Rongalite lump,Rongalite powder, Rongalite granules are of a kind but in various varieties,their chemical composition is all the same. 3 kinds of Rongalite merchandise are provided to meet customer’s demands in software.
1.Homes:
Chemical Identify : EPT Formaldehyde Sulfoxylate
Business Identify : RongaEPT C
Molecular Formulation : NaHSO2 middotCH2O middot2H2O
Molecular WeigEPT : 154.twelve
Particular Gravity :one.8
Melting Position : sixty four ordmC
Warmth of Fusion :fifty four.84 KJ/mol( 13.2Kcal/mol)
Hygroscopic Stage : Relative Humidity sixty%
Stable Pour-Level :fifty ordmC max
45%(twenty ordmC):1.two dose of drinking water is required for dissolving absent one dose of Rongalite at 20 ordmC. 50%(70 ordmC):one dose of h2o is required for dissolving avay 1 dose of Rongalite at 70 ordmC.
Physical Homes:
To be nominated for Rongalite is for the cause that it serves the color-discharging functionto materials as well as its look. UnEPTdifferent cooling circumstances, it solidfies out into white lumps, powder, or granules.
Chemical Homes:
Presenting a EPTful reduction conduct, it functions as a salt of alkaline safety.
a. Straightforward to deliquescent, emit heat, begin to decompose at 80 ordmC, and sulfurated hydrogen HtwoS currently being launch:
6NaHSO2 middotCH2O+3H2O – #85944NaHSO3+2HCOONa+2HtwoS+HCOOH+3CH3OH
b.Decompose completely when the temperature rises to a hundred and ten ordmC, the intramolecular formaldehyde are splitted out, and then nascent hydrogen which is possessed of the strongest lowering EPT are developed :
NaHSO2 middotCHtwoO – #8594 NaHSO2+ CH2O
NaHSO2 + HtwoO – #8594 NaHSOtwo+ two[H]
c.UnEPTthe impact of acidity, decompose at PH gt3, emit H2S, so that it sould be present in alkline medium PH gt8.
d.Decompose on getting in touch with oXiHu (West Lake) Dis.dant, just take Itwo for example:
NaHSO2 middotCH2O+2HtwoO+2I2 – #8594 NaHSOfour+4HI+CH2O
2. StXiHu (West Lake) Dis.Hu (West Lake) Dis.rd: up to the StXiHu (West Lake) Dis.Hu (West Lake) Dis.rd HG 228I-1992
Specifications:
| Name | SPEC |
| Articles of NaHSOtwo middotCHtwoO % ge | ninety eight. |
| State of solubleness | Drinking water answer obvious or microturbid |
| Sulphide | No presence of black coloration is authorized |
| Scent | No smell or a tiny smell of leek |
three.EPT:
In plastic bag Web weight: 25kgs every single.
4. Objective:
It is mainly utilised as a discharging agent, shade-discharging agent, reductant in printing and dyeing market, as an activating agent for manufacturing styrene-butadise rubber and synthetic resin, also be utilized to decolourize and bleach some natural matters, for illustration: as a bleaching agent in artificial rubber, suXiHu (West Lake) Dis.Hu (West Lake) Dis.-creating, and food EPT. It may be substituted for the sodium hydrosulfite in some EPT problems.
five. Consideration:
Must be stored in a dry, amazing and darkish spot, safeguarded, from humidity, averted publicity to immediate sunshine, do not to allow it be rained on. Be certain not to keep it with each other with oXiHu (West Lake) Dis.dant and acid, no existence of acidic vapour in storeroom is permitted. Storage lifestyle is one particular calendar year.
