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Research draft

carboxylic acid

vr.tr.carboxylic-acid · PHY.MAT

Let an agent handle carboxylic acids by structure, properties, uses and hazards, and give PFAS their regulatory and health context.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle carboxylic acids by structure, properties, uses and hazards, and give PFAS their regulatory and health context.

An organic compound containing a carboxyl group (-COOH), such as acetic acid, fatty acids and amino acids; the registry entry also gathers perfluorinated carboxylic acids (PFCAs), a class of persistent PFAS.

What it is for: Carboxylic acids are everywhere in biology, food and industry.

It can be identify them by structure; use them in synthesis and food; measure them in the environment; regulate hazardous ones such as PFCAs.

Distinguishing features

Carboxyl functional group

Weak acids

Include fatty acids and amino acids

Perfluorinated forms are extremely persistent

What it looks like

Liquids or solids, often with sharp odours; vinegar is dilute acetic acid.

How it is recognised

-COOH group in structures

Names ending in -oic acid

PFCAs such as PFOA

Related models

is a kind of - organic acid

chemical compound

forms - derivatives

esters and salts

includes - PFCAs

PFAS

is part of - amino acids

protein

In practice

Families and kinds

simple acids such as formic and acetic acid

fatty acids

dicarboxylic acids

amino acids

perfluorinated carboxylic acids (PFCAs)

Identifiers

CAS number per compound substances

InChIKey structure hash structures

Standards and regulation

EU REACH restrictions on PFOA and PFCAs

Stockholm Convention listing of PFOA

Drinking water limits for PFAS

Failure modes and hazards

Corrosive concentrated acids

PFAS persistence and health effects

Misidentification

Also called

perfluoroheptanoic acidperfluoropentanoic acidperfluorohexanoic acidperfluoroundecanoic acidperfluorododecanoic acidperfluorooctanoic acidPerfluorotetradecanoic acidperfluorotridecanoic acidPerfluoropentadecanoic acidpotassium biphthalate(3R,5R)-Rosuvastatin7-[3-(4-fluorophenyl)-1-propan-2-yl-2-indolyl]-3,5-dihydroxy-6-heptenoic acidrosuvastatinbiotindehydroglycinatemonensin(−)-ecgonidine(R)-2-(4-chloro-2-methylphenoxy)propanoate(S)-2-(4-chloro-2-methylphenoxy)propanoatemecoprop-p(-)-mecopropcyanoacrylic acidalpha,beta-unsaturated monocarboxylic acidPerfluoropentanoatePerfluorohexanoatePerfluoroundecanoatePerfluorododecanoatePerfluoro-n-[1,2,3,4-13C4]-octanoate ion(1-)5,6,7,8-13C4-Perfluorooctanoic acidPerfluoro-n-[1,2,3,4-13C4]-octanoic acidPerfluorotetradecanoatePerfluorotridecanoatetretinoinhydrogenoxalatearomatic carboxylic acidnitroformic acidphthalate(1-)terephthalate(1-)hydrogen terephthalate ionDL-threo-ritalinic acid-d10

+460

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.carboxylic-acid

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Structure Which acid.

Structure decides properties.

Identity

Name and structure.

Identity

Compound identity.

  1. Which carboxylic acid is it, by name and CAS? provenance
  2. What is its structure? definition

Class

Fatty, amino, perfluorinated.

Class

Subclass.

  1. Which subclass does it belong to? definition
  2. Is it a PFAS? boundary
Properties Acidity and behaviour.

Properties decide use.

Acidity

pKa.

Acidity

Acid strength.

  1. What is its pKa? measurement
  2. How corrosive is it? boundary

Persistence

Environment.

Persistence

Environmental fate.

  1. How persistent is it in the environment? measurement
  2. Does it bioaccumulate? boundary
Uses Applications.

Uses range widely.

Applications

Food, industry.

Uses

Uses.

  1. What is it used for? definition
  2. Are safer alternatives available? action

Food

Additives.

Food

Food additive status.

  1. Is it an approved food additive, with which E number? provenance
  2. At what levels? measurement
Regulation Restrictions and health.

Some acids are strictly regulated.

Restrictions

PFAS rules.

Restrictions

Regulatory restrictions.

  1. Is it restricted or banned, under which regulation? provenance
  2. What limits apply in drinking water? measurement

Health

Exposure.

Health

Health information.

  1. What do health authorities say about exposure? provenance
  2. How can exposure be reduced? action

What the second pass must settle

  • Should PFCAs be split into their own entry?
  • How should PFAS regulatory status be tracked?
  • Should individual acids be instances?
Draft as JSON