H-Quest® L 50 sodium glucoheptonate has many industrial uses as a high-performance chelating agent. Its superior performance in the pH range between 9 and 14 is due to its efficiency in forming stable chelates with divalent and trivalent metal ions such as Ca+2, Mg+2, Fe+2, Fe+3, Zn+2, Al+3, etc.

Chemical Name: Sodium glucoheptonate

CAS Number: 31138-65-5

Chemical Family: Glucoheptonate, Sodium Salts

Labeling Claims: Biodegradable, CleanGredients (DfE), Not Listed In California Proposition 65

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Compatible Substrates & Surfaces
Industrial Additives End Use
Concrete Additives Application

Used in formulating cement retarders. It produces a permanent increase in the cement volume, increased compressive strength, increased plasticity, and inhibits corrosion of the metal used in reinforced concrete.

Properties

Physical Form
Appearance
Amber liquid
Typical Properties
ValueUnitsTest Method / Conditions
Solid Contentmin. 49.5%-
pH (at 1% DI water)9.00 - 11.00--
Specific Gravity1.234 - 1.334--

Regulatory & Compliance

Chemical Inventories
Eco-Toxicity
  • H-Quest® L-50 has recieved DfE approval and been granted a ‘ Full Green Circle.’
  • H-Quest® L-50 is readily biodegradable.

Technical Details & Test Data

Calcium Chelation Test Data

Sodium glucoheptonate provides superior binding performance in the pH range 9 to 14. Forms stable chelates with di- and tri-valent metal ions such as Ca+2, Mg+2, Fe+2, Fe+3, Zn+2, Al+3, etc. Exceptional chelant for multi-valent iron. Alpha/Beta blend.

Calcium Chelation as mg CaCO3/g

% NaOH pH H-Quest C-100 H-Quest L-50 48% GLDA 40% HEDTA Trilon
0.25 12.6 153.2 51.1 142 136.2 145
0.50 12.9 190.1 93.6 156 139 176
0.75 13.1 332 207.1 150 164.6 187
1.00 13.3 652.6 252.5 167 141.9 196
2.00 13.5 686.7 295.1 216 144.7 233
4.00 13.8 794.5 317.8 281 141.9 272


Tests were performed under Harcros’s standard chelation test conditions. In application, the presence of other materials in solution and other factors can affect sequestration ability. These figures are approximations of the product’s sequestering ability. 
H-Quest® C 100 - Calcium Chelation Test Data - 1

Packaging & Availability

Storage & Handling

Storage & Handling Information

This product has excellent storage stability at a variety of temperatures. Storage at room temperature is suggested.