96%/97%/98% Sodium sulfite
anhydrous Na2SO3
Product Description
Dissolved in water (12.54g/100ml water at 0°C; 28.3g/100ml water at 80°C), the solubility is about 28% at 33.4°C, the aqueous solution is alkaline, and the pH is about 9~9.5. Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. It is easily oxidized to sodium sulfate in the air and decomposed into sodium sulfide in case of high temperature. In order to strengthen the reducing agent, it reacts with sulfur dioxide to form sodium hydrogen sulfite, and reacts with a strong acid to form a corresponding salt.
Product Show
Properties: This product is white crystal or powder; odorless. This product is soluble in water, very slightly soluble in ethanol, and almost insoluble in ether.
Store in a cool, dry and ventilated warehouse. Keep away from the heat of the fire. The package is sealed and must not be in contact with air. Do not store and transport with oxidants, strong acids and hazardous materials. This product is deliquescent and should not be stored for a long time. Protect from rain and sun exposure when transporting.
Usage
Application fields
Used as a catalyst for the urea-formaldehyde resin synthesis addition stage reaction. As a reducing agent, it protects oxygen sensitive materials. Also used as an antioxidant, antioxidant, neutralizer.
1. Anhydrous sodium sulfite is used for film development
2. The chemical industry is used as a reducing agent and a sulfonating agent;
3. Dechlorination agents and bleaching agents in the printing and dyeing industry;
4. Stabilizers for chemical fibers, etc.
Parameter
Item | Quality Index | |
Industry Grade | Food Grade | |
Purity ( As Na2SO3) | 96.0% min | 98.0% min |
Sodium sulphate ( SO4) | 2.0% max | 1.2% max |
Chlorides ( As NaCL) | 0.5% max | 0.08% max |
Arsenic ( As ) | - | 0.0002% max |
Heavy metals ( As Pb ) | - | 0.0005% max |
Iron (Fe) | 0.005% max | 0.003% max |
Water insoluble | 0.05% max | 0.01% max |
Packing & Delivery
Powder packed in 25kg P.P woven bags with inner PE bag.
Storied indoors in a dry, ventilated, cool place, and do not get wet.
Shelf life: 2 years
Factory Show
Company profile
Linyi katia Group Work Win Co.,Ltd., located in weifang, where the headquarters of international kite federation is located, has been providing good products and technical support and sound after-sales service for the company's development and expansion for one year
Our certificate
Customer visiting
FAQ
Q1: Are you a factory or trading company ?
We are manufacture factory and more than 20 years experiecne in producttion of CMC.
Q2: Where is your factory located, how can I visit there ?
Our factory is located in Luoyang City, Henan province, China.
Q3:What is your annual production?
More than 8,000 tons production per one year.
Q4: Can you provide free samples?
Free samples can be offered for your testing
Q5: Where is your loading port ?
Our loading port is usually Qingdao Port, which is the fourth biggest port in China.
Q6: How long is your delivery time ?
It will take about 15-20 days, and also depends on quantity.
