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Sodium Hydrosulfite

离岸价格

获取最新报价

20 Metric Ton Minimum Order

国家:

China

型号:

离岸价格:

（面議）获取最新报价

位置:

china

最小订单价格:

最小订单:

20 Metric Ton

包装细节:

drum

交货时间:

20days

供应能力:

付款方式:

T/T, L/C

產品組 :

CHEMIAL

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dalan richcheminterantional company

China

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联系人 laura

mingze treet, Dalian, Liaoning

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产品规格

Grade Standard: Industrial Grade
Purity (%): 88%
Appearance: White crystalline powder with weak sulforous odor
Application: Sodium hydrosulfite is used as a reducing agent in dying application. It undergoes reduction reactio

详情

Appearance: white crystalline powder

Purity:*8% min

Na2CO3:1%*3%

Fe(ppm)*8max

Pb:0.***5%max

As:0.***1%max

Smell: a little SO2 of smell

Sodium Hydrosulfite is a white powder. Commercial sodium hydrosulfite contains *5% - *0% sodium dithionite w/w. It is readily soluble in water and shows powerful reducing action in aqueous solutions.Sodium hydrosulfite is used as a reducing agent in dying application. It undergoes reduction reaction with water-insoluble vat dye and sulfur dye to form water-soluble alkali metal salt of the dye (leuco form ) so that they have affinity for the textile fiber. The reductive decomposition of the excessive dye by sodium hydrosulfite improve the colour fastness. Sodium hydrosulfite's reduction reaction removes residual oxide and wrong pigments. Sodium hydrosulfite is a reductive bleaching agent. It reduces carbonyl and alcohol groups, which function as colorants of the substances. It is used in bleaching mechanical paper pulp, cotton, wool and kaolin clay. Additional applications include water treatment, leather processing, food processing, gas purification, cleaning, printing and stripping. In addition to a reducing agent function, sodium hydrosulfite functions as a sulfonating agent and sodium ion source in a variety of chemical reactions.

国家:	China
型号:	-
离岸价格:	（面議）获取最新报价
位置:	china
最小订单价格:	-
最小订单:	20 Metric Ton
包装细节:	drum
交货时间:	20days
供应能力:	-
付款方式:	T/T, L/C
產品組 :	CHEMIAL