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 Triisobutyl Phosphate?

Triisobutyl Phosphate è un composto chimico registrato con il numero CAS 126-71-6. Formula bruta: C12H27O4P. Massa molare: 266.31 g/mol. IUPAC: tris(2-methylpropyl) phosphate.

Qual è il numero CAS di Triisobutyl Phosphate?

Il numero CAS di Triisobutyl Phosphate è 126-71-6 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Triisobutyl Phosphate?

Formula bruta: C12H27O4P. Massa molare: 266.31 g/mol. logP (XLogP3): 3.5. PSA: 44.8 Å².

Quali sono i pericoli GHS di Triisobutyl Phosphate?

Secondo la classificazione GHS, Triisobutyl Phosphate deve riportare le seguenti indicazioni di pericolo: H317 (Può provocare una reazione allergica cutanea.).

Dove acquistare Triisobutyl Phosphate?

Triisobutyl Phosphate è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/triisobutyl-phosphate/

Da dove provengono i dati chimici di Triisobutyl Phosphate?

I dati chimici di Triisobutyl Phosphate provengono da fonti autorevoli: PubChem (NIH), ChEMBL (EBI). PubChem CID: 31355. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Triisobutyl Phosphate

CAS 126-71-6 · C₁₂H₂₇O₄P · MW 266.31 g/mol

Informazioni su Triisobutyl Phosphate

Triisobutyl Phosphate è un composto chimico registrato con il numero CAS 126-71-6, con formula bruta C₁₂H₂₇O₄P, e massa molare di 266.31 g/mol.

La molecola contiene 44 atomi collegati da 43 legami chimici. Il nome sistematico IUPAC completo di questo composto è tris(2-methylpropyl) phosphate. 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, il coefficiente di ripartizione logP = 3.5 (valore positivo, composto lipofilo), superficie polare PSA = 44.8 Å², 0 donatori e 4 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	C₁₂H₂₇O₄P
Masa molowa	266.31 g/mol
IUPAC	tris(2-methylpropyl) phosphate
SMILES	`CC(C)COP(=O)(OCC(C)C)OCC(C)C`
InChIKey	`HRKAMJBPFPHCSD-UHFFFAOYSA-N`
logP (XLogP3)	3.5
PSA	44.8 Å²
HBD / HBA	0 / 4
PubChem CID	CID 31355 ↗

Sicurezza GHS

Sygnał: Uwaga

GHS07

H317 — Może powodować reakcję alergiczną skóry

Letteratura scientifica

Literatura naukowa

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

📈 Timeline publikacji (2 artykułów)

Wysokość słupka = liczba artykułów w roku. Hover dla szczegółów.

Tri-isobutylphosphate: a prenatal toxicity study in rats.

Ruckman SA, Green OP, Palmer AK et al. (1999) · Toxicology letters

$ PaywallDOI ↗PubMed ↗

ChemInform Abstract: NOVEL TRANSIENT TIN‐CENTERED RADICAL TRIS‐(2‐PHENYL‐2‐METHYLPROPYL)STANNYL

H. U. BUSCHHAUS, M. LEHNIG, W. P. NEUMANN (1977) · Chemischer Informationsdienst

$ 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

TRIISOBUTYL PHOSPHATE · 126-71-6 · Tri-isobutylphosphate · Phosphoric acid, tris(2-methylpropyl) ester · Phosphoric acid, triisobutyl ester · 6MKE1AR3GB · NSC-62222 · DTXCID6020698 · RefChem:190784 · 204-798-3 · tris(2-methylpropyl) phosphate · Isobutyl phosphate · tri-isobutyl phosphate · Phosphoric acid tris(2-methylpropyl) ester · MFCD00039849

Fonti dei dati

📊 PubChem CID 31355 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

Triisobutyl Phosphate →

Molecole correlate

Trichloroethylene CAS 127-18-4 · C2Cl4 Diethylene glycol monohexyl ether CAS 112-59-4 · C10H22O3 Isopropyl alcohol CAS 67-63-0 · C3H8O Sodium cyanide CAS 143-33-9 · CNNa 1,2-Propylene Diacetate (PGDA) CAS 623-84-7 · C7H12O4 L-Tryptophan CAS 73-22-3 · C11H12N2O2