

Sodium Hexametaphosphate (SHMP)
Sodium Hexametaphosphate (SHMP / 六偏磷酸钠) is a kaolin dispersant (deflocculant). It helps liberate and disperse iron so a magnetic separator can capture iron more effectively, achieving higher whiteness on kaolin and ceramic slurry/glaze lines. Bag label: P₂O₅ 68% MIN; N.W. 25.0 kg; G.W. 25.1 kg; Made in China. Example COA (批号 GH20260622, HG/T2519-2017, 合格 / Qualified): total phosphate as P₂O₅ 68.1% (standard 68%), water-insoluble 0.03% (≤0.04), pH 6.1 (5.8–7.0), Fe 0.04% (≤0.05), inactive phosphate as P₂O₅ 6.5% (≤7.5), solubility 合格, appearance 白色粉末或颗粒. Quotation by inquiry — no price on this page.
Category: Chemical Products · SKU: PTMS-SHMP-25KG · Quotation by inquiry — no public price.
Specifications
Bag-label and example COA facts only — no invented grades or prices. Role: kaolin / ceramic slurry dispersant (deflocculant) that helps liberate iron for magnetic separator iron removal and higher whiteness.
| Parameter | Value |
|---|---|
| Product | Sodium Hexametaphosphate (SHMP / 六偏磷酸钠) |
| Specification grade | 68% |
| Role | Kaolin / ceramic slurry dispersant (deflocculant) |
| Process effect | Helps liberate iron for magnetic separator iron removal → higher whiteness |
| P₂O₅ (bag label) | 68% MIN |
| Total phosphate as P₂O₅ (COA measured / standard) | 68.1% (standard 68%) |
| Water-insoluble (COA measured / standard) | 0.03% (≤0.04) |
| pH (COA measured / standard) | 6.1 (5.8–7.0) |
| Iron Fe (COA measured / standard) | 0.04% (≤0.05) |
| Inactive phosphate as P₂O₅ (COA measured / standard) | 6.5% (≤7.5) |
| Solubility (COA) | 合格 (Qualified) |
| Appearance (COA) | 白色粉末或颗粒 (white powder or granules) |
| Executive standard | HG/T2519-2017 |
| COA batch / production date / result | GH20260622 / 2026.6.22 / 合格 (Qualified) |
| Lab note | 本厂化验 (factory lab) |
| Net weight (N.W.) | 25.0 kg per bag |
| Gross weight (G.W.) | 25.1 kg per bag |
| Origin | Made in China |
| Supplier | FOSHAN POWTECH TECHNOLOGY COMPANY LIMITED (PTMS) |
Direct answer
Answer first: Sodium Hexametaphosphate (SHMP / 六偏磷酸钠) is a kaolin dispersant (deflocculant). It helps liberate and disperse iron so a magnetic separator can capture iron more effectively, achieving higher whiteness on kaolin and ceramic slurry/glaze lines. Bag label: P₂O₅ 68% MIN; N.W. 25.0 kg; G.W. 25.1 kg; Made in China. Example COA (批号 GH20260622, HG/T2519-2017, 合格 / Qualified): total phosphate as P₂O₅ 68.1% (standard 68%), water-insoluble 0.03% (≤0.04), pH 6.1 (5.8–7.0), Fe 0.04% (≤0.05), inactive phosphate as P₂O₅ 6.5% (≤7.5), solubility 合格, appearance 白色粉末或颗粒. Quotation by inquiry — no price on this page.
Questions and answers
What is Sodium Hexametaphosphate (SHMP) used for?
SHMP (六偏磷酸钠) is a kaolin dispersant (deflocculant). It helps liberate and disperse iron so a magnetic separator can capture iron more effectively, raising kaolin and ceramic slurry/glaze whiteness. Bag: P₂O₅ 68% MIN, 25.0 kg net / 25.1 kg gross, Made in China.
How does SHMP help magnetic separation and whiteness?
As a dispersant / deflocculant, SHMP disperses fine particles and helps liberate iron-bearing impurities in kaolin or ceramic slurry/glaze. The magnetic separator then removes that iron more effectively, raising whiteness.
Does SHMP replace a magnetic separator?
No. SHMP prepares the slurry; the magnetic separator performs iron removal. Used together they support higher whiteness. PTMS supplies both SHMP and electromagnetic slurry / wet magnetic separators.
What are the bag and COA specifications?
Bag label: P₂O₅ 68% MIN; N.W. 25.0 kg; G.W. 25.1 kg; Made in China. Example COA (批号 GH20260622, HG/T2519-2017, 合格): total phosphate as P₂O₅ 68.1% (68%), water-insoluble 0.03% (≤0.04), pH 6.1 (5.8–7.0), Fe 0.04% (≤0.05), inactive phosphate as P₂O₅ 6.5% (≤7.5), solubility 合格, appearance 白色粉末或颗粒. No other specs are claimed on this page.
How does SHMP relate to STPP?
Both SHMP and Sodium Tripolyphosphate (STPP) are phosphate dispersants / deflocculants used on kaolin and ceramic lines to help liberate iron ahead of magnetic separation for higher whiteness. Buyers often compare both; inquire for the grade that fits your slurry.
Who supplies this SHMP and how do I inquire?
FOSHAN POWTECH TECHNOLOGY COMPANY LIMITED (PTMS / POWTECH), Foshan, China. Email [email protected] or WhatsApp +86 139 2990 7491 with bag quantity and destination. Quotation by inquiry — no price on this page.
Is there a public price?
No. Quotation by inquiry only — email [email protected] or WhatsApp +86 139 2990 7491.





