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CAS No 7681-57-4 , Sodium metabisulfite

  • Name: Sodium metabisulfite
  • Synonyms: Natriumbisulfit;Sodium metabisulfite; Campden Tablets;Sodium disulfite; Fertisilo; Sodium pyrosulfite; Natrium pyrosulfit; Natrii disulfis; Disodium disulfite;
  • CAS Registry Number:
  • Transport: UN 2693
  • Melting Point: 150 ºC
  • Density: 1.48
  • Water Solubility: 540 G/L (20 ºC)
  • Safety Statements: R22;R31;R41
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 231-673-0
  • Molecular Weight: 190.106539
  • InchiKey: HRZFUMHJMZEROT-UHFFFAOYSA-L
  • InChI: InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
  • Risk Statements: S26;S39;S46
  • Molecular Formula: Na2O5S2
  • Molecular Structure:CAS No:7681-57-4 Sodium metabisulfite
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7681-57-4 Sodium Metabisulfite

  • Testing Standard: GB1893-2008 Testing Items Index Purity (Na2S2O5) % 96.5 97.1 Sulfur Dioxide (SO2)% 65 65.3 Arsenic (As) % 0.0002 0.0001 Heavy Metals(Pb)% 0.0005 0.00035 Iron (Fe) % 0.003 0.001 Water Insolube Matter % 0.05 0.03 PH value(50g/L soluti...
  • Min. Order: 1
  • FOB Price: USDfalse - false /
  • China Tianjin Xinxin Chemical Factory [Manufacturer, Trading Company, Distributor/Wholesaler]
  • Tel: 86-22-86399960
  • Fax: 86-22-86399961
  • Address: Donglantuo Village,Wangwenzhuang Town,Xiqing District, Tianjin,TianjinChina

7681-57-4 Sodium Metabisulfite 97% Min

  • Testing Standard: GB1893-2008 Testing Items Index Purity (Na2S2O5) % 96.5 97.1 Sulfur Dioxide (SO2)% 65 65.3 Arsenic (As) % 0.0002 0.0001 Heavy Metals(Pb)% 0.0005 0.00035 Iron (Fe) % 0.003 0.001 Water Insolube Matter % 0.05 0.03 PH value(50g/L soluti...
  • Min. Order: 1
  • FOB Price: USDfalse - false /
  • China Tianjin Xinxin Chemical Factory [Manufacturer, Trading Company, Distributor/Wholesaler]
  • Tel: 86-22-86399960
  • Fax: 86-22-86399961
  • Address: Donglantuo Village,Wangwenzhuang Town,Xiqing District, Tianjin,TianjinChina

7681-57-4 SMBS

  • Testing Standard: GB1893-2008 Testing Items Index Purity (Na2S2O5) % 96.5 97.1 Sulfur Dioxide (SO2)% 65 65.3 Arsenic (As) % 0.0002 0.0001 Heavy Metals(Pb)% 0.0005 0.00035 Iron (Fe) % 0.003 0.001 Water Insolube Matter % 0.05 0.03 PH value(50g/L soluti...
  • Min. Order: 1
  • FOB Price: USDfalse - false /
  • China Tianjin Xinxin Chemical Factory [Manufacturer, Trading Company, Distributor/Wholesaler]
  • Tel: 86-22-86399960
  • Fax: 86-22-86399961
  • Address: Donglantuo Village,Wangwenzhuang Town,Xiqing District, Tianjin,TianjinChina

7681-57-4 Sodium metabisulfite

  • Item Food Grade Purity ( As Na2S2O5) 98.0% min Sulfur Dioxide( SO2) 65.0% min Arsenic ( As ) 0.0002% max Heavy metals ( As Pb ) 0.0005% max Selenium (Se ) 0.0005% max Iron (Fe) 0.001% max Water insoluble 0.02% max PH value : 4.0-4.8
  • Min. Order: 20
  • China Weifang Mayshine Imp & Exp Co.,Ltd [Manufacturer, Trading Company]
  • Tel: 86-0536-8868675
  • Address: North of Liyuan Road, West of High Five Road, High-tech District, Weifang ,ShandongChina
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7681-57-4 Sodium metabisulfite

  • sodium metabisulphite for industrial grade: molecular formula: Na2S2O5 molecular weight:190.10 appearance: white crystal powder main content(asNa2S2O5):≥97.0% sodium metabisulphite for food grade: molecular formula:Na2S2O5 molecular weight:190.10 ap...
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  • China Weifang Zhongheng Chemical Co.,Ltd. [Manufacturer, Trading Company]
  • Tel: 86-536-8213379
  • Address: Haixiang Mansion, Haihua Street Weifang,ShandongChina
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7681-57-4 Sodium metabisulfite

  • English Name: Sodium Pyrosulfite Chinese alias: sodium pyrosulfite; a shrinkage of two sodium sulfite; sodium Metabisufite; coke sodium sulfite; sodium metabisulfite; sodium pyrosulfite; edible sodium metabisulfite. CAS:7681-57-4 Molecular formula: N...
  • Min. Order: 1000
  • China Wuhan Hezhong Chemical Manufature Co.,Ltd [Manufacturer]
  • Tel: 86-027-50756235
  • Address: No.496,Zhongshan Road, Wuhan, Hubei, China wuhan,HubeiChina
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7681-57-4 Factory Supply Sodium Metabisulfite CAS.No: 7681-57-4

  • Packaging & Delivery Packaging Details: 25kg/bag Delivery: 7 days after payments Product Name : Sodium Metabisulfite/ Sodium Metabisulphite CAS.No: 7681-57-4 HS CODE: 2832100000 Appearance: white crystals or crystalline powder CERTIFICATE OF ANALYSIS...
  • Min. Order: 5000
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  • China Hubei Ocean Biotech Co,.Ltd [Manufacturer]
  • Tel: 86-027-83733110
  • Address: No. 34, Fazhan Road, Qiaokou Dist.Wuhan Wuhan,HubeiChina
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7681-57-4 Sodium metabisulfite

  • 1.Basic introduction: Product name:Sodium metabisulphite Other name:sodium metabisulfite,sodium pyrosulfite,sodium metabi, Pyrosulfurous acid, disodium salt Appearance:snow white crystal powder or granular Formular Chemical:Na2S2O5 Grade:both tech gr...
  • Min. Order: 10000
  • FOB Price: USDfalse - false /
  • China Hengdong Weichuang Ferrous Co.,Ltd [Manufacturer]
  • Tel: 86-731-85573666
  • Address: Limu Town,Hendong County,Hengyang Hunan,China Hengyang, Hunan Hengyang,HunanChina
Contact Supplier

7681-57-4 Sodium pyrosulfite

  • 1.Basic introduction: Product name:Sodium metabisulphite Other name:sodium metabisulfite,sodium pyrosulfite,sodium metabi, Pyrosulfurous acid, disodium salt Appearance:snow white crystal powder or granular Formular Chemical:Na2S2O5 Grade:both tech gr...
  • Min. Order: 10000
  • FOB Price: USDfalse - false /
  • China Hengdong Weichuang Ferrous Co.,Ltd [Manufacturer]
  • Tel: 86-731-85573666
  • Address: Limu Town,Hendong County,Hengyang Hunan,China Hengyang, Hunan Hengyang,HunanChina
Contact Supplier

7681-57-4 Sodium metabisulfite food grade

  • 1.Basic introduction: Product name:Sodium metabisulphite Other name:sodium metabisulfite,sodium pyrosulfite,sodium metabi, Pyrosulfurous acid, disodium salt Appearance:snow white crystal powder or granular Formular Chemical:Na2S2O5 Grade:both tech gr...
  • Min. Order: 10000
  • FOB Price: USDfalse - false /
  • China Hengdong Weichuang Ferrous Co.,Ltd [Manufacturer]
  • Tel: 86-731-85573666
  • Address: Limu Town,Hendong County,Hengyang Hunan,China Hengyang, Hunan Hengyang,HunanChina
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References of Sodium metabisulfite
Title: Sodium Metabisulfite
CAS Registry Number: 7681-57-4
CAS Name: Sodium pyrosulfite
Molecular Formula: Na2O5S2
Molecular Weight: 190.11
Percent Composition: Na 24.19%, O 42.08%, S 33.73%
Line Formula: Na2S2O5
Literature References: Crystallizes from cold water with 7H2O.
Properties: White crystals or powder; odor of SO2. Freely sol in water, glycerol; slightly sol in alcohol. The aq soln is acid.
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin and mucous membranes. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 284.
Use: Pharmaceutic aid (antioxidant).