SODIUM LAURETH SULFATE POE(2) (SLES)

SODIUM LAURETH SULFATE POE(2)
PRODUCT IDENTIFICATION
CAS NO	3088-31-1, 68891-38-3, 9004-82-4
EINECS NO.	221-416-0
FORMULA	CH₃(CH₂)₁₀CH₂(OCH₂CH₂)₂OSO₃Na
MOL WT.
H.S. CODE	3402.11
TOXICITY	Oral rat LD50: 5000mg/kg
SYNONYMS	Soudium POE(2) Lauryl Ether Sulfate;
Soudium Diethylene Glycol Lauryl Ether Sulfate; Sodium Lauryl Ether Sulfate; 2-(2-dodecyloxyethoxy)Ethyl Sodium Sulfate; Diethylene Glycol Monododecyl Ether Sulfate Sodium Salt; Lauristyl Diglycol Ether Sulfate Sodium Salt; Lauryl Diethylene Glycol Ether Sulfonate Sodium; Sodium Dioxyethylenedodecyl Ether Sulfate; Sodium Lauryl Alcohol Diglycol Ether Sulfate; Sodium Lauryloxyethoxyethyl Sulfate; Sodiumlaurylglycolether Sulfate; Natrium-2-(2-dodecyloxyethoxy)ethylsulfat (German); Sulfato de sodio y 2-(2-dodeciloxietoxi)etilo (Spanish); Ssulfate de sodium et de 2-(2-dodécyloxyethoxy)éthyle (French);
PRICE
CLASSIFICATION	SURFACTANTS /
PHYSICAL AND CHEMICAL PROPERTIES
	27%	68%
PHYSICAL STATE	Light yellow liquid	Yellow viscous liquid to paste
MELTING POINT	-2 C	5 C
BOILING POINT	100 C	100 C
SPECIFIC GRAVITY	1.04	1.03
SOLUBILITY IN WATER	soluble
pH	6 - 7.5 (10% Sol.)	6.5 - 8.5
VISCOSITY	375 cps (at 25 C)
AUTOIGNITION
REFRACTIVE INDEX
NFPA RATINGS	Health: 1; Flammability: 1 ; Reactivity: 0
FLASH POINT	94 C
STABILITY	Stable under ordinary conditions
GENERAL DESCRIPTION & APPLICATIONS
Sulfonic acid is a compound with general formula RSO₂OH, where R is an aliphatic or aromatic hydrocarbon. It is a derivative of sulfuric acid (HOSO₂OH) where an OH has been replaced by a carbon group or a compound where a hydrogen atom has been replaced by treatment with sulfuric acid; for example, benzene is converted to benzenesulfonic acid (water-soluble). Sulfonic acid has a sulfur atom bonded to a carbon atom of a hydrocarbon and bonded also to three oxygen atoms, one of which has been attached to a hydrogen atom. Sulfonic acid is acidic due to the hydrogen atom, stronger than a carboxylic acid. Sulfonic acid is one of the most important organo sulfur compounds in organic synthesis. Sulfonic acids are used as catalysts in esterification, alkylation and condensation reactions. Sulfonates are salts or esters of sulfonic acid. Sulfonic salts are soluble in water. Sulfonic acid and its salts present in organic dyes provide useful function of water solubility and or improve the washfastness of dyes due to their capabiltity of binding more tightly to the fabric. They are widely used in the detergent industry. Alkylbenzene sulfonic acid is the largest-volume synthetic surfactant because of its relatively low cost, good performance, the fact that it can be dried to a stable powder and the biodegradable environmental friendliness. Sodium lauryl sulfate (SLS), prepared by sulfation of lauryl alcohol and neutralisation with sodium carbonate, is another common surfactant which has an amphiphilic properties due to C12 chain ( lipophilic) attached to a sulfate group (hydrophilic). This bifunctionality in one molecule provides the basic properties useful in cleaners and detergents. SLS is used as a wetting agent in textiles, foaming and cleaning agent in detergent, cosmetic emulsifier, and sometimes in toothpastes. Sulfonate cleaners do not form an insoluble precipitates in hard water. Ammonium lauryl sulfate (ALS) is a structurally related compound, replacing ammonium group for sodium. They have same applications. But they cause skin and eye irritation, and are therefore not useful in in products that are on the skin for a long time. The ethoxylated SLS and ALS are less irritant on the skin; sodium laureth sulfate (sodium lauryl ether sulfate, SLES) and ammonium laureth sulfate (ammonium lauryl ether sulfate, ALES) which are prepared by addition of ethylene oxide. SLES and ALES are used as a foaming and viscosity builder in shampoos and personal care products (such as bubble bath, shaving cream , ointment, and tooth pastes sometimes) particularly of low pH products. One more common feature of them appears to be the compatibility with other surfactants.
SALES SPECIFICATION
	27%	68%
APPEARANCE	Light yellow liquid	Yellow viscous liquid to paste
ACTIVE MATTER	27.0% min	68.0% min
UNSULFATED ALCOHOL	0.5% max	3.0% max
SODIUM CHLORIDE	0.5% max	1.0% max
SODIUM SULFATE	0.5% max	1.0% max
TRANSPORTATION
PACKING	110kgs in Drum, 17.4mts in container
HAZARD CLASS
UN NO.
OTHER INFORMATION
An aqueous concentrated sodium lauryl ether sulfate derived from fatty alcohols, ethoxylated to an average of two moles, and sulfated via continuous SO₃ process.
GENERAL DESCRIPTION OF IONIC SURFACTANTS
Ionic surfactants which contain hydrophobic hydrocarbon group connected with one or several hydrophilic groups dissociate into a positively charged cation and a negatively charged anion in an aqueous solution. If the head is negatively charged to carry the surface active properties, it is called anionic surfactant, whereas a positively charged head is the carrier of the surface active properties in cationic surfactants. Typically cationic surfactants are based on the nitrogen atom carrying the cationic charge such as amine and quaternary ammonium product. Cationic surfactant is considered to be poor cleaners but it contributes to the fabric softening, the disinfecting properties, and the grease-water interfacial tension reducing. Cationic surfactants include quaternary ammonium compounds, amines (primary, secondary, tertiary, diamines, polyamines, amine salts), imidazoline compounds, betaine compounds, and esterquats. Anionic surfactant is the widely used type of surface active agent for laundry detergents, liquid cleaners and shampoos due to excellent cleaning properties particularly effective at oily soil cleaning and oil/clay soil suspension. Anionic surfactants are deactivated in many hard water. To prevent deactivation, builders should be dosed. Anionic surfactant is used as a emulsifier in cosmetics, tooth paste, cream, shampoo, and acrylic binder. Common soap is an anionic surfactant. Carboxylate, sulfate, sulfonate and phosphate are the polar groups in anionic surfactants. Anionic surfactants include alkyl benzene sulfonate, fatty acid salts, sodium lauryl sulfate, alkyl sulfate salts, sodium lauryl ether sulfate, alpha-olefin sulfonates, phosphate esters, sulphosuccinates, alkyl phenol ether sulfates, and isethionates.