How do you make linear alkyl benzene sulphonate?
LABSA (Linear Alkyl Benzene Sulphonic Acid) is produced by the sulphonation reaction of Alkyl Benzene with Sulphur trioxide (SO). Some other processes might desire the use of Oleum or Sulphuric acid.
How is LABSA made?
LABSA is produced by the sulfonation of LAB with sulphuric acid in batch reactors. Other sulfonation alternative reagents are oleum, diluted sulfur trioxide, chlorosulfonic acid and sulfamic acid on falling film reactors.
What is the formula of alkyl benzene?
Linear alkylbenzene is a family of organic compounds with the formula C6H5CnH2n+1. Typically, n lies between 10 and 16, although generally supplied as a tighter cut, such as C12-C15, C12-C13 and C10-C13, for detergent use. [1] The CnH2n+1 chain is unbranched. They are sometimes called LABs.
What is linear alkyl benzene sulphonate?
Linear alkylbenzene sulfonate (LAS), the world’s largest-volume synthetic surfactant, which includes the various salts of sulfonated alkylbenzenes, is widely used in household detergents as well as in numerous industrial applications. The LABSA market is driven by the markets for LAS, primarily household detergents.
Which of the following is for the manufacture of linear alkyl benzene?
The resulting linear mono-olefins react with benzene in the presence of a catalyst to produce the LABs. Hydrogen fluoride (HF) and aluminium chloride (AlCl3) are the two major catalysts for the alkylation of benzene with linear mono-olefins.
What is the formula of acid slurry?
Acid Slurry: –
| Active Matter As Alkyl BenzeneSulphonic Acid,Percent By Mass , Min | 88 + 1% |
|---|---|
| Formula | Ch3(Ch2)11c6h4so3h |
| Mol Wt. | 326.49 |
| Toxicity | Oral Rat Ld50: 650 Mg/Kg |
| Derivation | Linear Alkylbenzene, S |
What is sulfonation process?
The air/SO3 sulfonation process is a direct process in which SO3 gas is diluted with very dry air and reacted directly with the organic feedstock. The source of the SO3 gas may be either liquid SO3 or SO3 produced by burning sulfur.
What is the chemical formula of Labsa?
LABSA GALAXY Chemical formula is CH3 (CH2) 11C6H4SO3H, which is generally a chemical in the colloid gel phase. It can be biodegradable without damaging the environment. The starting material is LAB (linear alkylbenzene). Labsa content in a product is approached to 20% in a product, nowadays it has fallen to 8-10%.
How is benzene distinguished from alkyl benzene?
As nouns the difference between benzene and alkylbenzene is that benzene is benzene (aromatic compound) while alkylbenzene is (organic chemistry) any hydrocarbon formally derived from benzene by replacing one or more hydrogen atoms with alkyl groups.
What is LABs in detergent?
Linear alkylbenzenes (sometimes also known as LABs) are a family of organic compounds with the formula C6H5CnH2n+1. The CnH2n+1 chain is unbranched. They are mainly produced as intermediate in the production of surfactants, for use in detergent.
Why are linear alkyl sulfonates better for the environment than branched alkylbenzene sulfonates?
Environmental fate The salt of the linear material has an LD 50 of 2.3 mg/liter for fish, about four times more toxic than the branched compound; however the linear compound biodegrades far more quickly, making it the safer choice over time.
How are linear alkylbenzene sulfonates prepared in the lab?
Linear alkylbenzene sulfonates. Linear alkylbenzene sulfonates (LAS) are prepared industrially by the sulfonation of linear alkylbenzenes (LABs), which can themselves be prepared in several ways. In the most common route benzene is alkylated by long chain monoalkenes (e.g. dodecene) using hydrogen fluoride as a catalyst.
When was branched alkylbenzene sulfonates first introduced to the market?
Branched alkylbenzene sulfonates (BAS) were first introduced in the early 1930s and saw significant growth from the late 1940s onwards, in early literature these synthetic detergents are often abbreviated as syndets.
What kind of surfactant is alkylbenzene tail group?
Alkylbenzene sulfonates. Alkylbenzene sulfonates are a class of anionic surfactants, consisting of a hydrophilic sulfonate head-group and a hydrophobic alkylbenzene tail-group. Along with SLES they are one of the oldest and most widely used synthetic detergents and may be found in numerous personal-care products ( soaps, shampoos,…
Which is a better alkylbenzene Bas or Las?
Thus, the alkylation of linear alkenes, even 1-alkenes such as 1-dodecene, gives several isomers of phenyldodecane. Under ideal conditions the cleaning power of BAS and LAS is very similar, however LAS performs slightly better in normal use conditions, due to it being less affected by hard water.