Sodium Hydrosulfite

FOB Price: US $930.0020 - 20 metric ton

group name: Sodium hydrosulfite

Min Order: 20 metric ton

model: Sodium Hydrosulfite 85%,88%,90%

Nearest port for product export: Shanghai Qingdao Lianyun Changsha Yueyang Yichang, Huangpu Wuhan Shenzhen Tianjin Ningbo

Delivery clauses under the trade mode: FOB, CFR, CIF, EXW

Acceptable payment methods: T/T, L/C, D/P D/A

update time: Mon, 21 Mar 2022 10:03:33 GMT

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Paramtents

Mol wt: 174.108
Place of Origin: Hunan, China (Mainland)
HS CODE: 28311010 UN1384
Brand name Rongda

Packging & Delivery

Min Order20 metric ton

Briefing

Sodium Hydrosulfite:
1. Textile printing
2. Textile materials bleaching
3. Pulp and paper brightening
4. Pulp deinki

Detailed

Sodium Hydrosulfite

Molecular formula: Na2S2O4

Scent: No scent or slight scent of SO2

Quality standard:

Technical grade: HG/T 2074-1991 JIS K 1476-1995

Food grade: GB2682-199

Warranty period: 12 months after production date

Applications:

1. Vat dyeing, printing and stripping, reduction cleaning
2. Textile materials(silk, wool, nylon and other fibers)bleaching
3. Pulp and paper brightening
4. Pulp deinking
5. Kaolin clay bleaching
6. Foodstuffs ( sugar, honey, gelatin, etc)bleaching
7. chemical synthesizing

Extinguishing Method:

Isolate the combusted are, keep far away from flames, use sufficient drown the product completely (Other extinguishing media may not stop decomposition thoroughly). Make sure the rinsing water does not pollute water source farm. Inspect the balance of the packing drum and move those hot drums to a ventilated place to lower their temperature.

Extinguisher: Large amount of water

Technical specification:

Specification	90%	88%	85%	Food grade
Na2S2O4	≥90%	≥88%	≥85%	≥85%
Fe	≤20ppm	≤20ppm	≤20ppm	≤20ppm
Zn	≤1ppm	≤1 ppm	≤1ppm	≤1ppm
Solution Appearance	Clear	Clear	Clear	Clear
Other heavy metal (as pb)	—	—	—	—
HCHO	—	—	—	≤0. 05%
Water insoluble matter	≤0.05%	≤0.05%	≤0.05%	—
Reserve period (months)	12	12	12	12

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