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Sodium formaldehydesulfoxylate hydrate is listed in the European Cosmetics Directive as sodium oxymethylene sulfoxylate (INCI).
Sodium formaldehydesulfoxylate hydrate is water-soluble and generally sold as the dihydrate.
Sodium formaldehydesulfoxylate is a long name for a rather small molecule.
CAS Number: 6035-47-8
Molecular Formula: CH5NaO4S
Molecular Weight: 136.1
EINECS Number: 205-739-4
Synonyms: Sodium hydroxymethanesulfinate, Rongalite, 149-44-0, Rongalit, Sodium formaldehyde sulfoxylate, Discolite, Formopan, Hydrolit, Leptacid, Leptacit, Aldanil, Rodite, Rongalite C, Superlite C, Bleachit D, Rongalit C, Hydrosulfite AWC, Redol C, Sodium hydroxymethanesulphinate, Formaldehyde sodium sulfoxylate, Methanesulfinic acid, hydroxy-, monosodium salt, Hydroxymethanesulfinic acid sodium salt, SODIUM FORMALDEHYDESULFOXYLATE, Sodium methanalsulfoxylate, Formapon, Natrium hydroxymethansulfinat, Natrium formaldehydesulfoxylat, Sodium oxymethanesulfinic acid, Sodium Sulfoxylate Formaldehyde (anhydrous), Sodium (hydroxymethyl)sulfinate, HSDB 5648, NSC 4847, EINECS 205-739-4, Hydroxymethansulfinsaeure, natriumsalz, Oxymethansulfinsaeuren natrium, Sodium sulfoxylate formaldehyde, Formaldehydesulfoxylic acid sodium salt, Oxymethansulfinsaeuren natrium [German], sodium oxymethylene sulfoxylate, X4ZGP7K714, ALBALITE C, AI3-23202, Sodium sulfoxylate formaldehyde (anhydrous) [USAN], Sodium hydroxymethylsulfinate, sodium formaldehyde sulphoxylate, DTXSID7027120, Monosodium hydroxymethanesulfinate, EC 205-739-4, NSC-4847, SODIUM FORMALDEHYDE SULFOXYLATE [II], SODIUM FORMALDEHYDE SULFOXYLATE [MI], SODIUM FORMALDEHYDE SULFOXYLATE [MART.], Methanesulfinic acid, 1-hydroxy-, sodium salt (1:1), SODIUM SULFOXYLATE FORMALDEHYDE (ANHYDROUS) [HSDB], SODIUM FORMALDEHYDE SULFOXYLATE (II), Sodium formaldehyde sulfoxylate (NF), Sodium formaldehyde sulfoxylate [NF], SODIUM FORMALDEHYDE SULFOXYLATE (MART.), Sodium formaldehyde sulfoxylate hydrate, Sodium formaldehydesulfoxylate dihydrate, Sodium formaldehyde sulfoxylate anhydorous, UNII-X4ZGP7K714, sodiumhydroxymethanesulfinate, SCHEMBL6786, sodium;hydroxymethanesulfinate, DTXCID507120, FORMALDEHYDE HYDROSULFITE, CHEMBL2107242, Tox21_201133, AKOS006230660, AKOS015898852, AT30644, FS33176, NCGC00258685-01, CAS-149-44-0, NS00078166, R0053, Methanesulfinic acid, hydroxy, monosodium salt, SODIUM OXYMETHYLENE SULFOXYLATE [INCI], EN300-7403196, Methanesulfinic acid, 1hydroxy, sodium salt (1:1), Q3492820, Hydroxymethanesulfinic acid monosodium salt hydrate, Sodium hydroxymethylsulfinate hydrate, Rongalit hydrate, SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE;RONGALIT(R);HYDROXYMETHANESULFINIC ACID SODIUM SALT HYDRATE
Sodium formaldehydesulfoxylate hydrate also goes by the name sodium hydroxymethanesulnate or, most commonly, its trade name Rongalite.
Sodium formaldehydesulfoxylate hydrate is usually marketed as the dihydrate.
Sodium formaldehydesulfoxylate hydrate is a hydrated form of sodium formaldehydesulfoxylate, a chemical compound commonly used as a reducing agent in various industrial applications.
It is often employed in textile and paper industries for bleaching and as a discharge agent in dyeing processes.
Additionally, Sodium formaldehydesulfoxylate hydrate is used in polymerization reactions and in the production of certain pharmaceuticals.
The hydrate form means that the molecule is associated with water, which can influence its stability, solubility, and reactivity.
Sodium formaldehydesulfoxylate hydrate is a water-containing form of sodium formaldehydesulfoxylate, a chemical compound primarily known for its role as a strong reducing agent in various industrial and laboratory applications.
Sodium formaldehydesulfoxylate hydrate is widely used in the textile industry as a bleaching agent and in discharge printing, where it helps remove dyes from fabrics without causing significant damage to the material.
Additionally, it serves as a polymerization initiator in the production of plastics and synthetic resins, aiding in the controlled formation of polymers.
Sodium formaldehydesulfoxylate hydrate is a chemical compound with the molecular formula Na+HOCH2SO2−.
This salt has many additional names, including Rongalit, Sodium formaldehydesulfoxylate hydrate, sodium formaldehyde sulfoxylate, and Bruggolite.
Sodium formaldehydesulfoxylate hydrate is listed in the European Cosmetics Directive as sodium oxymethylene sulfoxylate (INCI).
Sodium formaldehydesulfoxylate hydrate is water-soluble and generally sold as the dihydrate.
Sodium formaldehydesulfoxylate hydrate compound and its derivatives are widely used in the dye industry.
Although available commercially, the salt can be prepared from sodium dithionite and formaldehyde: Na2S2O4 + 2 CH2O + H2O → HO-CH2-SO3Na + HO-CH2-SO2Na
This reaction proceeds quantitatively, such that dithionite can be determined by its conversion to Rongalite, which is far less O2- sensitive and thus easier to handle.
The hydroxymethanesulnate ion is unstable in solution towards decomposition to formaldehyde and sulte.
Addition of at least one equivalent of formaldehyde pushes the equilibrium towards the side of the adduct and reacts further to give the bis-(hydroxymethyl)sulfone.
Such solutions are shelf-stable indenitely.
Sodium hydroxymethanesulnate was originally developed in the early 20th century for the textile industry as a shelf-stable source of sulfoxylate ion, where the latter can be generated at will.
Sodium formaldehydesulfoxylate hydrate In use, when sodium hydroxymethanesulnate is made acidic, the reducing sulfoxylate ion and formaldehyde are released in equimolar amounts.
For safety reasons the generation of formaldehyde must be taken into consideration when used industrially.
NaHOCH2SO2 can essentially be considered to be a source of SO22−.
As such it is used both as a reducing agent and as a reagent to introduce SO2 groups into organic molecules.
Treatment of elemental Se and Te with NaHOCH2SO2 gives solutions containing the corresponding Na2Sex and Na2Tex, where x is approximately.
Sodium formaldehydesulfoxylate hydrate is a chemical compound that exists as a hydrated form of sodium formaldehydesulfoxylate, meaning it contains water molecules within its crystalline structure.
This water content can influence its stability, solubility, and reactivity, making it behave slightly differently from its anhydrous counterpart.
Sodium formaldehydesulfoxylate hydrate is widely used across multiple industries due to its strong reducing properties, making it particularly valuable in applications that require the removal of oxygen or the breakdown of colored compounds.
One of the most significant uses of sodium formaldehydesulfoxylate hydrate is in the textile industry, where it acts as a discharge agent in printing and dyeing processes.
In fabric printing, it allows for selective removal of dyes, enabling the creation of intricate patterns and designs.
Similarly, it is used as a bleaching agent in the paper industry to remove unwanted colors from pulp and improve the brightness of the final product.
Beyond textiles and paper, Sodium formaldehydesulfoxylate hydrate finds applications in water treatment processes, where it helps remove or neutralize unwanted colorants from wastewater.
It is particularly effective at breaking down azo dyes and other stubborn pigments that can be difficult to eliminate using conventional treatment methods.
This makes it an important ingredient in environmental management practices, ensuring that industrial wastewater can be safely processed and released.
Melting point: 64-68 °C(lit.)
Density: 1.8 g/cm3 (20℃)
bulk density: 950kg/m3
vapor pressure: 2.68 hPa (20 °C)
storage temp.: Store below +30°C.
solubility: alcohol: slightly soluble(lit.)
form: powder to crystal
color: White to Almost white
PH: 9.5-10.5 (100g/l, H2O, 20℃)
Water Solubility: H2O: 50mg/mL, clear, colorless
Sodium formaldehydesulfoxylate hydrate plays a role in decolorizing wastewater by breaking down and reducing colored compounds into less visible or colorless substances.
Sodium formaldehydesulfoxylate hydrate is also employed in the pharmaceutical industry as an intermediate in drug synthesis, contributing to the development of certain medications.
Being a hydrate, Sodium formaldehydesulfoxylate hydrate contains water molecules within its crystal structure, which can affect its physical properties, such as solubility, stability, and reaction behavior.
The presence of water in the hydrated form can influence its handling and storage, as exposure to air or moisture may lead to changes in its composition over time.
Despite its widespread industrial use, proper precautions are necessary when handling sodium formaldehydesulfoxylate hydrate, as it can release sulfur dioxide gas under certain conditions, which may cause respiratory irritation.
Sodium formaldehydesulfoxylate hydrate In the production method, anhydrous sodium sulte is rstly added in the concentration process of a prepared sodium formaldehyde sulfoxylate solution; and a sodium hydroxide solution or a soda ash solution is added before the prepared sodium formaldehyde sulfoxylate solution is concentrated.
Sodium formaldehydesulfoxylate hydrate advantage is to provide a production method of odorless anhydrous sodium sulte, thus the odor of free formaldehyde in products is eliminated, the odor generated because products are aected with damp and decomposed is eliminated, and moisture absorption, caking and decomposition of products are prevented, so that the storage stationary phase of the products is long and can be stored for a year under a closed state but not caked and stunk, and the product quality is improved; 35% of aqueous solution is transparent after the product is dissolved; and the production method is environment-friendly and clean, and is suitable for production of platy, blocky, powdered, granular and crushed sodium formaldehyde sulfoxylate products.
Sodium formaldehyde sulphoxylate is shown to be an inexpensive, ecient reagent for the dehalogenation of phenacyl halides and other α-haloketones. Some possible mechanisms for the reduction are discussed.
Sodium Formaldehyde Sulfoxylate also called SFS is a white powder or granules with slight specic odor.
Sodium formaldehydesulfoxylate hydrate contains Sodium Hydroxymethane Sulnate as active ingredient and is used as reducing agent in initiator systems for the main or post polymerization of emulsion polymers.
Sodium formaldehyde sulfoxylate is a white solid chemical, soluble in water.
Sodium formaldehyde sulfoxylate is generally used as an industrial bleaching agent for textiles, molasses, and soaps.
Sodium formaldehydesulfoxylate hydrate also has a niche use as a water conditioner, reducing the amount of chlorine, and in pharmaceuticals as an antioxidant.
Sodium formaldehydesulfoxylate hydrate is employed as a polymerization initiator, playing a crucial role in the production of synthetic resins, plastics, and rubber materials.
By controlling the polymerization reaction, it helps manufacturers create materials with specific properties suited for various industrial and consumer applications.
Additionally, the pharmaceutical industry utilizes sodium formaldehydesulfoxylate hydrate as a reagent and intermediate in drug synthesis.
Its reducing capabilities are often harnessed in chemical reactions that require precise control over oxidation states, making it a valuable tool in the development of certain medications.
Despite its many uses, Sodium formaldehydesulfoxylate hydrate must be handled with care.
When exposed to acidic conditions or high temperatures, it can decompose and release sulfur dioxide (SO₂) gas, which has a strong, pungent odor and can cause respiratory irritation if inhaled in significant quantities.
Therefore, proper storage and handling procedures, including good ventilation and protective equipment, are essential when working with this compound.
Sodium formaldehydesulfoxylate hydrate is a versatile and essential chemical with widespread applications across textiles, paper production, water treatment, polymer chemistry, and pharmaceuticals.
Its ability to act as a powerful reducing agent makes it indispensable in many industrial processes, while
Uses:
Sodium hydroxymethanesulfinate dihydrate is a versatile reagent that can be used for a wide range of organic transformations such as: A SO2-2anion source for the preparation of sulfones and sultines. Debromination of vicinal dibromoalkanes.
Reductive dehalogenation of aldehydes and ketones.
Sodium formaldehydesulfoxylate hydrate is typically used as a preservative, antioxidant and stabilizer.
Sodium formaldehydesulfoxylate hydrate is widely used across various industries due to its powerful reducing properties, making it a crucial chemical in applications that require the removal of oxygen, the breakdown of colored compounds, or the initiation of polymerization reactions.
Its versatility allows it to serve as an essential ingredient in textile processing, paper manufacturing, wastewater treatment, polymer production, and even pharmaceutical synthesis, each of which relies on its unique ability to facilitate chemical transformations in controlled environments.
One of the most significant applications of sodium formaldehydesulfoxylate hydrate is in the textile industry, where it plays a key role in discharge printing, a specialized dyeing technique that removes color from specific areas of fabric to create intricate patterns and designs.
Unlike traditional dyeing methods that involve adding pigments, discharge printing selectively strips dye from the material without significantly weakening or degrading the fabric itself.
Sodium formaldehydesulfoxylate hydrate acts as a reducing agent, breaking down the dye molecules into colorless or less pigmented forms, allowing for precise and controlled patterning in the final textile product.
Additionally, sodium formaldehydesulfoxylate hydrate is used as a bleaching agent for fabrics, particularly in cases where mild yet effective bleaching is required.
It helps remove unwanted shades or inconsistencies in coloration, ensuring that textiles achieve a uniform appearance before further processing, such as printing or additional dyeing.
Because it does not cause excessive damage to fibers, it is preferred over harsher oxidizing agents in delicate fabric treatments.
In the paper and pulp industry, sodium formaldehydesulfoxylate hydrate is employed as a color-stripping and bleaching agent to enhance the brightness and whiteness of paper products.
Many raw paper pulps contain natural colorants or contaminants that result in an undesired hue, which can affect the quality and appearance of the final paper.
The compound works by reducing and neutralizing these color-causing compounds, effectively decolorizing the pulp and improving the optical properties of the finished paper.
Its selective bleaching action is particularly useful in recycled paper processing, where previously printed or colored fibers need to be de-inked and brightened before being reused.
Unlike harsh chlorine-based bleaching agents, sodium formaldehydesulfoxylate hydrate offers a gentler and more environmentally friendly alternative for achieving high-quality recycled paper products.
Another important application of sodium formaldehydesulfoxylate hydrate is in the treatment of industrial wastewater, where it serves as a highly effective decolorizing agent.
Many industrial processes, particularly those in the textile, dyeing, and chemical manufacturing sectors, produce wastewater containing high concentrations of colored compounds that are resistant to conventional treatment methods.
The reducing properties of Sodium formaldehydesulfoxylate hydrate allow it to break down complex dye molecules, such as azo dyes, anthraquinone dyes, and sulfur dyes, into simpler, less pigmented forms.
This not only improves the clarity of wastewater but also makes it easier for subsequent filtration and purification processes to remove remaining impurities.
By aiding in the removal of persistent organic pollutants, the compound contributes to more sustainable and environmentally responsible wastewater management.
In the field of polymer chemistry, Sodium formaldehydesulfoxylate hydrate is widely used as a polymerization initiator, particularly in the production of synthetic resins, plastics, and rubber-based materials.
Many polymerization reactions require precise control over the reaction environment to ensure that polymer chains form with the desired molecular weight, structural properties, and functional characteristics.
By acting as a reducing agent, the compound helps initiate and regulate radical polymerization reactions, which are essential for producing high-performance polymers with controlled mechanical and chemical properties.
Additionally, it is sometimes used as a stabilizing agent to prevent premature oxidation or degradation of certain polymer formulations, ensuring that the final product retains its intended strength, flexibility, and durability.
Sodium formaldehydesulfoxylate hydrate is also used in pharmaceutical manufacturing, where it serves as a key reagent in various chemical reactions involved in drug synthesis.
Because of its ability to selectively reduce functional groups in organic compounds, it is particularly valuable in fine chemical synthesis, where precise control over oxidation states is necessary to produce pharmaceutical intermediates and active ingredients.
For example, in the synthesis of certain antibiotics, anti-inflammatory drugs, and specialty chemicals, sodium formaldehydesulfoxylate hydrate is utilized to modify molecular structures in a controlled manner, ensuring the production of high-purity pharmaceutical compounds.
Its role in these reactions helps improve reaction efficiency and yield while minimizing unwanted side reactions that could compromise the quality of the final drug product.
Although less common, sodium formaldehydesulfoxylate hydrate has niche applications in the photographic and electronics industries, where it is used as a reducing agent in specialized chemical processes.
In traditional photographic development, it has been employed to reduce silver halide crystals in photographic film, helping to enhance image clarity and contrast.
In the electronics sector, it can be used in the production of certain electronic components that require controlled reduction reactions during their manufacturing.
Sodium formaldehydesulfoxylate hydrate is sometimes found in formulations designed to prevent oxidation or to facilitate etching and plating processes in semiconductor fabrication.
While sodium formaldehydesulfoxylate hydrate offers many industrial benefits, it must be handled with care due to its potential to release sulfur dioxide (SO₂) gas when exposed to acidic conditions or high temperatures.
Sulfur dioxide is an irritant gas that can cause respiratory discomfort, particularly in enclosed spaces or poorly ventilated areas.
To ensure safe usage, workers handling the compound should use proper protective equipment, including gloves, goggles, and respiratory protection when necessary.
Sodium formaldehydesulfoxylate hydrate should be stored in a cool, dry place away from moisture and acidic substances to prevent unwanted decomposition or hazardous reactions.
Sodium formaldehydesulfoxylate hydrate is a highly versatile compound with widespread applications in industries ranging from textile and paper production to water treatment, polymer chemistry, and pharmaceuticals.
Its powerful reducing properties make it invaluable for processes that require decolorization, polymerization control, or chemical synthesis.
Additionally, its relatively mild yet effective bleaching action makes it a preferred alternative to harsher oxidative agents in delicate industrial processes.
Despite its many benefits, proper safety measures must be observed when handling this compound to prevent exposure to harmful byproducts.
Sodium formaldehydesulfoxylate hydrate is typically used as a preservative, antioxidant and stabilizer.
Safety Profile:
Sodium formaldehydesulfoxylate hydrate, while widely used in industrial and chemical applications, poses several health, environmental, and safety risks if not handled properly.
Its hazardous properties primarily arise from its ability to decompose under certain conditions, releasing toxic gases, as well as its potential to cause skin and respiratory irritation. Below is a detailed breakdown of its hazards.
When heated or exposed to acidic conditions, sodium formaldehydesulfoxylate hydrate decomposes and releases sulfur dioxide (SO₂) gas, which is a toxic and irritating substance.
Sulfur dioxide is a strong respiratory irritant that can cause symptoms such as coughing, throat irritation, difficulty breathing, and chest tightness.
Prolonged or repeated exposure to SO₂ can lead to chronic respiratory conditions such as bronchitis or aggravated asthma.
High concentrations of SO₂ exposure can cause pulmonary edema (fluid buildup in the lungs), which can be life-threatening if not treated.
Direct contact with sodium formaldehydesulfoxylate hydrate can cause skin irritation, leading to redness, dryness, and itching.
Prolonged exposure or repeated handling may result in dermatitis, particularly in individuals with sensitive skin.
If Sodium formaldehydesulfoxylate hydrate comes into contact with the eyes, it can cause moderate to severe irritation, leading to symptoms such as redness, tearing, burning sensation, and blurred vision.
In severe cases, eye exposure can cause corneal damage, requiring immediate medical attention.
If accidentally swallowed, sodium formaldehydesulfoxylate hydrate can cause gastrointestinal distress, including nausea, vomiting, abdominal pain, and diarrhea.
The breakdown of the compound in the stomach may release toxic byproducts, leading to metabolic disturbances and potential organ toxicity if ingested in large amounts.
Ingestion of large quantities could lead to systemic poisoning, requiring emergency medical treatment.
When released into water sources, sodium formaldehydesulfoxylate hydrate can disrupt aquatic ecosystems by altering the chemical balance of water bodies.
Sodium formaldehydesulfoxylate hydrate can reduce dissolved oxygen levels, leading to harmful effects on fish and other aquatic organisms.
The compound’s sulfur-based decomposition products can contribute to water pollution and may be toxic to aquatic life.
