Does BMA mean n-butyl methacrylate or isobutyl methacrylate?

In most commercial usage the bare abbreviation means the normal isomer, n-butyl methacrylate, CAS 97-88-1. The branched isomer, isobutyl methacrylate, is a different substance with its own identifiers and a different contribution to copolymer hardness, and the tertiary isomer is different again. Because all three are abbreviated loosely in day-to-day correspondence, an order written as BMA alone is ambiguous. Write the full chemical name and the CAS number on every enquiry, purchase order and goods-inwards record.

Why must the monomer not be blanketed with pure nitrogen?

Because the stabiliser used in commercial methacrylate monomers requires dissolved oxygen to function. It intercepts radicals by a mechanism that consumes oxygen, so a drum stripped of oxygen contains an inhibitor that is chemically present and functionally absent. The correct headspace is air, or air diluted with nitrogen to a specified oxygen content, never an inert blanket. This is one of the very few cases in a chemical store where displacing oxygen makes a material more dangerous rather than less, and it catches people whose instinct is trained on flammable solvents.

How should inhibitor content be read on a certificate?

As a starting condition rather than a permanent property. The certificate reports the inhibitor level at release; that level falls in storage as the stabiliser does its job, and it falls faster in warm conditions, in light and in the presence of contamination. A long-stored drum can meet its original certificate on every other line while having very little inhibitor left. Where storage has been long or uncertain, retest the inhibitor level before charging a reactor rather than relying on the release figure.

What is popcorn polymerisation and why does it matter here?

It is a self-propagating, expanding polymer growth that forms in dead legs, vapour spaces, valve bonnets and residues where inhibitor cannot reach. Once seeded it continues under conditions that would not start a normal polymerisation, and it grows mechanically enough to jam valves and distort equipment. The controls are housekeeping controls: no unswept dead legs, no long-standing residues, no lines left full between campaigns, and clean vessels before refilling. It is not a reason to avoid methacrylate monomers, but it is a reason to design the pipework as if the monomer were reactive, because it is.

How does the butyl ester change a copolymer compared with the methyl one?

The four-carbon ester side chain is flexible and bulky, so it loosens chain packing and lowers the temperature at which the polymer softens. Against the methyl ester it gives a softer, more flexible and more extensible polymer, better adhesion and easier film formation, at the cost of hardness and block resistance. Against the corresponding acrylate it gives a harder polymer with the weathering advantage of the methacrylate backbone. Formulators use it as the soft component of an all-methacrylate system, which keeps the durability while tuning flexibility.

Che cos'è Sodium Dodecyl Sulfonate (SDS)?

Sodium Dodecyl Sulfonate (SDS) è un composto chimico registrato con il numero CAS 2386-53-0. Formula bruta: C12H25NaO3S. Massa molare: 272.38 g/mol. IUPAC: sodium dodecane-1-sulfonate.

Qual è il numero CAS di Sodium Dodecyl Sulfonate (SDS)?

Il numero CAS di Sodium Dodecyl Sulfonate (SDS) è 2386-53-0 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Sodium Dodecyl Sulfonate (SDS)?

Formula bruta: C12H25NaO3S. Massa molare: 272.38 g/mol. PSA: 65.6 Å².

Dove acquistare Sodium Dodecyl Sulfonate (SDS)?

Sodium Dodecyl Sulfonate (SDS) è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/sodium-dodecyl-sulfonate/

Da dove provengono i dati chimici di Sodium Dodecyl Sulfonate (SDS)?

I dati chimici di Sodium Dodecyl Sulfonate (SDS) provengono da fonti autorevoli: PubChem (NIH), ChEMBL (EBI). PubChem CID: 23665726. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Sodium Dodecyl Sulfonate (SDS)

Sodium laurylsulfonate

CAS 2386-53-0 · C₁₂H₂₅NaO₃S · MW 272.38 g/mol

Informazioni su Sodium Dodecyl Sulfonate (SDS)

Sodium Dodecyl Sulfonate (SDS) è un composto chimico registrato con il numero CAS 2386-53-0, con formula bruta C₁₂H₂₅NaO₃S, e massa molare di 272.38 g/mol.

La molecola contiene 42 atomi collegati da 41 legami chimici. Il nome sistematico IUPAC completo di questo composto è sodium dodecane-1-sulfonate. Il modello 3D interattivo qui sopra permette di visualizzare la disposizione spaziale degli atomi — puoi ruotarlo con il mouse, zoomare con la rotellina e passare tra le modalità di visualizzazione scheletro / Ball & Stick / Space Fill.

Dal punto di vista delle proprietà chimico-fisiche, superficie polare PSA = 65.6 Å², 0 donatori e 3 accettori di legami a idrogeno. Questi parametri sono fondamentali per valutare la biodisponibilità e l'interazione con le biomolecole.

I dati chimici di questo composto provengono da PubChem (NIH NLM NCBI), uno dei più grandi database chimici al mondo. Tutte le informazioni sono aggiornate automaticamente e arricchite con le traduzioni delle indicazioni di pericolo GHS conformi al Regolamento CLP (CE 1272/2008). Il widget qui sopra può essere utilizzato per scopi educativi, di ricerca e commerciali.

Proprietà chimico-fisiche

Wzór sumaryczny	C₁₂H₂₅NaO₃S
Masa molowa	272.38 g/mol
IUPAC	sodium dodecane-1-sulfonate
SMILES	`CCCCCCCCCCCCS(=O)(=O)[O-].[Na+]`
InChIKey	`DAJSVUQLFFJUSX-UHFFFAOYSA-M`
logP (XLogP3)	—
PSA	65.6 Å²
HBD / HBA	0 / 3
PubChem CID	CID 23665726 ↗

Letteratura scientifica

Literatura naukowa

1 artykułów · 0 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

Dodecyl Sodium Sulfonate

$ PaywallDOI ↗

Dane z PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary wygenerowane przez Semantic Scholar TLDR. Artykuły z ikoną wymagają płatnego dostępu.

Sinonimi

2386-53-0 · Sodium 1-dodecanesulfonate · Sodium laurylsulfonate · 1-Dodecanesulfonic acid, sodium salt · Sodium dodecane-1-sulphonate · Laurylsulfonic Acid Sodium Salt · 4GY1KJW8SI · sodium dodecanesulfonate · 1-Dodecanesulfonic acid, sodium salt (1:1) · sodium n-dodecylsulfonate · EINECS 219-200-6 · SODIUM DODECYLSULFONATE · DODECYL SODIUM SULFONATE · DODECYLSULFONIC ACID SALT · DODECANESULFONIC ACID, SODIUM SALT

Fonti dei dati

📊 PubChem CID 23665726 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

Sodium Dodecyl Sulfonate (SDS) →

Molecole correlate

Trichloroethylene CAS 79-01-6 · C2HCl3 Epichlorohydrin CAS 106-89-8 · C3H5ClO Triethylene Diamine CAS 280-57-9 · C6H12N2 Phthalic anhydride (MA) CAS 85-44-9 · C8H4O3 Diethylene glycol dimethyl ether CAS 110-71-4 · C4H10O2 Methyl methacrylate (MMA) CAS 80-62-6 · C5H8O2