General Information: Sodium gluconate is the sodium salt of gluconic acid, produced by fermentation of glucose. It is a white to tan, granular to fine, crystalline powder, very soluble in water. Non corrosive, non toxic and readily biodegradable (98% after 2 days), sodium gluconate is more and more appreciated as chelating agent.

Product Name: Sodium Gluconate Technical Grade

Production Origin: Handan TAIXING Biological Chemical Co., Ltd.

HS Code: 2918160000

Molecular formula: G6H11NaO7

molecular weight: 218.14

Properties: white crystalline powder, odorless, slightly soluble in ethanol (25 ℃) 50g/100ml water

Standard: FAO/WHO 24 Edition of the standard United States Pharmacopoeia; Enterprise Standard

Content: 98.0- 99.5%

Chloride: <680PPM

Sulfate: <400PPM

Heavy Metals: <19PPM

Lead: <8PPM

Arsenic: <2PPM

Reduction of material: <0.4%

PH value: 6.5-7.5 (10% aqueous solution)

Packaging: 25 kg /woven bag lined with PE liner;

Min. Order: 20ton

Applications

Food (a good food fortifier of sodium)

Pharmaceuticals

Personal Care

Cleaners/Detergents

Industrial Applications

 

Application of Sodium Gluconate in Concrete Industry

 

1. The Effect on the time-correlated Slump of concrete:

FORM 1. The Effect of Sodium Gluconate on Slump of Concrete and Slump loss

Dosage/%	Initial Slump /mm	0.5hSlump/mm	1hSlump/mm
0	190	160	130
0.03	215	180	130
0.05	220	190	170
0.07	220	230	230
0.10	240	240	230
0.15	230	240	240

 

In a certain water cement ratio, as the increasing of sodium gluconate dosage, the time-correlated slump loss of concrete reduces a lot and even no slump loss as FORM 1 shows. It proves the excellent plasticizer of sodium gluconate.

 

2. The Effect on the Setting Time of Concrete:

 

The Effect of sodium gluconate of different dosage on the setting time of concrete as FORM 2:

FORM 2. The Effect of Sodium Gluconate on Setting Time of Concrete

Dosage/%	Initial Setting Time/（h/min）	Final Setting Time/（h/min）
0	11h/10min	16h/50min
0.03	14h/10min	18h/30min
0.05	28h/20min	27h/30min
0.07	25h/10min	37h/40min
0.10	28h/30min	41h/10min
0.15	35h/20min	72h/30min

 

It is easy to conclude from FORM 2 that the setting time of concrete, either initial setting time or final setting time, is prolonged a lot.

 

 

 

3. The Effect on the Concrete Strength:

FORM 3. The Effect of Sodium Gluconate on the Concrete Strength

Dosage/%	3d/mpa	7d/mpa	28d/mpa	60d/mpa
0	21.2	30.6	40.5	44.7
0.03	19.8	31.4	35.4	41.8
0.05	22.3	30.9	44.7	47.1
0.07	20.6	34.2	46.8	52.3
0.10	12.1	29.0	36.2	40.9
0.15	--	19.5	25.6	26.5

 

 

As FORM 3 shows, there is a best dosage of sodium gluconate towards concrete strength. When it is 3d, 0.05% dosage of sodium gluconate results the best concrete strength; when it is 7d, 28d and 60d, 0.07% dosage of sodium gluconate results the best concrete strength. The less dosage of sodium gluconate mainly affect the concrete strength 3d ago, which means that it has little effect on the concrete strength later; when the dosage is much more, it does not only affect the concrete strength 3d ago, but also affects concrete strength after 3d. Therefore, the concrete strength will increase by increasing the dosage of sodium gluconate, but the concrete strength will fall when the dosage exceeds the best dosage.