2O4 | 90% | 88% | 85% | 85% |
IronFe | 20ppm | 20ppm | 20ppm | 20ppm |
zincZn | 1ppm | 1ppm | 1ppm | 1ppm |
solution appearance | clear | clear | clear | clear |
EDTA | / | / | / | qualified |
ArsenicAs | / | / | / | 1ppm |
other heavy metalas Pb | / | / | / | 1ppm |
Formate | / | / | / | 0.05% |
water insolubles | 0.05% | 0.05% | 0.05% | / |
shelf lifemonths | 12 | 12 | 12 | 12 |
sodium hydrosulfite
