What the Data for This Category Looks Like
Chemical raw material research report data comes from public industry monitoring databases, periodic reports of listed chemical enterprises, professional trade journals for chemical sub-sectors, and customs import and export data. Update frequency varies by data type. Spot price data is updated daily. Industry supply and demand weekly reports are updated weekly. Annual in-depth research reports are updated quarterly. Document structures typically include raw material grades, CAS numbers, physical and chemical indicators, supply and demand data, price trends, and downstream application proportions. Core fields include purity percentage, inventory volume (ten thousand tons), ex-factory price (yuan per ton), and others. Unit specifications vary by data dimension.
Constraints on Citation Source and Traceability
The unique identifier for chemical raw material research reports is the CAS number. This field must be prioritized for matching. Keywords only serve as auxiliary matching conditions. This prevents traceability deviations caused by different names for the same substance. Unit formats differ across data sources. For example, prices may use yuan per ton or yuan per kilogram. Inventory volumes may use ten thousand tons or tons. Unit normalization must be completed before associated citations can be generated. Research report update cycles vary widely, from daily to quarterly updates. A data collection timestamp must be labeled to avoid citing outdated content. Some documents only list source institutions but omit direct links. Field extraction priority must be configured to obtain traceable identification information.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
RECALL_COUNT | Top 8–12 entries | There are many chemical raw material sub-categories. This range covers monitoring data from different institutions and avoids single-source bias |
SIMILARITY_THRESHOLD | 0.75–0.85 | Chemical raw material terminology is highly specialized. This range balances retrieval precision and coverage to avoid missing detailed indicator data |
PARSE_FIELD_PRIORITY | CAS number > Raw material grade > Ex-factory price | The unique identifier for chemical raw materials is the CAS number. This priority extracts this field as the core traceability basis |
SOURCE_TIMESTAMP_REQUIRE | Enabled | Research report update cycles vary widely. Mandatory labeling of data collection timestamps prevents citing outdated content |
UNIT_NORMALIZATION_SWITCH | Enabled | Chemical raw material data includes multiple unit formats. Unit normalization must be completed before associated citations can be generated |
MAX_REFERENCE_LENGTH | 1500–2000 characters | Chemical raw material research reports contain extensive physical and chemical data. Limiting single citation length ensures clear context |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Errors
- Failing to set
PARSE_FIELD_PRIORITYto prioritize CAS numbers leads to matching similar raw material grades during citation. This prevents accurate matching of the target raw material. Returned content may be unrelated to the query. The root cause is failure to use the unique identifier of chemical raw materials as the core traceability basis. Relying solely on keyword matching causes deviations. - Failing to enable
UNIT_NORMALIZATION_SWITCHleads to ununified units for cited research report data. This results in errors with inconsistent field values. The root cause is that chemical raw material data uses multiple unit formats such as yuan per ton and yuan per kilogram. Lack of normalization processing causes association failures. - Configuring
MATCH_LANGUAGEto Chinese only prevents citation of research report literature containing English CAS numbers after a Chinese query is submitted. The root cause is failure to cover English terminology matching. This makes it impossible to associate English identification content in the knowledge base.
How to Verify Configuration is Properly Set
- Upload one chemical raw material research report document containing a CAS number. Check if the CAS number field is prioritized in the knowledge base parsing results.
- Submit a query containing a specific raw material grade. Verify that each cited entry in returned results includes collection time and source institution.
- Test data sources with different units. Check if numerical values in generated content are unified to the preset unit.
- Submit a Chinese query containing an English CAS number. Verify that relevant research report citations are matched.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.