Industrial Grade Sodium Sulfite for Effective Bleaching Solutions CAS 7757-83-7

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2so3
• Model NO.: RD-Sodium sulfite
• EINECS: 231-821-4
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: ≥99%
• Type: Sodium Sulfate
• Appearance: Powder
• Grade Standard: Food Grade
• Other Name: Sodium Sulfite
• Appearance (25ºC): Powder
• Storage: Cool Dry Place
• Packaging: 200kg Plastic Drum or 1000kg IBC Tank
• Transport Package: Plastic Drum or IBC
• Specification: 200KG plastic drum or 1000KG IBC tank
• Trademark: RANDA
• Origin: Hebei
• Production Capacity: 8000 T/Year

Product Description

 

Product Description

 

Anhydrous sodium sulfite, white crystal or powder; odorless; easily soluble in water, very slightly soluble in ethanol, almost insoluble in ether. It is soluble in water (12.54g/100ml water at 0°C; 28.3g/100ml water at 80°C), the highest solubility is about 28% at 33.4°C, the aqueous solution is alkaline, and the pH is about 9-9.5. 

 

Product Specification

 

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
Heavy metals ( As Pb )	-	0.0005% max
Iron (Fe)	0.005% max	0.003% max
Water insoluble	0.05% max	0.01% max

APPLICATIONS:  

(1) Industry Grade : Used in Dyeing and printing Industry , as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.

(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as anti-fermentative. In starch and sweeteners production as bacteriostatic.

(3) Photo Grade: In the photographic industry as component of developer bath.

Packaging & Shipping

 

Package:

• Delivery Time: Around 3-5 workdays after your payment.
• Package: In fiber-drums with two-plastic bags inside.
• Net Weight: 25kgs/Drum / Gross Weight: 28kgs/Drum
• Drum Size & Volume: I.D.42cm × H52cm, 0.08 m³/ Drum
• Storage: Stored in dry and cool place, keep away from strong light and heat.
• Shelf Life: Two years when properly stored.

Shipping:

• DHL Express, FEDEX and EMS for quantity less than 50KG, usually called as DDU service;
• Sea shipping for quantity over 500KG; and air shipping is available for 50KG above;
• For high value products, please select air shipping and DHL express for safe;

 

Company Profile

Shijiazhuang Randa Technology Co., Ltd. is a manufacturer and exporter mainly engaged in the production of chemical products such as washing raw materials. It is committed to providing customers with cost-effective chemical raw materials. The factory environment is elegant, well-equipped, and sufficient resources. The company has advanced technology and professional technicians. The company's sales have grown steadily since its establishment. The company adheres to the business philosophy of "quality, price, customer first", which is effectively reflected in the operation, and is committed to providing customers with sufficient supply, stable and reliable quality.

Our warehouse adopts refined area division, and in addition, we have special storage areas such as dangerous goods storage area,temperature control area, and heavy cargo area. The overall storage capacity is sufficient to meet the large-scale inventory demand.

Our core area for technology research and quality control has modern equipment and advanced testing technology, ensuring that we can continuously innovate while strictly controlling product quality.

FAQ

1. Who are we?
Our headquarters is located in Hebei, China.
2. How do we ensure quality?
Always pre-production samples before mass production; Always final inspection before shipment;
3. What can you buy from us?
Solar energy systems, artificial grass, chemical raw materials, metal materials, construction machinery and parts
4. Why should you buy from us instead of other suppliers?
1) Green and healthy concept, smart and comfortable brand
2) Authoritative technical team, design ideal system
3) Tailor-made solutions, energy-saving effect
4) Advanced equipment production, safety and quality assurance
5) Flexible marketing model, mutual benefit
5: Can you give me samples?
We provide samples for free and we can afford the postage.
 

Additional Information:

• Packing: Custom packing is available.
• Reply Time: Sales managers respond within 24 hours.
• Sample Requests: Free samples upon agreed pricing, with shipping costs upfront.
• Loading Port: Primarily TIANJIN port.
• Transport Modes: Sea and train are primarily used.
• Bulk Orders: Discounts are available for large quantities.