Superfloc C-491 K Equivalent — Very-Low-Charge Very-High-MW Cationic PAM Two-Axis Screening
ChinaPAM accepts a confirmed Superfloc C-491 K enquiry. The very-low charge plus very-high MW combination is unusual — no single ChinaPAM cationic grade simultaneously matches both axes. ChinaPAM opens the enquiry with two orthogonal bracket anchors — C8008 for charge alignment and C8055 for MW alignment — and closes the route by running both on the same representative material. Send the full label with the K suffix as printed, and ChinaPAM will quote the two-anchor bracket and discuss sample arrangements.
Supply Route Comparison
Published reference data and the ChinaPAM route for Superfloc C-491 K
SUPERFLOC is a trademark of Kemira and/or its affiliates. ChinaPAM is an independent manufacturer and is not affiliated with, endorsed by, licensed by or a distributor for Kemira. The grade name is used only to identify the product a buyer is comparing. The primary source is Kemira de Mexico PDS PS-2013-ES-0310 (PDF metadata 2010-03-09) and Kemira Oyj TDS PS-D0047-EN (2015-05) — both are historical documents, not current brand-owner specifications. Our products are separately branded ChinaPAM grades and are not licensed copies.
| Parameter | ChinaPAM Supply Route | Superfloc C-491 K |
|---|---|---|
| Ionic type / form | Cationic PAM powder; grade selected by two-axis trial after intake | White granular cationic polyacrylamide — Kemira Mexico PDS PS-2013-ES-0310 |
| Charge position | C8008 low-charge anchor on the ChinaPAM scale; C8055 is very-high-charge (MW anchor only) | Very Low relative charge — Kemira Mexico PDS PS-2013-ES-0310, C-491 K column |
| Molecular weight | C8055 very-high-MW anchor on the ChinaPAM scale; C8008 medium-MW (charge anchor only) | Very High — Kemira Mexico PDS PS-2013-ES-0310, C-491 K column |
| Bulk density | Confirmed against the quoted ChinaPAM grade at quotation | 0.72 kg/L — Kemira Mexico PDS, C-491 K column; historical PDS value |
| Viscosity ladder | Confirmed by make-down concentration test with the quoted grade | 40/100/300/1000 cP at 0.10%/0.25%/0.50%/1.00% — Kemira Mexico PDS, K column; historical indicative values |
| Source document | Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment. | Kemira Mexico PDS PS-2013-ES-0310 (PDF metadata 2010-03-09); Kemira Oyj TDS PS-D0047-EN 2015-05 for series context only |
Specifications
| Incumbent Model | Superfloc C-491 K (K suffix mandatory; C-491 HMW is a separate column in the 2010 Mexico PDS with different values; the relationship of unsuffixed C-491 from the 2015 Oyj TDS to C-491 K is not established by held evidence) |
| Ionic Type | White granular cationic polyacrylamide — Kemira Mexico PDS PS-2013-ES-0310 |
| Series | C-490 HMW dry cationic PAM series — Kemira Mexico PDS PS-2013-ES-0310 |
| Charge Band (K column) | Very Low — Kemira Mexico PDS PS-2013-ES-0310, C-491 K column |
| MW Band (K column) | Very High — Kemira Mexico PDS PS-2013-ES-0310, C-491 K column |
| Bulk Density (K column) | 0.72 kg/L — Kemira Mexico PDS PS-2013-ES-0310; historical PDS value |
| Solution pH (K column) | 3.0–5.0 at 0.5% — Kemira Mexico PDS PS-2013-ES-0310 |
| Viscosity Ladder (K column) | 40 / 100 / 300 / 1000 cP at 0.10% / 0.25% / 0.50% / 1.00% — historical PDS indicative values |
| Document Note | PDS number PS-2013-ES-0310; PDF metadata date 2010-03-09 — not a 2013 edition |
| ChinaPAM Charge Anchor | C8008 — low-charge, medium-MW cationic powder; anchors the charge alignment axis |
| ChinaPAM MW Anchor | C8055 — very-high-MW, very-high-charge cationic powder; anchors the MW alignment axis |
| Route Boundary | Two-axis grade-selection screening — neither anchor is a drop-in; route decided by same-material trial |
Key Features
- Very-low charge and very-high MW combination documented in an exact C-491 K column of a Kemira Mexico PDS
- K suffix kept separate: C-491 HMW is a different column with different charge and viscosity values in the same 2010 Mexico PDS; the unsuffixed C-491 from the 2015 Kemira Oyj TDS is a later source version — the held evidence does not establish whether that entry is the same model as C-491 K or a different model
- Document number PS-2013-ES-0310 and PDF metadata date 2010-03-09 preserved as distinct fields; not a 2013 edition
- Two orthogonal bracket anchors: C8008 covers the charge axis and C8055 covers the MW axis
- Concentration-ladder viscosity values available from the K column for make-down baseline comparison
- The K suffix identifies a specific column in the 2010 Mexico PDS; it must be confirmed on the label before the route opens
- No single ChinaPAM grade matches both axes simultaneously — two-axis grade-selection screening closes the route by measured performance
Applications
- Solid-liquid separation and water clarification duty where very-low-charge very-high-MW cationic PAM powder is the confirmed incumbent — C-490 series context per Kemira Mexico PDS
- Procurement matching a confirmed Superfloc C-491 K purchase requirement with K suffix on the bag
- Two-axis bracket trials where the very-low charge and very-high MW positions must each be anchored separately before a route is selected
Get a Quote for Superfloc C-491 K Alternative Supply
Send the full label with the K suffix as printed — or a photo of the bag. Confirm the K is present; do not drop it or substitute HMW. That is enough to open the enquiry.
Related Articles
Supply answer: two orthogonal bracket anchors, route selected by trial
ChinaPAM accepts a Superfloc C-491 K enquiry and screens two bracket anchors. C8008 anchors the low-charge axis — it is the closest ChinaPAM cationic grade to the very-low charge position, though at medium rather than very-high MW. C8055 anchors the very-high-MW axis — it matches the MW description, though at very-high rather than very-low charge. Neither anchor is named as a drop-in or primary equivalent; the route is decided by running both on the same representative material and selecting the grade whose combined charge/MW response best matches the duty.
No single current ChinaPAM grade matches both very-low charge and very-high MW simultaneously. Naming one grade before the trial would be guessing at the dominant axis.
Price, stock and lead time belong to the quotation and are not stated from the source documents.
Source document: document number, PDF date and version boundaries
The primary source is the Kemira de Mexico PDS with document number PS-2013-ES-0310 and a PDF metadata date of 2010-03-09. The document number is an internal classification string, not a 2013 publication year. The PDF metadata establishes the creation date as 2010-03-09. Calling it a "2013 edition" would be wrong.
A later Kemira Oyj TDS bundle (PS-D0047-EN, 2015-05) provides broader C-490 series context. That bundle includes an unsuffixed C-491 column which may differ from the exact K column in the 2010-era Mexico PDS. The two source versions are kept separate; fields from the 2015 bundle are not back-filled into the K column without explicit attribution.
K must also be kept separate from C-491 HMW, which appears in the same 2010 PDS as a different column with different charge and MW values.
Three facts the sources actually establish
Each fact is tied to the Kemira Mexico PDS and a specific page/column locator.
| Fact | Source and locator | What it does not establish |
|---|---|---|
| Kemira Mexico PDS PS-2013-ES-0310 lists Superfloc C-491 K in the C-490 HMW dry cationic series as white granular cationic polyacrylamide. | Kemira de Mexico PDS PS-2013-ES-0310; PDF pages 1–2; title and C-491 K column. | Does not establish current availability or current Kemira specification. |
| The exact C-491 K column gives Very Low relative charge, Very High molecular weight, bulk density 0.72 kg/L, pH 3.0–5.0 at 0.5%. | Kemira de Mexico PDS PS-2013-ES-0310; PDF page 2; C-491 K column. | Historical PDS values from 2010; not verified as current brand-owner specification. |
| The C-491 K viscosity values are 40 / 100 / 300 / 1000 cP at 0.10% / 0.25% / 0.50% / 1.00% respectively. | Kemira de Mexico PDS PS-2013-ES-0310; PDF page 2; C-491 K column. | Historical typical PDS values at listed concentrations; not ChinaPAM specifications and not current brand-owner specifications. |
Two failure modes and the check that catches each one
Both arise from suffix conflation or single-axis route selection without a trial.
| Trigger | Consequence | Verification step |
|---|---|---|
| C-491 K is merged with C-491 HMW or the later unsuffixed C-491 because the base number matches. | A different charge position or document version is used for the quote and trial, producing a mismatched screening bracket. | Require the complete K suffix and the current issuer document. Do not transfer fields across suffix columns or across the 2010 Mexico PDS and the 2015 Oyj TDS without explicit attribution. |
| A single ChinaPAM grade is declared equivalent by matching only the charge axis or only the MW axis. | Charge neutralisation, bridging and sludge response can diverge even when one descriptor matches; the route can over-neutralise or under-bridge. | Use C8008 as the low-charge anchor and C8055 as the very-high-MW anchor in a controlled two-axis bracket. Close the route from measured floc, drainage and cake results on the same feed, not from single-axis band alignment alone. |
Intake, trial design and acceptance metrics
Useful intake: full C-491 K label with K suffix as printed; current TDS or SDS if the buyer holds one; sludge or suspension type; solids percentage; pH; conductivity; incumbent active dose; dewatering or thickening equipment; and the clarity, cake and throughput targets.
ChinaPAM powder preparation runs at a 1–3 g/L recommended window, 5 g/L maximum, and no longer than 60 minutes at working concentration. Preparation concentration is not process dosage.
Solution-preparation records to carry through the trial: wetting time after powder contact with water, full maturation period before dilution to working concentration, solution age at the point of application, and actual transfer equipment and conditions. Establish the incumbent active-polymer basis from a current applicable issuer document, TDS, COA or batch record; if that documentation is unavailable, run and record a dose-response ladder without claiming active-mass equivalence. Do not prescribe a pump type or analytical method without a locked source applicable to C-491 K.
Run the trial across at least one representative normal-feed condition and at least one adverse-feed condition (higher solids, off-spec pH or a seasonal feed change). Use identical mixing and measurement windows for every run across the bracket.
Pre-agreed acceptance metrics before the first jar: capture; centrate or filtrate clarity; cake or underflow solids; active dose; throughput; floc shear tolerance and pumpability.
No-go rule: if both C8008 and C8055 fail performance and operability targets on the same feed across the full dose ladder, widen the formulation screening rather than forcing one anchor against a changed target. Close the route only from measured floc, drainage and cake results on the same feed. Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment.
Brand Equivalents & Replacements
ChinaPAM accepts a confirmed Superfloc C-491 K enquiry and screens two bracket anchors. C8008 (low-charge, medium-MW) anchors the charge axis; C8055 (very-high-MW, very-high-charge) anchors the MW axis. No single grade simultaneously matches both the very-low charge and very-high MW positions. The K suffix is mandatory — C-491 HMW is a separate column in the 2010 Mexico PDS with different charge and viscosity values; the relationship of unsuffixed C-491 from the 2015 Kemira Oyj TDS to C-491 K is not established by the held evidence, so those entries must not be treated as equivalent without a current issuer document linking them.
| Brand | Grade | Notes |
|---|---|---|
| Kemira Superfloc | C-491 K | Kemira Mexico PDS PS-2013-ES-0310 (PDF metadata 2010-03-09): C-490 HMW dry cationic series; white granular; Very Low charge; Very High MW; bulk density 0.72 kg/L; pH 3.0–5.0 at 0.5%; viscosity 40/100/300/1000 cP at 0.10%/0.25%/0.50%/1.00%. K suffix is mandatory. ChinaPAM route: two-axis bracket — C8008 (charge anchor) and C8055 (MW anchor). Two-axis grade screening; no single drop-in named. |
Need a replacement for a different grade? Contact us with your current product specs.
Frequently Asked Questions — Superfloc C-491 K Equivalent — Very-Low-Charge Very-High-MW Cationic PAM Two-Axis Screening
Can ChinaPAM supply for a Superfloc C-491 K requirement?
Yes — as two-axis grade-screening support. ChinaPAM opens the enquiry with C8008 as the charge anchor and C8055 as the MW anchor, then closes the route by running both on the same representative material. Send the full K-suffix label and the enquiry opens.
Why is no single ChinaPAM grade pre-named as equivalent to C-491 K?
Because the Kemira Mexico PDS specifies very-low charge and very-high MW simultaneously, and no single current ChinaPAM grade matches both axes at once. Declaring one grade equivalent by matching only one axis risks charge mismatch or MW mismatch on the actual duty.
Is the PDS document number PS-2013-ES-0310 a 2013 edition?
No. PS-2013-ES-0310 is an internal document classification number. The PDF metadata date is 2010-03-09, establishing the document as a 2010-era source. Calling it a 2013 edition would misrepresent the source date.
Is C-491 K the same as C-491 HMW or as an unsuffixed C-491?
These are different cases. C-491 HMW is a separate column in the same 2010 Mexico PDS — it has different charge and viscosity values from C-491 K and is not the same product. A later Kemira Oyj TDS bundle (2015) contains an unsuffixed C-491; the held evidence does not establish whether that unsuffixed entry is the same model as C-491 K. Without a current issuer document explicitly linking unsuffixed C-491 to C-491 K, it must not be treated as the same model. Keep the K suffix and its exact source column isolated.
What do C8008 and C8055 actually represent?
C8008 is the closest ChinaPAM cationic grade to the low-charge side of the K column — it anchors the charge axis. C8055 is the closest to the very-high-MW side — it anchors the MW axis. Both are bracket anchors for the trial, not pre-declared equivalents.
What is confirmed in the quotation, and what is not stated here?
Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment.
Trademark notice. Superfloc C-491 K and all other third-party product and brand names on this page are trademarks or registered trademarks of their respective owners. Henan Jinghua New Material Technology Co., Ltd. is not affiliated with, endorsed by, sponsored by or authorised by those owners, and no such relationship is implied. Those names are used here for the sole purpose of identifying the products our grades are compared against, which is necessary to describe what we supply. Our products are separately branded ChinaPAM grades and are not licensed copies. Third-party facts on this page are attributed separately to the historical Kemira de Mexico PDS and Kemira Oyj TDS context, with issuer, date and suffix scope preserved; the records are not presented as current specifications. Performance on your process should be confirmed by jar test or CST test before any change of supply.