Contact: Mr. Yu

• Properties:

Chemical Name: Rongalite

Molecular Formula:NaHSO ₂ · CH ₂ O · 2H ₂ O

Molecular Weight:154.12

Specific Gravity:1.8

Melting Point:64°C

Heat of Fusion:54.84KJ/mol(13.2Kcal/mol)

Hygroscopic Point: Relative Humidity 60%

Stable Pour-Point: 50 °Cmax

Solubility:

45%(20 °C: 1.2dose 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 away 1 dose of Rongalite at 70 °C.

• Standard: Up to the Standard HG2281-92

Specifications:

• Applications: 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.

• Packing: In plastic bag-lined iron drum sealed with airtight lid, net weight 50KG each.

• Cautions for transportation and storage: Should be stored in a cool, dark and dry place, protected, from moisture, avoided exposure to direct sunshine, don't to let it be rained on. Be sure nor to store it together with oxidant and acid, no presence of acidic vapour in storeroom, is allowed. Storage life is one year.