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Sodium Isethionate is the sodium salt of 2-hydroxyethane sulfonic acid (isethionic acid), it is used as a hydrophilic head group in washing-active surfactants, known as isethionates (acyloxyethanesulfonates) due to its strong polarity and resistance to multivalent ions.
Sodium Isethionate is being studied as a high production volume chemical in the "High Production Volume (HPV) Chemical Challenge Program" of the US Environmental Protection Agency (EPA).
Sodium isethionate is synthesized by the condensation reaction of sodium bisulfite and ethylene oxide.
CAS: 1562-00-1
MF: C2H5NaO4S
MW: 148.11
EINECS: 216-343-6
Synonyms
sodium2-hydroxyethylsulfonate;sodiumbeta-hydroxyethanesulfonate;Ethanesulfonic acid, 2-hydroxy-, sodium salt (1:1);2-HydroxyethanesuL;phonic acid;Ethanesulfonicacid,2-hydroxy-,monosodiumsalt;sodium2-hydroxy-1-ethanesulfonate;2-Hydroxyethansulfonsure, Na-Salz
Sodium Isethionate is a particularly mild surfactant derived from coconut. Surfactants are organic compounds which aid the blending of liquids which do not ordinarily mix, most obviously oil and water.
Sodium Isethionate has both a hydrophilic (water-loving) and hydrophobic (water fearing) element and is therefore attracted to water and oil alike.
Sodium Isethionate is a sodium salt of 2-hydroxyethanesulfonic acid (hydroxyethyl sulfonate), which is used as a hydrophilic head group in detergent active surfactants.
Due to its strong polarity and resistance to multivalent ions, Sodium Isethionate is called hydroxyethyl sulfonate (acyloxyethanesulfonate).
Sodium Isethionate is being studied as a high-yield chemical in the High Production (HPV) Chemical Challenge Program of the US Environmental Protection Agency (EPA).
Sodium Isethionate is a colorless, free flowing, non hygroscopic solid that is easily soluble in water and has good biodegradability.
Due to the synthesis method, the sample usually contains trace amounts of sodium sulfite or sodium bisulfite, resulting in a pH value of about 10 in the aqueous solution, which is weakly alkaline.
Sodium Isethionate Chemical Properties
Melting point: 191-194 °C(lit.)
density: 1762.7[at 20℃]
bulk density: 800kg/m3
storage temp.: Store below +30°C.
solubility H2O: 0.1 g/mL, clear, colorless
form: Fine Powder
color: White
PH: 7.0-11.0 (20g/l, H2O, 20℃)
Water Solubility: SOLUBLE
BRN: 3633992
Stability: Stable. Hygroscopic. Incompatible with strong oxidizing agents, strong acids.
Cosmetics Ingredients Functions CLEANSING
ANTISTATIC
HAIR CONDITIONING
SKIN CONDITIONING
InChI: InChI=1S/C2H6O4S.Na/c3-1-2-7(4,5)6;/h3H,1-2H2,(H,4,5,6);/q;+1/p-1
InChIKey: LADXKQRVAFSPTR-UHFFFAOYSA-M
LogP: -4.6 at 20℃
CAS DataBase Reference: 1562-00-1(CAS DataBase Reference)
EPA Substance Registry System: Sodium Isethionate (1562-00-1)
Sodium isethionate is a colorless, syrupy, strongly acidic liquid that can form detergents with oleic acid.
Sodium Isethionate is an organic salt and an important intermediate for pharmaceuticals, cosmetics and daily chemicals.
Uses
Sodium Isethionate is an amphoteric detergent used in detergent bar soaps.
Sodium Isethionate makes a dense lather in addition to the lather made by the soap.
Sodium Isethionate is mild on the skin, and non-drying.
Sodium Isethionate works equally well in soft or hard water.
Sodium Isethionate is also an anti-static agent in shampoos.
Sodium Isethionate works as an amphoteric detergent and can also be used as an intermediate in preparing surfactants derived from fatty acid sulfoalkyl esters (acyloxy ethane sulfonate).
Sodium Isethionate increases the formulation's stability, improves the detergency in hard water, and is smooth to the skin.
Sodium Isethionate is used in cleaning/washing agents, disinfectants, cosmetics, surface-active agents, shampoos, and bubble baths.
The main use of Sodium Isethionate is the production of the isethionate class of surfactants.
These are readily foaming and particularly mild, making them suitable for cleaning sensitive skin and are therefore mainly used in baby soaps and shampoos.
Because of its pronounced skin compatibility Sodium Isethionate is added to soaps and liquid skin cleansers with up to 15 parts by weight.
From sodium 2-hydroxyethyl sulfonate the so-called biological buffers such as HEPES, MES, PIPES etc. are easily accessible.
The addition of 2-hydroxyethyl sulfonate to electroplating baths allows higher current densities and lower concentrations than the much more expensive methane sulphonic acid with improved appearance.
Sodium Isethionate is an organic salt and an important intermediate for pharmaceuticals, cosmetics, and daily chemicals.
Sodium Isethionate can be used as an amphoteric detergent and as an intermediate for the preparation of surfactants derived from fatty acid sulfonalkyl esters (acyloxyethane sulfonates).
Sodium isethionate can increase the stability of the formula, improve the detergency of hard water, and be smooth on the skin.
These characteristics are generally applicable to soap and shampoo formulations in the home care, industrial and public facilities, and personal care markets.
Adding Sodium Isethionate to the final product can produce rich foam, reduce soap residue on the skin, and can also be used as the main antistatic agent in shampoo, so it is well received and recognized by consumers.
