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Sodium citrate has good solubility in water, on the Ca2 + in the water, such as magnesium 2 + metal ions has excellent chelating ability,so Sodium Citrate widely used in detergent industry,In the construction industry, sodium citrate can be used as a retarder to add into the concrete, in order to improve the tensile, compressive strength and frost resistance of cement products performance.
Sodium Citrate technical grade/used in cementing and concrete retarder industry
1.Chemical name: Sodium Citrate
2.Sodium Citrate M. F. : NaC6H5O7.2H2O
3. Sodium Citrate M. W. : 294.10
4.Sodium Citrate Physical properties: colorless crystalloid or white crystalline powder; Odourless, cool and salty; Slightly deliquescent in moist air; Efflorescent in hot air; Soluble in water but insoluble in Ethanol. To decompose when heated and to lose cystal water at 150.
5.Sodium Citrate Quality standard:( BP93 BP98FCC-4)
| Name of index | BP93 | BP98 | FCC-4 |
| Appearance | White or light yellow crystal or powder | White or light yellow crystal or powder | White or light yellow crystal or powder |
| Content(KC6H5O7) ≥% | 99.0-101.0 | 99.0-101.0 | 99.5-100.5 |
| Heavy metal(AsPb) ≤% | 0.001 | 0.001 | 0.001 |
| AS ≤% | 0.0001 | 0.0001 | - |
| Loss on drying% | 11.0-13.0 | 11.0-13.0 | 10.0-13.0 |
| Cl ≤% | 0.005 | 0.005 | - |
| Sulphate Salt≤% | 0.015 | 0.015 | - |
| Qxalate Salt≤% | 0.03 | 0.03 | - |
| Alkalinity% | 0.2 | Accord with the test | Accord with the test |
| Readily Carbonisable Substances | Accord with the test | Accord with the test | - |
| Transparenly and color of sample | - | Accord with the test | - |
| Pyrogens | - | Accord with the test | - |
6.Sodium Citrate Usage: Retarder for cement and concre,contruction industry..
7.Sodium Citrate Packing: in 25kgs net paper bags lined with PP bags.
8.Sodium Citrate Storage and transport: To be stored in a dry, ventilative and clean warehouse; Kept away from moisture and heat, poisonous substances. Handle with care.
We can suply retarders:
Citric Acid
Sodium Citrate
Sodium Gluconate
Sodium Pyrophosphate
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