Chromotropic acid disodium salt dihydrate
Chromotropic acid disodium salt dihydrate (CAS: 5808-22-0) is a derivative of naphthalene, appearing as a solid. Its chemical formula is (HO)2C10H4(SO3Na)2·2H2O, with a molecular weight of 400.29 g/mol. This compound serves as a key reagent in analytical chemistry, notably for the colorimetric determination of formaldehyde and for detecting titanium. It is also utilised in organic synthesis as a building block.
- IUPAC
- 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt,4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt
- Synonyms
- 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt
Analytical Reagent
Chromotropic acid disodium salt dihydrate is widely employed as a sensitive reagent for the colorimetric determination of formaldehyde. It is also used for the detection and quantification of titanium in various samples.
Organic Synthesis Intermediate
This compound functions as a useful building block in organic synthesis. Its specific structure allows for incorporation into more complex molecules during chemical synthesis processes.
Dye Intermediate
Due to its naphthalene-based structure and sulfonic acid groups, it can serve as an intermediate in the synthesis of certain dyes.
| Molecular weight | 400.29 |
|---|---|
| Linear formula | (HO)2C10H4(SO3Na)2·2H2O |
| Assay | ≥80% (T) |
| Melting point | >300 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chromotropic acid disodium salt dihydrate used for?
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Chromotropic acid disodium salt dihydrate is primarily used as an analytical reagent for the colorimetric determination of formaldehyde and for detecting titanium. It also serves as an intermediate in organic synthesis and potentially in dye manufacturing.
What is the CAS number and formula for Chromotropic acid disodium salt dihydrate?
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The CAS number is 5808-22-0. The linear formula is (HO)2C10H4(SO3Na)2·2H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chromotropic acid disodium salt dihydrate with an assay of ≥80% (T). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Chromotropic acid disodium salt dihydrate be handled?
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Handling requires caution due to potential irritation. Use a dust mask type N95 (US), wear eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. Refer to the Safety Data Sheet for comprehensive guidance.
Is Chromotropic acid disodium salt dihydrate a controlled substance?
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Based on the provided data, there is no indication that Chromotropic acid disodium salt dihydrate is a controlled substance.
How is Chromotropic acid disodium salt dihydrate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Chromotropic acid disodium salt dihydrate. We adhere to all relevant shipping and export regulations.
How can I request a sample or quote for Chromotropic acid disodium salt dihydrate?
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Please contact our sales team via the website or direct inquiry channels to request a sample or a quotation for Chromotropic acid disodium salt dihydrate.
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