China Chemical High Purity Na2s2o4 Sodium Hydrosulfite 90% Price

• CAS No.: CAS 7775-14-6
• Formula: Na2s2o4
• EINECS: 231-890-0
• Certification: CCIC, CIQ, ISO
• Purity: 80%~90%
• Type: Sodium Hydrosulfite
• Model NO.: zhd0001-43
• Appearance: White Crystal Powder
• Grade Standard: Industrial or Food Grade
• Un No: 1384
• Density: 2.189 G/Cm³
• Other Names: Sodium Dithionite
• Applications: Textile/Metallurgica/Medicine-Making/Papermaking
• Transport Package: Iron Drum
• Specification: 50kgs/Drum
• Trademark: ZHD or Customable
• Origin: China
• HS Code: 2831101000
• Production Capacity: 15000ton/Per Year

Product Description

Product Parameters

CAS NO.	7775-14-6/ 7631-94-9	HS.CODE	28311010
EINECS NO.	231-890-0	HAZARD CLASS	4.2
UN NO.	1384	Storage Condition	Store at +5°C to +30°C
APPEARANCE	White to Gray-White crystalline powder
Odor	Odorless or a slight odor of SO2 gas
Solubility	Easily Soluble in Water, Insoluble in Ethanol

 

Grade of Quality	Superior G.	First G.	Qualified G.
Percentage of Sodium Hydrosulfite(Na2S2O4 ) Content	≥90%	≥88%	≥85%
Water Insoluble	≤0.1%	≤0.1%	≤0.3%
Sodium Thiosulfate(Na2S2O3)	≤1.0%	≤1.3%	≤1.5%
Sodium Metabisulfite(Na2S2O5)	5-7%	5-7%	5-7%
Sodium Bisulfite(NaHSO3)	≤0.5%	≤0.5%	≤0.5%
Sodium Carbonate(Na2CO3)	0.6-2%	0.6-2%	0.6-2%
Sodium Formate(HCOONa)	≤0.5%	≤0.5%	≤0.8%
Zn	≤0.0001%	≤0.0001%	≤0.0001%
Pb	≤0.0001%	≤0.0001%	≤0.0001%
Fe	≤0.005%	≤0.005%	≤0.005%

Packaging

Outer Package: Iron Drum

Inner Package: 2-layer PE bag

Net Weight Per Drum: 50kgs, 22.5tons/20'FCL without pallets

Port: Qingdao, Shanghai, Nansha
 

Applications

1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. It is also used in bleaching paper pulps , especially mechanical pulps, it's the most fittable bleaching agent in pulps. 
3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 
4. It is used in mineral, the compound of thiourea and other sulphides. 
5. It is used as reducing agent in chemical industry.

Company Profile

  

Our Advantages

FAQ

1) What about product quality assurance policy?
     We accept pre-shipment test by SGS or any other third party agents.
2) Can we print our logo on the product ?
     Yes, we can do it. Just send us your logo design.
3) Do you accept small orders ?
     Yes, we can do it. Pls contact us for order details.
4) How about the price? Can you make it cheaper ?
    Price is negotiable under different conditions, we are assuring you to get the most competitive price.
5) Do you offer free samples ?
    Yes, we could offer the sample for free charge but do not pay the cost of freight.
6) What are your payment terms ?
     We usually accept T/T, L/C or other terms for negotiating.
7) Can I visit your factory in China ?
     Yes, you are welcomed to visit our factory.
8) How Can I place an order ?
    Kindly pls chat with us directly, or you could just send us inquiry, we will arrange your order accordingly after all details is  finalized.