FLOPAM AN 905 VHM Equivalent — Very Low Charge Ultra High MW Anionic PAM
FLOPAM AN 905 VHM is the lowest charge entry in the SNF anionic VHM powder table, at ultra high molecular weight. It is the only grade in the nine-column table published with a 150-minute dissolution time and a 10 g/l maximum make-up concentration — both figures are specific to AN 905 and AN 910 in that table, not the range in general. ChinaPAM supplies a low-charge, very-high-molecular-weight anionic PAM powder route for this duty. Our supply grade sits at the low charge band; SNF places AN 905 at very low charge. Confirm fit by jar test on your own water before committing to volume. If your bags read a number above AN 905 in the same range, the [AN 910 equivalent](/products/brand-equivalents/flopam-an-910-equivalent) or [AN 913 VHM equivalent](/products/brand-equivalents/flopam-an-913-vhm-equivalent) page is the correct starting point.
Head-to-Head Comparison
Side-by-side data: Our equivalent vs SNF FLOPAM AN 905 VHM
| Parameter | Our Equivalent | SNF FLOPAM AN 905 VHM |
|---|---|---|
| Type | Anionic PAM powder | Anionic PAM powder |
| Charge Density | Low charge band (adjacent to SNF Very Low) | Very Low (SNF 2007 p.34) |
| Molecular Weight | Very high MW (our scale) | Ultra High (SNF 2007 p.34) |
| Recommended concentration | 1–3 g/L | 5 g/l (SNF 2007 p.34) |
| Maximum concentration | Max 5 g/L | 10 g/l (SNF 2007 p.34) |
| Dissolution time | ≤60 min at working concentration | 150 min at 5 g/l and 25°C (SNF 2007 p.34) |
| Suffix caution | Re-select if suffix is not VHM | AN 905 appears in multiple suffix series; this page covers VHM only |
Specifications
| Our Product | Low-charge, very-high-MW anionic PAM powder — CNfloc 1082 band |
| Positioned Against | SNF FLOPAM AN 905 VHM |
| Type | Anionic (partially hydrolysed polyacrylamide) |
| Their Charge Density | Very Low (SNF published scale, Catalogue 2007 p.34) |
| Their Molecular Weight | Ultra High (SNF published scale) |
| Their Rec. Concentration | 5 g/l (SNF published) |
| Their Max. Concentration | 10 g/l (SNF published — unique in the nine-column table along with AN 910) |
| Their Dissolution Time | 150 min at 5 g/l, 25°C (SNF published — unique in the nine-column table) |
| Our Preparation | 1–3 g/L recommended; max 5 g/L; ≤60 min at working concentration |
Key Features
- Low-charge, very-high-MW anionic PAM supply route confirmed for AN 905 VHM duty
- SNF publishes AN 905 VHM as the sole Very Low charge entry in the nine-column VHM table
- 150-minute dissolution and 10 g/l max concentration are unique to AN 905 (and AN 910) in that table
- Supply grade is adjacent charge band; jar test on your own water confirms fit
- Current TDS and MSDS available; batch-specific COA with every shipment
Applications
- Procurement for processes specifying FLOPAM AN 905 VHM or a very low charge, ultra-high MW anionic powder
- Substitution screening where a buyer-specified AN 905 VHM requires a supply route from an alternative manufacturer
- Process water treatment where the polymer specification calls for minimum charge density at ultra-high chain length
Get a Quote for the SNF FLOPAM AN 905 VHM Equivalent
Tell us the grade you run now and your monthly volume. Quotation with full specifications and batch COA within 24 hours. Free trial sample available so you can confirm performance by jar test before committing.
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What SNF Publishes for AN 905 VHM
The figures below are reproduced from the SNF SAS powder catalogue, Catalogue 2007 Poudres, page 34, covering the FLOPAM AN 900 VHM series. The catalogue prints its own caveat: the data are given for information only and do not constitute a specification. Verify against a current data sheet from SNF or its distributor before use in any contractual context.
AN 905 VHM is the leftmost column in the nine-grade table and the only entry at Very Low charge density. Two figures distinguish it from the other eight grades: a recommended make-up concentration of 5 g/l (all other grades: 3 g/l) and a dissolution time of 150 minutes (all other grades: 90 minutes). Both figures travel together — the 150-minute condition is measured at 5 g/l and 25°C, not at a lower concentration.
AN 910 VHM shares the 5 g/l recommended and 10 g/l maximum concentration but returns to 90 minutes dissolution. This means the longer dissolution time is exclusive to AN 905 in the table, not a shared characteristic of the very low or low charge band.
| Property | AN 905 VHM | AN 910 VHM (next grade) | Rest of table (AN 913–956) |
|---|---|---|---|
| Charge density | Very Low | Low | Low to High |
| Molecular weight | Ultra High | Ultra High | Ultra High |
| Brookfield @5.0 g/l (cps) | 1000 | 1200 | 1500–2000 |
| Brookfield @2.5 g/l (cps) | 400 | 550 | 600–1000 |
| Brookfield @1.0 g/l (cps) | 100 | 170 | 140–350 |
| Recommended concentration | 5 g/l | 5 g/l | 3 g/l |
| Maximum concentration | 10 g/l | 10 g/l | 5 g/l |
| Dissolution time (5 g/l, 25°C) | 150 min | 90 min | 90 min |
| Storage temperature | 0–35°C | 0–35°C | 0–35°C |
| Shelf life | 24 months | 24 months | 24 months |
Our Supply Route and How to Confirm Fit
ChinaPAM supplies a low-charge, very-high-molecular-weight anionic PAM powder (CNfloc 1082 band) for AN 905 VHM duty. SNF describes AN 905 at very low charge; our grade sits at the adjacent low charge band. We do not claim the products are identical or interchangeable without testing.
The right way to confirm fit is a jar test on your own feed water at several dose rates, comparing settling rate and clarity against your current AN 905 VHM supply. Our preparation conditions differ from the SNF published figures: 1–3 g/L recommended, max 5 g/L, dissolution ≤60 min at working concentration. Use your standard make-up procedure and adjust for the different preparation window.
Request a trial sample with your water quality parameters. We will provide current TDS and MSDS plus batch-specific COA. Once the trial confirms performance, we confirm the supply grade and batch availability for production quantities.
Dosage Guide
SNF publishes AN 905 VHM at 5 g/l recommended and 10 g/l maximum make-up concentration, with 150 minutes dissolution at 5 g/l and 25°C (Catalogue 2007 Poudres, page 34). Our preparation parameters for the supply grade are 1–3 g/L recommended and max 5 g/L, dissolution ≤60 min at working concentration. Establish the effective dose on your water by jar test before operating at volume.
Frequently Asked Questions — FLOPAM AN 905 VHM Equivalent — Very Low Charge Ultra High MW Anionic PAM
Do you have a supply route for FLOPAM AN 905 VHM duty?
Yes. ChinaPAM supplies a low-charge, very-high-molecular-weight anionic PAM powder route for AN 905 VHM duty. SNF places AN 905 at very low charge; our supply grade is at the adjacent low charge band. A jar test on your own water is the right way to confirm fit before placing volume orders.
Why does AN 905 VHM have a 150-minute dissolution time when the rest of the table is 90 minutes?
SNF publishes 150 minutes specifically for AN 905 VHM and 90 minutes for the remaining eight grades in the same table (Catalogue 2007 Poudres, page 34). The condition is measured at 5 g/l and 25°C. AN 910 VHM also uses 5 g/l recommended and 10 g/l maximum concentration, but its dissolution time is the same 90 minutes as the rest. The 150-minute figure is unique to AN 905 in this table.
Why is the SNF maximum concentration 10 g/l for AN 905 when other grades in the table are 5 g/l?
SNF publishes 10 g/l maximum (and 5 g/l recommended) for both AN 905 VHM and AN 910 VHM. All other seven grades in the nine-column table are published at 3 g/l recommended and 5 g/l maximum. Our preparation parameters for any grade we supply are 1–3 g/L recommended and max 5 g/L.
Can I use the same dose rate as my current SNF AN 905 VHM supply?
Treat the dose rate as a starting point, not a confirmed value. Charge density differences between very low and low affect bridging behaviour and optimal dose. Run a jar test at several dose rates on your own water to find the effective window before operating at volume.
Does this page apply if my bags say AN 905 with a suffix other than VHM?
No. AN 905 appears in multiple SNF suffix series and the properties differ. The 150-minute dissolution and 10 g/l maximum figures on this page are from the VHM table on page 34 of the SNF Catalogue 2007 Poudres. Check the full grade string on your bags.
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Trademark notice. SNF FLOPAM AN 905 VHM 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 independently manufactured and are not licensed copies. Grade descriptors quoted for third-party products are taken from each manufacturer’s own published literature and follow that manufacturer’s own scale; we do not publish figures those manufacturers do not publish. Performance on your process should be confirmed by jar test or CST test before any change of supply.