Sodium thioglycolate supplier
Gandi Chemical Solutions supplies sodium thioglycolate — sodium mercaptoacetate, CAS 367-51-1 — to cosmetic formulators and industrial processors in three concentrations: solution at 20% and at 40%, and a solid at minimum 96.5%. Concentration is chosen by dosing accuracy and freight, not by assay alone.
Grades held
3 grades of sodium mercaptoacetate, CAS 367-51-1. Each one links to its full specification, safety data and packaging.
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≥96.5% — solid
High-assay solid
Bought where the water in a solution grade is unwanted, or where freight over distance makes shipping water uneconomic. The grade to compare when tonnage is high and the haul is long.
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≥40% — concentrated solution
Solution
Removes the dissolving step and the solid-handling dust while still carrying most of its mass as active material. The usual choice for continuous dosing.
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≥20% — dilute solution
Solution
Bought where dosing accuracy at low rates matters more than freight efficiency, or where an existing formulation is built around the dilute concentration.
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What decides the grade
One reducing agent at three concentrations. The decision is a handling and freight decision before it is a chemistry one.
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Solid or solution
A solution removes the dissolving step and the dust that goes with handling a solid. A solid removes the water you would otherwise be paying to freight. Which of the two costs more depends on the distance and the tonnage rather than on the price per kilogram.
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Dosing accuracy at low rates
Where the dose is small and has to be exact, a dilute grade is easier to meter than a concentrate diluted on site. That is the case the 20% exists for, and it is a control argument rather than a cost one.
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The concentration the formulation is written around
A cosmetic or process formulation specified at one concentration should be supplied at it. Substituting a stronger grade and diluting shifts the water balance and anything that depends on it.
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Shelf life and storage
Thioglycolate solutions oxidise on contact with air, and a partly used drum ages faster than a sealed one. Order to consumption rather than to a price break, and say what your turnover is so the pack size can follow it.
Supply, documentation and handling
Packaging
Drums and IBCs for the solution grades, bagged units for the solid, packed to your requirement. Pack size is quoted against your consumption rather than against a standard.
Documentation
A safety data sheet ships with every consignment, and a certificate of analysis stating assay is issued on request. Cosmetic buyers should ask at quotation stage for what their own file requires.
Handling
Keep containers closed and away from oxidising agents and acids — contact with acid releases hydrogen sulphide. Store cool and use gloves and eye protection; the material has a persistent odour that carries at low concentration.
How it is quoted
Priced by quotation. Send the concentration your formulation is written around, the annual volume and the delivery point, and the grades are compared on delivered cost of active material.
Before you order sodium thioglycolate
Which concentration of sodium thioglycolate should I order?
Order the concentration your formulation is written around. Beyond that: the 96.5% solid is the economic choice on long hauls and high tonnage, the 40% solution removes solid handling for continuous dosing, and the 20% is for low dose rates where metering accuracy matters more than freight.
Is sodium thioglycolate the same as sodium mercaptoacetate?
Yes — two names for one substance, CAS 367-51-1, formula C₂H₃NaO₂S. It is the sodium salt of thioglycolic acid and is listed under both names depending on the market and on the specification writing it.
Can I dilute the 40% down to 20%?
Chemically yes, and it is worth thinking about before you do. Diluting on site adds a step, a water specification and a shelf-life question to a material that oxidises in air. Where the dose is low and has to be exact, buying the dilute grade is usually the cleaner answer.
How should it be stored?
Cool, sealed and away from acids and oxidising agents. Contact with acid releases hydrogen sulphide. Solutions oxidise once air is admitted, so a partly used drum ages faster than a full one and stock is better ordered to consumption than to a price break.
Still deciding between grades? Send the duty and the volume, and GCS comes back with what it costs and when it lands. Request a Quote
