Sodium Lauryl Ether Sulphate
CAS Not available
| Product name | Sodium Lauryl Ether Sulphate |
|---|---|
| Synonyms | SLES 70, SLES chemical, sodium laureth sulfate, SLES 28 |
| C.A.S. number | No single CAS - SLES is an ethoxylate and chain-length distribution (a mixture/UVCB), so the CAS quoted is representative. Those in commercial use are: 68891-38-3, sodium C12-14 alkyl ether sulfate, EC 500-234-8 (the identity used by EU producers); 9004-82-4, the generic sodium laureth sulfate / poly(oxyethylene) lauryl ether sulfate sodium salt; and 68585-34-2, sodium C10-16 alkyl ether sulfate. Declare the product as a mixture and mark the CAS as representative - do not publish any one of these as the definitive CAS of the product. |
| Molecular formula | CH3(CH2)11(OCH2CH2)nOSO3Na, with n approximately 2-3 ('2 EO' or '3 EO' grades) - no single molecular formula |
| Molecular weight | Not available (ethoxylate distribution - there is no single molecular weight) |
| Grade supplied against | 70% / 28% active |
| Appearance | 70% active: colourless to pale-yellow viscous paste or gel with a faint soapy odour; producer SDS describe it as a transparent to yellow semi-solid paste. 28% active: Not available from an authoritative source - trade literature describes it as a clear to slightly hazy mobile liquid, which should be confirmed against your own COA before publishing. |
| Product group | Surfactants & Oleochemicals |
| HSN code | 3402 39 00 |
| Country of origin | As stated on the producer’s documents for the lot supplied; confirmed at offer stage |
| Packing | 230 kg drum · IBC |
| Storage | Store at 10-30 degC in a well ventilated place out of direct sunlight, in HDPE or lined containers only - avoid corrodible metals. Protect from frost (the paste gels and becomes unpumpable when cold) and from temperatures above about 35-40 degC (promotes hydrolysis and discolouration). Keep containers closed; recirculate or agitate before use, as the paste can separate on standing. Segregate from acids. |
| S. No. | Test parameter | Specification | Method |
|---|---|---|---|
| 1 | Description | 70% active: colourless to pale-yellow viscous paste or gel with a faint soapy odour; producer SDS describe it as a transparent to yellow semi-solid paste. 28% active: Not available from an authoritative source - trade literature describes it as a clear to slightly hazy mobile liquid, which should be confirmed against your own COA before publishing. | Visual |
| 2 | Identification | Conforms to the substance supplied | Instrumental or chemical test, per method agreed |
| 3 | Assay / grade | 70% / 28% active | Titrimetry or instrumental, per method agreed |
| 4 | Physical state | 70% active: viscous paste/gel, semi-solid at ambient temperature and pourable when warmed. 28% active: liquid. | Visual |
| 5 | Solubility in water | Completely soluble/miscible in water (dilution of the 70% paste is slow and viscosity peaks at intermediate concentrations - add paste to water with good agitation) | Per the test method agreed |
| 6 | pH | 70% active: 6.5-9.5 measured on a 10% aqueous solution at 20 degC (Interchimie); 7.5 measured at 100 g/L (Thames River Chemical). The raw substance is quoted at 7.5-10 on a 1 wt% solution at 20 degC (Chemos). 28% active: Not available - take it from your own COA. Always print the dilution with the number. | Potentiometry on an aqueous suspension |
| 7 | Relative density | 70% active: about 1.1 g/cm3 at 20 degC (Interchimie); 1.03 reported by Thames River Chemical. 28% active: Not available. | Pyknometry or gas displacement |
| 8 | Melting / freezing point | 70% active: pour/melting point below 5 degC (Interchimie) to 10-15 degC (Thames River Chemical). 28% active: Not available. | Thermal analysis |
| 9 | Boiling point | Above 100 degC (Interchimie); 100 degC reported by Thames River Chemical - effectively the boiling point of the water carrier. The surfactant itself decomposes rather than boiling, so there is no true boiling point. | Distillation range |
| 10 | Flash point | Not flammable. Producer SDS give 'greater than 100 degC' or 'no data available' - the product is an aqueous surfactant, not a flammable liquid. | Not applicable — the substance is not combustible |
| 11 | Additional parameters | To the specification agreed before order | As agreed |
Not regulated for transport · Class Not applicable - not a dangerous good under ADR, IMDG, IATA, US DOT or Transport Canada (Interchimie, Chemos and Thames River Chemical SDS all state this) · Packing group Not applicable
Proper shipping name: Not applicable - not a dangerous good
Need this on your own enquiry, or need the producer’s batch certificate of analysis for a consignment? Email the sales desk or see what travels with the load.