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Sodium Hydrosulfite

سعر فوب

أحصل على آخر سعر

20 Metric Ton Minimum Order

بلد:

China

نموذج رقم:

سعر فوب:

(قابل للتفاوض) أحصل على آخر سعر

الموقع:

china

سعر الحد الأدنى للطلب:

الحد الأدني للطلب:

20 Metric Ton

تفاصيل التغليف:

drum

موعد التسليم:

20days

القدرة على التوريد:

نوع الدفع:

T/T, L/C

مجموعة المنتج :

CHEMIAL

الاتصال الآن

dalan richcheminterantional company

China

عضو مجاني

الشخص الذي يمكن الاتصال به laura

mingze treet, Dalian, Liaoning

الاتصال الآن

مواصفات المنتج

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

الوصف

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.

بلد:	China
نموذج رقم:	-
سعر فوب:	(قابل للتفاوض) أحصل على آخر سعر
الموقع:	china
سعر الحد الأدنى للطلب:	-
الحد الأدني للطلب:	20 Metric Ton
تفاصيل التغليف:	drum
موعد التسليم:	20days
القدرة على التوريد:	-
نوع الدفع:	T/T, L/C
مجموعة المنتج :	CHEMIAL