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 Sorbitolo?

Sorbitolo è un composto chimico registrato con il numero CAS 50-70-4. Formula bruta: C6H14O6. Massa molare: 182.17 g/mol. IUPAC: (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol.

Qual è il numero CAS di Sorbitolo?

Il numero CAS di Sorbitolo è 50-70-4 — un identificativo univoco del Chemical Abstracts Service (CAS).

Qual è la formula bruta di Sorbitolo?

Formula bruta: C6H14O6. Massa molare: 182.17 g/mol. logP (XLogP3): -3.1. PSA: 121 Å².

Dove acquistare Sorbitolo?

Sorbitolo è disponibile nel nostro negozio. Vedi il prodotto: https://epchems.online/products/sorbitol/

Da dove provengono i dati chimici di Sorbitolo?

I dati chimici di Sorbitolo provengono da fonti autorevoli: PubChem (NIH), ChEMBL (EBI). PubChem CID: 5780. Conformi al Regolamento CLP (CE 1272/2008), disponibili con licenza CC-BY 4.0.

Sorbitolo

CAS 50-70-4 · C₆H₁₄O₆ · MW 182.17 g/mol

Informazioni su Sorbitolo

Sorbitolo è un composto chimico registrato con il numero CAS 50-70-4, con formula bruta C₆H₁₄O₆, e massa molare di 182.17 g/mol.

La molecola contiene 26 atomi collegati da 25 legami chimici. Il nome sistematico IUPAC completo di questo composto è (2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol. 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 = -3.1 (valore negativo, composto idrofilo), superficie polare PSA = 121 Å², 6 donatori e 6 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	C₆H₁₄O₆
Masa molowa	182.17 g/mol
IUPAC	(2R,3R,4R,5S)-hexane-1,2,3,4,5,6-hexol
SMILES	`C([C@H]([C@H]([C@@H]([C@H](CO)O)O)O)O)O`
InChIKey	`FBPFZTCFMRRESA-JGWLITMVSA-N`
logP (XLogP3)	-3.1
PSA	121 Å²
HBD / HBA	6 / 6
PubChem CID	CID 5780 ↗

Letteratura scientifica

Literatura naukowa

8 artykułów · 4 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (8 artykułów)

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

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Mechano-dependent sorbitol accumulation supports biomolecular condensate.

Torrino S, Oldham WM, Tejedor AR et al. (2025) · Cell

Open AccessDOI ↗PubMed ↗PDF ↗

Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.

Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care

Review$ PaywallDOI ↗PubMed ↗

Curación de úlceras venosas crónicas inducida con un hidrogel de aloe vera, sorbitol, alantoína y glicerol.

Ulloa JH, Bravo J, Moreno OY et al. (2022) · Journal of wound care

Review$ PaywallDOI ↗PubMed ↗

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High fat intake sustains sorbitol intolerance after antibiotic-mediated Clostridia depletion from the gut microbiota.

Lee JY, Tiffany CR, Mahan SP et al. (2024) · Cell

Open AccessDOI ↗PubMed ↗PDF ↗

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Intestine-derived sorbitol drives steatotic liver disease in the absence of gut bacteria.

Jackstadt MM, Fowle-Grider R, Song MG et al. (2025) · Science signaling

Open AccessDOI ↗PubMed ↗PDF ↗

Tackling sorbitol intolerance.

Papatriantafyllou M (2024) · Nature reviews. Gastroenterology & hepatology

$ PaywallDOI ↗PubMed ↗

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Host Sorbitol and Bacterial Sorbitol Utilization Promote Clostridioides difficile Infection in Inflammatory Bowel Disease.

Yang Z, Qin J, Zhao L et al. (2023) · Gastroenterology

Open AccessDOI ↗PubMed ↗PDF ↗

Identification of catabolic pathway for 1-deoxy-D-sorbitol in Bacillus licheniformis.

Li Y, Huang H, Zhang X (2022) · Biochemical and biophysical research communications

$ PaywallDOI ↗PubMed ↗

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

Sinonimi

D-Sorbitol · sorbitol · D-Glucitol · 50-70-4 · glucitol · Glucarine · (-)-Sorbitol · Nivitin · Sorbit · D-(-)-Sorbitol · Diakarmon · Sorbilande · Sorbostyl · Esasorb · Multitol

Fonti dei dati

📊 PubChem CID 5780 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Acquista nel negozio

Sorbitol →

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