Sodium Sulphite

Sodium Sulphite Properties

Melting point	500 °C
Density	2.63
refractive index	1,484
storage temp.	Store at +5°C to +30°C.
solubility	H₂O: 1 M at 20 °C, clear, colorless
form	Solid
Specific Gravity	2.633
color	White to slightly yellow
PH	9.0-10.5 (25℃, 1M in H2O)
Odor	Odorless
PH Range	9.0 - 10.5 at 126 g/l at 25 °C
Water Solubility	23 g/100 mL (20 ºC)
Sensitive	Hygroscopic
Merck	14,8682
Stability	Stable. Incompatible with strong acids. Moisture and air sensitive.
CAS DataBase Reference	7757-83-7(CAS DataBase Reference)
FDA 21 CFR	182.3798; 582.3798; 177.1200
Substances Added to Food (formerly EAFUS)	SODIUM SULFITE
SCOGS (Select Committee on GRAS Substances)	Sodium sulfite
EWG's Food Scores	1-2
NCI Dictionary of Cancer Terms	sodium sulfite
FDA UNII	VTK01UQK3G
NIST Chemistry Reference	sodium sulfite(7757-83-7)
EPA Substance Registry System	Sodium sulfite (7757-83-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Hazard statements

H315-H319-H335

Precautionary statements

P233-P260-P261-P264-P271-P280-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501

Hazard Codes

Xn

Risk Statements

31-36/37/38-22-40-36/38

Safety Statements

24/25-36-26-22

WGK Germany

1

RTECS

WE2150000

F

3-10

TSCA

Yes

HS Code

28321000

Toxicity

LD50 i.v. in mice: 175 mg/kg, Hoppe, Goble, J. Pharmacol. Exp. Ther. 101, 101 (1951)

NFPA 704

	0
1		1

Sodium Sulphite price More Price(55)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	SX0785	Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS	7757-83-7	500g	$74.7	2024-03-01	Buy
Sigma-Aldrich	SX0785	Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS	7757-83-7	2.5kg	$280	2024-03-01	Buy
Sigma-Aldrich	SX0785	Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS	7757-83-7	12kg	$386	2024-03-01	Buy
Sigma-Aldrich	901916	Sodium sulfite anhydrous, Redi-Dri?, reagent grade, ≥98%	7757-83-7	250G	$50.5	2024-03-01	Buy
Sigma-Aldrich	901916	Sodium sulfite anhydrous, Redi-Dri?, reagent grade, ≥98%	7757-83-7	1KG	$92.2	2024-03-01	Buy

Product number	Packaging	Price	Buy
SX0785	500g	$74.7	Buy
SX0785	2.5kg	$280	Buy
SX0785	12kg	$386	Buy
901916	250G	$50.5	Buy
901916	1KG	$92.2	Buy

Sodium Sulphite Chemical Properties,Uses,Production

Chemical Properties

Upon contact with strong or weak acids, Na2SO3 undergoes decomposition, liberating gaseous sulphur dioxide.

Sodium sulfite reacts with aldehydes to yield a bisulfite adduct. However, sulfonic acids are produced from their reaction with ketones.

Solutions of sodium sulfite are oxidised by atmospheric oxygen, yielding sodium sulphate.

This compound is insoluble in ammonia and chlorine.

Uses

sodium sulphite is a white, water-soluble solid and used commercially as an antioxidant and preservative. It is also suitable for the softening of lignin in the pulping and refining processes of wood and lignocellulosic materials.

Preparation

Sodium sulfite can be prepared by treating a solution of sodium hydroxide with sulfur dioxide. When conducted in warm water, Na2SO3 initially precipitates as a white solid. With more SO2, the solid dissolves to give the disulfite, which crystallizes upon cooling.
preparation of sodium sulphite.png

Structure and conformation

According to X-ray crystallography sodium sulfite heptahydrate features pyramidal SO32- centers. The S-O distances are 1.50 and the O-S-O angles are near 106º.

Toxicity evaluation

Sodium sulfite produces toxic and corrosive fumes. It is a strong reducing agent. It reacts violently with oxidants.

Sodium Sulphite Preparation Products And Raw materials

Raw materials

Sulfur Sodium sulfide nonahydrate Sodium dithionite Sodium sulfide Sulfur dioxide

Phenol SODIUM SULFITE HEPTAHYDRATE Benzene Sodium bisulfite solution Sulphur

Sodium hydroxide Sulfuric acid Sodium carbonate

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Preparation Products

HEPTALDEHYDE SODIUM BISULFITE Zonisamide 2-(2-FLUORO-PHENYL)-ETHANESULFONYL CHLORIDE Sodium decane-1-sulfonate 1-TRIDECANESULFONIC ACID SODIUM SALT

acramoll W paste 1-TETRADECANESULFONIC ACID SODIUM SALT 1,4-Butane sultone Sodium pentanesulfonate M-TOLYL-METHANESULFONYL CHLORIDE

friction reducer SAF 2-Trifluoromethylbenzylsulfonyl chloride Emulsifier OS 2-BROMORESORCINOL O-TOLYL-METHANESULFONYL CHLORIDE

3-Cyanophenylhydrazine hydrochloride R-(-)-Apomorphine 6-FLUORO-2-NAPHTHOIC ACID Sodium 1-butanesulfonate 2-(4-FLUORO-PHENYL)-ETHANESULFONYL CHLORIDE

Sodium 1-octanesulfonate Sodium 2-bromoethanesulphonate 1-Methyl-4-(methylsulfonyl)-benzene Sodium 1-hexanesulfonate 1,8-DINITROANTHRAQUINONE

2-Bromo-6-fluoronaphthalene 3,3-Dimethylglutaric acid 4-Iodoanisole 1-BUTANESULFONIC ACID SODIUM SALT MONOHYDRATE 1-HEPTANESULFONIC ACID SODIUM SALT MONOHYDRATE

1-NONANESULFONIC ACID SODIUM SALT (2-FLUORO-PHENYL)-METHANESULFONYL CHLORIDE 2-NITRO-ALPHA-TOLUENESULFONYL CHLORIDE 2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT 1-HEXADECANESULFONIC ACID SODIUM SALT

Sodium 1-heptanesulfonate 4-TRIFLUOROMETHYLBENZYLSULFONYL CHLORIDE (3-TRIFLUOROMETHOXY-PHENYL)-HYDRAZINE HYDROCHLORIDE N-(4-iodobenzoyl)-L-glutamic acid 6-BROMONAPHTHALEN-2-AMINE

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Sodium Sulphite Suppliers

Global( 749)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12471	58
Hebei Dangtong Import and export Co LTD	+8615632927689	admin@hbdangtong.com	China	986	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971 +86-17331933971	deasea125996@gmail.com	China	2503	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	994	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	1685	58
Hebei Shengyang Water Conservancy Engineering Co., Ltd.	+8615373025980	clara@hbshengyang.com	China	781	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21689	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9341	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32686	60
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55

Supplier	Advantage
Hebei Mojin Biotechnology Co., Ltd	58
Hebei Dangtong Import and export Co LTD	58
Henan Bao Enluo International TradeCo.，LTD	58
Anhui Ruihan Technology Co., Ltd	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	58
Hebei Shengyang Water Conservancy Engineering Co., Ltd.	58
Henan Tianfu Chemical Co.,Ltd.	55
Hangzhou FandaChem Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Hefei TNJ Chemical Industry Co.,Ltd.	55

View Lastest Price from Sodium Sulphite manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2021-11-15	Sodium sulphite 7757-83-7	US $0.00 / KG	1KG	99%	200000pcs	Qiuxian Baitai New Material Co., LTD
2020-12-22	Sodium sulphite 7757-83-7	US $100.00 / KG	1KG	99.9%	20 tons	Hebei Guanlang Biotechnology Co., Ltd.
2020-11-25	Sodium Sodium 69388-84-7	US $35.00 / KG	100KG	99%	20	Hebei Henghe Import and Export Trading Co. LTD

Sodium sulphite
7757-83-7
US $0.00 / KG
99%
Qiuxian Baitai New Material Co., LTD

Sodium sulphite
7757-83-7
US $100.00 / KG
99.9%
Hebei Guanlang Biotechnology Co., Ltd.

Sodium Sodium
69388-84-7
US $35.00 / KG
99%
Hebei Henghe Import and Export Trading Co. LTD

Sodium sulfite Spectrum

Sodium sulfite(7757-83-7)IR1

7757-83-7(Sodium Sulphite)Related Search:

POTASSIUM NITRITE METHYL LINOLENATE Sodium metabisulfite Sodium bicarbonate Zirconium dioxide

Sodium thiosulfate pentahydrate Sodium benzoate Sodium hydroxide Sodium acetate Sodium gluconate

Sodium carbonate Sodium chloride D(+)-Glucose Sodium thiosulfate Sodium bisulfite

Sodium sulfate Lithium bromide POTASSIUM SULFITE Sodium Sulfite Anhydrous Sodium Sulphite

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