Rongalite c (Sodium Formaldehyde Sulphoxylate) Cas No.149 44 0

Product Overview

Description

Rongalite lump,Rongalite powder, Rongalite granules are of a sort but in different forms,their chemical composition is all the same. Three types of Rongalite product are supplied to meet customer’s demands in application.

Properties:
Chemical Name : Sodium Formaldehyde Sulfoxylate
Commercial Name : Rongalite
Molecular Formula : NaHSO₂·CH₂O·2H₂O
Molecular Weight : 154.12
Specific Gravity :1.8
Melting Point : 64°C
Heat of Fusion :54.84 KJ/mol( 13.2Kcal/mol)
Hygroscopic Point : Relative Humidity 60%
Stable Pour-Point :50°C max

Solubility:
45%(20 °C):1.2 dose of water is necessary for dissolving away 1 dose of Rongalite at 20°C. 50%(70 °C):1 dose of water is necessary for dissolving avay 1 dose of Rongalite at 70°C.

Physical Properties:
To be nominated for Rongalite is for the reason that it serves the color-discharging functionto fabrics as well as its appearance. Under different cooling conditions, it solidfies out into white lumps, powder, or granules.

Chemical Properties:
Presenting a powerful reduction behaviour, it acts as a salt of alkaline protection.
a. Easy to deliquescent, emit heat, begin to decompose at 80°C, and sulfurated hydrogen H₂S being release:
6NaHSO₂·CH₂O+3H₂O — →4NaHSO₃+2HCOONa+2H₂S+HCOOH+3CH₃OH
b.Decompose completely when the temperature rises to 110°C, the intramolecular formaldehyde are splitted out, and then nascent hydrogen which is possessed of the strongest reducing power are produced :
NaHSO₂·CH₂O —→ NaHSO₂+ CH₂O
NaHSO₂ + H₂O —→ NaHSO₂+ 2[H]
c.Under the influence of acidity, decompose at PH >3, emit H2S, so that it sould be present in alkline medium PH >8.
d.Decompose on contacting oxidant, take I₂ for example:

NaHSO₂·CH₂O+2H₂O+2I₂ —→ NaHSO₄+4HI+CH₂O


2. Standard: up to the Standard HG 228I-1992
Specifications:

Name
Content of NaHSO2·CH2O % ≥	98.0
State of solubleness	Water solution clear or microturbid
Sulphide	No presence of black color is allowed
Smell	No smell or a little smell of leek

3. Packing:
Iron drums with polyethylene liner, Net weight: 50kg /Compound plastic woven bag with polyethylene liner,net weight 25kg
4. Purpose:
It is mainly used as a discharging agent, color-discharging agent, reductant in printing and dyeing industry, as an activating agent for production styrene-butadise rubber and synthetic resin, also be used to decolourize and bleach some organic matters, for example: as a bleaching agent in synthetic rubber, sugar-making, and food industries. It may be substituted for the sodium hydrosulfite in some special conditions.

5. Attention:
Should be stored in a dry, cool and dark place, protected, from moisture, avoided exposure to direct sunshine, don’t to let it be rained on. Be sure not to store it together with oxidant and acid, no presence of acidic vapour in storeroom is allowed. Storage life is one year.

 

(Anqing haida chemical industry co., LTD., founded in 2010, is located in the southwest of anhui province, north of Yangtze river, anhui river into the river. Anqing, known as the Yangtze river the throat, with jiang is the first state \\"reputation. Is located in anqing dream weavers.

Haida chemical industry is the production, marketing in an intensive enterprises, the main products are divided into two broad categories: white block, rongalite annual output 6000 tons, products are mainly used in dyeing and printing industry agent, styrene-butadiene rubber and synthetic resin as activator. With the serious situation of environmental protection at home and abroad, the company has developed some diversified products, sulfate, polyaluminium chloride, polyacrylamide, food grade sodium hexametaphosphate and other products. Products are widely used in electric power, steel, water companies at home and abroad, the paper mill, coal washing, textile printing and dyeing, food, chemical industry and town, and many other fields of water treatment industry.

Enterprise by the good faith as this, all for the user, your request is our goal, your satisfaction is our wish. Welcome the domestic and foreign customers letter calls business negotiations!