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 Tripropylene glycol monobutyl ether?

Tripropylene glycol monobutyl ether è un composto chimico registrato con il numero CAS 55934-93-5. Formula bruta: C13H28O4. Massa molare: 248.36 g/mol. IUPAC: 1-[2-(1-butoxypropoxy)propoxy]propan-1-ol.

Qual è il numero CAS di Tripropylene glycol monobutyl ether?

Il numero CAS di Tripropylene glycol monobutyl ether è 55934-93-5 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Tripropylene glycol monobutyl ether?

Formula bruta: C13H28O4. Massa molare: 248.36 g/mol. logP (XLogP3): 2.9. PSA: 47.9 Å².

Dove acquistare Tripropylene glycol monobutyl ether?

Tripropylene glycol monobutyl ether è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/tripropylene-glycol-monobutyl-ether/

Da dove provengono i dati chimici di Tripropylene glycol monobutyl ether?

I dati chimici di Tripropylene glycol monobutyl ether provengono da fonti autorevoli: PubChem (NIH). PubChem CID: 60196418. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Tripropylene glycol monobutyl ether

Tripropylene glycol n-butyl ether

CAS 55934-93-5 · C₁₃H₂₈O₄ · MW 248.36 g/mol

Informazioni su Tripropylene glycol monobutyl ether

Tripropylene glycol monobutyl ether è un composto chimico registrato con il numero CAS 55934-93-5, con formula bruta C₁₃H₂₈O₄, e massa molare di 248.36 g/mol.

La molecola contiene 45 atomi collegati da 44 legami chimici. Il nome sistematico IUPAC completo di questo composto è 1-[2-(1-butoxypropoxy)propoxy]propan-1-ol. 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 = 2.9 (valore positivo, composto lipofilo), superficie polare PSA = 47.9 Å², 1 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	C₁₃H₂₈O₄
Masa molowa	248.36 g/mol
IUPAC	1-[2-(1-butoxypropoxy)propoxy]propan-1-ol
SMILES	`CCCCOC(CC)OC(C)COC(CC)O`
InChIKey	`RNFAKTRFMQEEQE-UHFFFAOYSA-N`
logP (XLogP3)	2.9
PSA	47.9 Å²
HBD / HBA	1 / 4
PubChem CID	CID 60196418 ↗

Letteratura scientifica

Literatura naukowa

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

📈 Timeline publikacji (7 artykułów)

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

Studies on the interactional behaviour of binary liquid mixtures of tripropylene glycol monomethyl ether and butyl amines at different temperatures

Harsh Kumar, Akanksha (2020) · Journal of Molecular Liquids

Cytowania: 4$ PaywallDOI ↗

Tripropylene Glycol, Methyl Ether 20324‐33‐8

(2004) · Sax's Dangerous Properties of Industrial Materials

$ PaywallDOI ↗

Tripropylene Glycol Monomethyl Ether

(2007) · Hawley's Condensed Chemical Dictionary

$ PaywallDOI ↗

Tripropylene Glycol, Methyl Ether 20324‐33‐8

(2012) · Sax's Dangerous Properties of Industrial Materials

$ PaywallDOI ↗

Viscosity of tripropylene glycol monomethyl ether

Ch. Wohlfarth (2008) · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

Viscosity of the mixture (1) 2-ethoxy-2-methylpropane; (2) tripropylene glycol monomethyl ether

Ch. Wohlfarth (2008) · Landolt-Börnstein - Group IV Physical Chemistry

$ PaywallDOI ↗

Tripropylene Glycol

(2007) · Hawley's Condensed Chemical Dictionary

$ PaywallDOI ↗

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

Fonti dei dati

📊 PubChem CID 60196418 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

Tripropylene glycol monobutyl ether →

Molecole correlate

L-Aspartic acid CAS 56-84-8 · C4H7NO4 L-Tryptophan CAS 73-22-3 · C11H12N2O2 Terephthalic Acid CAS 100-21-0 · C8H6O4 Sorbitol CAS 50-70-4 · C6H14O6 Glycidyl methacrylate CAS 106-91-2 · C7H10O3 L (+)-Tartaric acid CAS 87-69-4 · C4H6O6