Sodium Chromate Supplier in Malaysia
- Also known as
- Sodium chromate(VI)
- Disodium Chromate
- Na2CrO4
Sodium chromate supplier for metal-finishing, process and laboratory enquiries in Malaysia. Also known as sodium chromate(VI), disodium chromate and Na2CrO4, it is a yellow crystalline chromium(VI) salt supplied in anhydrous and hydrated forms according to the process specification.
Technical anhydrous grade is used where the added water must be controlled, while sodium chromate tetrahydrate is selected for solution preparation and processes that name the hydrated salt. Analytical material is specified by assay and trace impurity limits rather than by a generic chromium-salt description.
Metal finishers use sodium chromate in selected conversion, surface-treatment and corrosion-control systems. Manufacturing and coating operations may specify it as a process input, while laboratories use analytical sodium chromate when the method calls for the chromate ion. It is not the same product as sodium dichromate, potassium dichromate or chromium oxide.
Send the required form, grade, assay or impurity limits, application, quantity and delivery location with your enquiry. Availability, packing, documentation, delivery arrangements and timing are confirmed with the quotation. Supply is subject to applicable requirements.
- CAS number
- 7775-11-3
- Formula
- Na2CrO4
- Grade
- technical anhydrous, tetrahydrate, analytical
- Appearance
- yellow crystalline solid or powder
Sodium Chromate grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Technical anhydrous sodium chromate | yellow crystalline solid or powder | chromate content and impurity limits confirmed against the quoted grade | Metal-finishing, conversion-treatment and industrial process work where anhydrous sodium chromate is named in the specification. | Confirm the required pack format with the quotation. |
| Sodium chromate tetrahydrate | yellow crystalline solid | hydrate state, chromate content and moisture basis confirmed against the quoted grade | Solution preparation and process formulations that specify the hydrated sodium chromate form rather than anhydrous material. | Confirm the required pack format with the quotation. |
| Analytical-grade sodium chromate | fine yellow crystalline powder | assay and trace impurity limits confirmed against the quoted grade | Laboratory and analytical work that requires sodium chromate(VI) as the named reference reagent or process oxidant. | Confirm the required pack format with the quotation. |
How to buy sodium chromate from ChemTrade
Request a quote for sodium chromate
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | yellow crystalline solid or powder | — |
| Chemical identity | sodium chromate(VI), the sodium salt of chromic acid | — |
| Molecular formula | Na2CrO4 for anhydrous sodium chromate | — |
| CAS number | 7775-11-3 for anhydrous sodium chromate | — |
| Water behaviour | soluble in water; concentration and hydrate basis are confirmed for the selected grade | — |
| Grade controls | chromate assay, hydrate state, moisture and impurity limits confirmed against the required specification | — |
Sodium Chromate applications
Safety and handling
Keep sealed and dry in a cool, well-ventilated place away from reducing agents, acids, combustible materials and incompatible chemicals. Follow the safety information supplied for the quoted grade. Supply is subject to applicable requirements.
Common questions about sodium chromate
Is sodium chromate the same as sodium dichromate?
No. Sodium chromate is Na2CrO4 and contains the chromate ion, while sodium dichromate is Na2Cr2O7 and contains the dichromate ion. They are separate chromium salts with different compositions and should not be treated as interchangeable grades.
Should I request anhydrous sodium chromate or the tetrahydrate?
Request the form named by the process or existing specification. Anhydrous material is selected when the water contribution must be controlled, while the tetrahydrate is used when a hydrated salt is specified for solution preparation or formulation.
What is sodium chromate used for in metal finishing?
It is used in selected chromate conversion, surface-treatment and corrosion-control processes for metals. State the substrate, bath or formulation requirement and impurity limits so the quotation can be matched to the actual finishing process.
Can sodium chromate be used for laboratory analysis?
Yes, analytical or reagent grades are used where a method specifically names sodium chromate(VI). State the method, required purity and hydrate basis; sodium dichromate and other chromium salts are different reagents.
What specification details should be included in an enquiry?
Include anhydrous or tetrahydrate form, grade, chromate assay, relevant impurity limits, application, quantity and delivery location. Add any required documentation so the quoted material can be checked against the purchase specification.
How is sodium chromate priced?
Price depends on hydrate state, grade, assay or impurity limits, quantity and delivery location. Send those details for a quotation with a stated validity period rather than requesting an unspecified chromium salt.