sucrose
Enable an agent to recognise sucrose, assess the identity and condition of a specific lot, and determine its suitability for a proposed use or transformation.
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.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise sucrose, assess the identity and condition of a specific lot, and determine its suitability for a proposed use or transformation.
Sucrose is a non-reducing disaccharide of molecular formula C12H22O11 in which glucose and fructose are joined through their anomeric carbons by an α-D-glucopyranosyl-(1→2)-β-D-fructofuranoside linkage.
It can be Verify a lot's sucrose identity using complementary analytical evidence.; Compare assay, moisture and impurities against a specified grade and intended use.; Assess dissolution or crystallisation feasibility at a stated temperature and composition.; Determine whether inversion, caking or thermal alteration requires retesting or rejection.; Select storage and transfer conditions using moisture sensitivity, particle form and applicable handling evidence.; Assess a proposed hydrolysis or heating operation against the required chemical outcome..
Distinguishing features
Identity evidence must establish the glucose-fructose disaccharide with the sucrose glycosidic linkage; the molecular formula C12H22O11 alone cannot distinguish it from other disaccharides.
Under suitable test conditions, sucrose behaves as a non-reducing sugar; reducing-sugar results require interpretation for hydrolysis products or other impurities.
Hydrolysis produces glucose and fructose, distinguishing intact sucrose from an already inverted sugar mixture.
Chromatographic identity and condition-controlled optical rotation can distinguish sucrose from glucose, fructose and mixed sweetener samples.
A trade description such as table sugar or brown sugar does not establish chemical purity; water, molasses and additives must be accounted for.
Scope
+ Sucrose molecular identity and differentiation from other sugars and sweeteners
+ Lot composition, assay, impurities, moisture and grade
+ Crystalline, amorphous and dissolved states under recorded conditions
+ Solubility, optical behaviour and thermal behaviour with measurement conditions
+ Hydrolysis, moisture uptake and other changes affecting suitability
+ Handling hazards and jurisdiction-specific identity and use requirements
- Sugar-containing foods, beverages and formulated medicines as complete products
- Sugarcane, sugar beet and other source organisms
- Industrial extraction and refining facilities as production systems
- Human diets, metabolic disorders and individual medical decisions
- Glucose, fructose and invert sugar as independently characterised substances
- Commercial packaging, pricing and distribution operations
Characteristics
- Chemical identity
- Verified molecular structure, formula and stereochemistry Distinguishes sucrose from disaccharide isomers and commercially named sugar mixtures.
- Authoritative identifiers
- CAS number, PubChem CID and EC number linked to checked records Connects the substance to reference data and regulatory records without relying on a trade name.
- Sucrose assay
- Mass percent with as-received or dry basis, method and uncertainty Supports grade assessment and prevents moisture differences from appearing as contradictory purity results.
- Water content
- Mass percent with analytical method Affects effective sucrose content, caking and storage suitability.
- Impurity profile
- Glucose, fructose, ash and relevant contaminants in mass percent or mg/kg Separates incomplete refining, contamination and inversion from acceptable grade variation.
- Physical form
- Crystalline solid, amorphous solid or dissolved sucrose; temperature and pressure recorded Determines handling behaviour and which property measurements apply.
- Particle-size distribution
- Micrometres with distribution metric and test method Influences dissolution, flow, caking and dust generation.
- Solution concentration
- Sucrose mass fraction or g/L at stated temperature; °Bx only with method and matrix qualification Supports dissolution and crystallisation decisions while avoiding confusion between sucrose content and total soluble solids.
- Specific optical rotation
- °·mL·g−1·dm−1 with wavelength, temperature, solvent and concentration convention Provides identity and quality evidence that must be interpreted alongside other optically active sugars.
- Thermal behaviour
- Transition or decomposition temperature in °C with heating rate and method; boiling-point applicability explicitly assessed Prevents a condition-dependent thermal event from being treated as an unconditional processing limit.
- Grade and use eligibility
- Declared food, pharmaceutical, analytical or other grade with specification, jurisdiction and edition Chemical identity alone does not establish suitability for ingestion, formulation or analytical work.
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 17 findings · 28 questions.
Sucrose identity and boundaries Establishes what makes a material sucrose and where sucrose characterisation ends.
Sugar names, shared molecular formulas and mixed commercial materials can conceal different chemical identities.
Molecular recognition
Connects sucrose structure to identifiers and discriminating analytical evidence.
Evidence for intact sucrose
Record evidence for the sucrose linkage and stereochemistry, with authoritative identifiers and analytical methods.
- Which checked reference records establish the structure, CAS number, PubChem CID and EC number for sucrose? provenance
- Which identity tests distinguish this sample from other disaccharides and glucose-fructose mixtures? measurement
Substance and mixture boundary
Separates sucrose itself from solutions, refined sugar products and formulations containing it.
Interpretation of commercial sugar
Record whether the object is a sucrose lot or a mixture whose sucrose component refers to this model.
- Does the supplied name denote sucrose, a sucrose solution or a product containing molasses, additives or other sugars? boundary
- Which properties belong to the sucrose component, and which require a separate model of the whole mixture? boundary
Sucrose lot quality Characterises assay, impurities and the evidence supporting a declared grade.
Lots with the same molecular identity can differ materially in analytical, food and pharmaceutical suitability.
Assay and impurities
Makes composition results interpretable across moisture bases and analytical methods.
Sucrose and non-sucrose fractions
Record sucrose content, water, reducing sugars, ash and use-relevant contaminants without equating apparent sweetness or soluble solids with purity.
- What are the sucrose assay and water content, and are the results reported on a dry or as-received basis? measurement
- How much glucose, fructose, ash and other relevant contamination is present, and what methods and detection limits support those results? measurement
Grade and lot evidence
Links a particular lot to specifications, origin and release evidence.
Qualification for intended use
Treat grade as a supported claim about a lot rather than an inherent property of every sucrose sample.
- Which supplier certificate, sampling record and specification edition support this lot's declared grade? provenance
- Which additional chemical or microbiological checks are required before this lot can serve the intended use? action
Sucrose physical state and processing Relates solid form and solution behaviour to observable handling and processing outcomes.
Sucrose can cake, dissolve or crystallise differently depending on moisture, particle size, temperature and concentration.
Solid form and moisture
Describes crystalline or amorphous material, particle distribution and moisture-associated changes.
Condition of solid sucrose
Record form, particle size, moisture exposure and caking as distinct observations.
- What evidence establishes crystalline or amorphous form, particle-size distribution and current caking condition? measurement
- Which humidity, temperature and packaging conditions preserve the required flow and dissolution behaviour? action
Dissolution and crystallisation
Connects sucrose concentration and solvent conditions to saturation and crystal formation.
Sucrose in solution
Record solvent, temperature, concentration and other solutes before interpreting solubility or refractometric measurements.
- At the recorded temperature and solvent composition, is the solution unsaturated, saturated or supersaturated with respect to sucrose? measurement
- Does the concentration result specifically measure sucrose, or is it a °Bx reading influenced by other dissolved substances? boundary
- What changes in temperature, water content or seeding would achieve the intended dissolution or crystallisation outcome? action
Sucrose transformation and use controls Tracks chemical change and the constraints governing storage, handling and application.
Intact sucrose, inverted material and heat-altered sugar are not interchangeable, and handling decisions depend on form and context.
Inversion and thermal change
Distinguishes hydrolysis and heat-driven changes from reversible physical changes.
Integrity of sucrose during treatment
Record treatment history and evidence of conversion, including conditions needed to interpret thermal measurements.
- What do glucose and fructose measurements show about inversion after exposure to water, acid, enzymes or heat? measurement
- Does a reported thermal temperature describe melting, decomposition or overlapping events, and under what method and heating rate? measurement
- At what conversion or alteration threshold does the material require reclassification, retesting or rejection for the intended use? action
Handling and regulatory context
Connects the supplied form and intended use to current hazard and compliance evidence.
Applicable handling and use constraints
Record the applicable safety data, dust assessment, exposure limits and jurisdiction-specific requirements separately from chemical identity.
- What current supplier and jurisdictional sources establish GHS classification and any applicable occupational exposure limits for this material? provenance
- Does the particle form and proposed transfer operation require combustible-dust or airborne-dust controls? action
- Which food, pharmaceutical or other use requirements apply to this lot in the intended jurisdiction? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Recalled information only; no sources were consulted.
- Verify current compendial requirements, jurisdiction-specific hazard classification and occupational dust exposure limits before operational use.
- Verify measurement conditions and purity when using numerical constants; thermal behaviour is particularly dependent on the measurement method.
- Which of these check these first hold for the sense of sucrose this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Crystalline sucrose
- Amorphous sucrose
- Food-grade sucrose
- Pharmaceutical-grade sucrose
- Analytical-reagent-grade sucrose
- Which of these kinds and varieties hold for the sense of sucrose this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- CAS Registry Number - 57-50-1 - Identifies sucrose as a substance, without specifying grade or purity.
- PubChem CID - 5988 - Compound identifier for sucrose.
- EC number - 200-334-9 - European chemical inventory identifier.
- Which of these identifiers and schemes hold for the sense of sucrose this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Codex Alimentarius Commission CXS 212-1999, Standard for Sugars, specifies requirements for defined commercial sugar products.
- United States Pharmacopeia-National Formulary sucrose monograph provides pharmaceutical compendial requirements.
- European Pharmacopoeia sucrose monograph, issued by the European Directorate for the Quality of Medicines & HealthCare, provides pharmaceutical compendial requirements.
- Which of these standards and regulation hold for the sense of sucrose this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Sweetener and bulking ingredient in foods and beverages.
- Control of texture, crystallization and water activity in confectionery and preserves.
- Pharmaceutical excipient in syrups, coatings and formulations requiring stabilization.
- Fermentation substrate for organisms capable of utilizing sucrose.
- Preparation of density gradients for laboratory separation.
- Which of these real-world use hold for the sense of sucrose this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Molar mass - 342.30 - g/mol
- Apparent melting temperature with decomposition - Approximately 185-186; depends on heating conditions - °C
- Solubility in water at approximately 20 °C - Approximately 200 - g per 100 g water
- Specific optical rotation at approximately 20 °C using the sodium D line - Approximately +66.5 in aqueous solution - °·mL·g−1·dm−1
- Which of these typical measurements hold for the sense of sucrose this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Finely divided sugar dust can form combustible, potentially explosive mixtures with air.
- Acid or invertase hydrolyses sucrose into glucose and fructose, changing sweetness, reducing-sugar content and crystallization behaviour.
- Heating causes degradation and caramelization; sucrose decomposes before a useful normal boiling point can be measured.
- Moisture uptake and subsequent crystallization can cause caking or destabilize amorphous formulations.
- Dilute aqueous solutions can support microbial growth; dry sucrose and concentrated syrups behave differently.
- Which of these failure modes and hazards hold for the sense of sucrose this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Food and pharmaceutical acceptance depends on the applicable jurisdiction, compendium and product grade.
- Cane and beet are major commercial sources; their relative importance varies geographically, but purified sucrose has the same chemical identity.
- Which of these regional variation hold for the sense of sucrose this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Glucose - Glucose is a reducing monosaccharide; sucrose contains glucose and fructose residues and is non-reducing.
- Fructose - Fructose is a monosaccharide constituent of sucrose, rather than the linked disaccharide.
- Lactose - Lactose comprises galactose and glucose and retains a reducing end.
- Invert sugar - Invert sugar is a mixture of glucose and fructose produced by sucrose hydrolysis.
- Table sugar - Table sugar is a commercial product composed predominantly of sucrose; its specifications and possible additives distinguish it from the pure substance.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of sucrose this model covers, and on what evidence? provenance
What the second pass must settle
- Which authoritative identity records and analytical references should anchor the identifiers and acceptance tests in the researched publication?
- Which condition-specific reference values should be adopted for solubility, specific optical rotation and thermal behaviour, and how should boiling-point inapplicability be documented?
- Which grade specifications and jurisdictions must the model support first, including impurity and microbiological acceptance criteria?
- What evidence establishes applicable GHS classifications, exposure limits and dust-handling requirements for the supplied forms?
- Which validated criteria distinguish acceptable moisture uptake or inversion from deterioration requiring retesting, rejection or treatment as a separate mixture?