Na2so3 CAS 7757-83-7 Food Grade Powder Sodium Sulphite Anhydrous

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2so3
• Model NO.: JC-Na2so3 -25051500
• EINECS: 231-821-4
• Certification: ISO
• Purity: 98%
• Type: Sodium Sulfate
• Appearance: Powder
• Grade Standard: Food Grade
• Melting Point: 500 °c
• Density: 2.63
• Storage Conditions: Store at +5°c to +30°c.
• Form: Solid
• Color: White to Slightly Yellow
• pH: 9.0-10.5
• Shipping Fee: Base on Address
• Sample: 500g Free
• Odor: No
• Packaging: Can Be Customized
• Transport Package: 25kg, 50kg, 1000kg
• Specification: Customizabl /PP Bag
• Trademark: N/M
• Origin: China
• HS Code: 2832100000
• Production Capacity: 36000mt Per Month

Product Description

 

Product Description

Sodium sulfite Anhydrous (Na 2SO3) product description

Product Name: Anhydrous Sodium Sulfite

English name: Sodium Sulfite Anhydrous

Chemical formula: Na 2SO 3

Molecular weight: 126.04

CAS number: 7757-83-7

EINECS number: 231-821-4

Appearance: White crystalline powder or granules

Odor: Slightly sulfur-containing

Solubility: soluble in water, insoluble in ethanol

 

Product Parameters

PO NO.	JC-608	PRODUCTION DATE	2024-12-02	EXPIRY DATE	2026-12-01
PACKING	25KG BAG	GRADE	FOOD GRADE	STANDARD	GB 1886.8-2015
TEST ITEMS		TEST STANDARD		TEST RESULT
Na2SO3 (DRY BASIS)		≥96.0%		98.5%
IRON(Fe)		≤0.01%		0.0005%
FREE ALKALI(As Na2CO3 )		≤0.60%		0.14%
HEAVY METAL(As Pb)		≤10 .0mg/kg		<10 .0mg/kg
( As)		≤2.0mg/kg		0.1mg/kg
CLARITY		THROUGH EXPERIMENTS
APPEARANCE		WHITE CRYSTALLINE POWDER
CONCLUSION		QUALIFIED PRODUCTS
INSPECTOR:  CUI TINGTING          CHECKER:YANG AIHUA

 

Certifications

 

Packaging & Shipping

 

1. Packaging: Food grade packaging materials are used, such as food grade polyethylene plastic bags on the inner layer and kraft paper bags or woven bags on the outer layer, sealed packaging, with a common net weight of 25kg per bag or customized packaging specifications according to customer needs. The packaging is clearly labeled with food additive identification and related usage instructions, production date, shelf life, and other information.
2. Storage conditions: It should be stored in a cool, dry, well ventilated, and clean warehouse. It should be strictly separated from toxic, harmful, odorous, and easily contaminated items to prevent cross contamination. The temperature in the warehouse is generally controlled below 25 ºC, the relative humidity is kept below 65%, and direct sunlight and high temperature environments are avoided to prevent product oxidation and moisture absorption deterioration, ensuring stable product quality and maintaining good performance and safety during the shelf life.

 

 

Customer Visit

 

 

Application

 

 

1.Water treatment: As a deoxidizer, it is widely used in boiler water and wastewater treatment.

 

2.Pulp and paper: used for bleaching pulp and reducing bleaching agents.

 

3.Textile industry: as a dyeing assistant and bleaching reducing agent.

 

4.Food industry (such as food grade products): used as antioxidants, preservatives (subject to compliance with food additive regulations).

 

5.Photography industry: used for developing and fixing solutions.

 

6.Chemical synthesis: used as a reducing agent, bleaching agent, intermediate, etc.

 

 

 

Our team

 

 

 

Our Advantages

1. Free samples available before confirming the order to avoid any problems.
2. Goods delivered directly from the factory warehouse after well produced in a high quality and good situation.
3. Prompt shipment,  usually within 10  working days after confirming the order.
4. Third-party testing is acceptable
5. Sample orders are available
6.  Guarantee delivery time
7. Photos of cargo loading can be provided
8.  Assist in transportation with rich resources of freight forwarders
9.  Support multiple payment terms like T/T, 100% L/C at sight.
10.Resource advantage: Geographical advantage with abundant brine resources