Molekula

Arsenazo I trisodium

SKU 90005357 CAS 520-10-5 C16H10AsN2O11S2Na3 MW 614.28 In stock

Arsenazo I trisodium is a chromogenic reagent used in analytical chemistry for the detection and quantification of metal ions, particularly rare earth elements and calcium. It functions as a colorimetric indicator in complexometric titrations. Available in powder form with a molecular weight of 614.28 g/mol, CAS number 520-10-5, and molecular formula C16H10AsN2O11S2Na3. Store at ambient temperature. Hazard classification includes signal word Danger. Molekula supplies Arsenazo I trisodium from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch Download specification

Overview

Pricing & pack sizes

Pack sizes & pricing

£ GBP € EUR $ USD

100 mg — £35.60 per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Specifications

Download PDF

Property	Value
Appearance	Brown to red powder
Residue on ingnition	22% - 26% (as sulfate)
Identification	Conforms to reference
Assay	≥80%

Storage & handling

Property	Value
Storage Temperature	Ambient
Transport Class	6.1
Packing Group	III
Shelf Life	24 months
Acidity	Neutral

Identification

Property	Value
SKU	90005357
CAS Number	520-10-5
Molecular Formula	C16H10AsN2O11S2Na3
Molecular Weight	614.28
EC / UN Number	3465
REACH Code	Y110
HTS Code	2931906000
Tariff Code	2931900090

Safety & GHS

Danger

Toxic GHS06
Hazardous to the Environment GHS09

Hazard statements

H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
H410 Very toxic to aquatic life with long lasting effects

Precautionary statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray
P273 Avoid release to the environment
P280 Wear protective gloves/protective clothing/eye protection/face protection
P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Safety Data Sheets (SDS)

Available in PT, FR, ES, DE, IT, EN.

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is Arsenazo I trisodium used for?

It is primarily used as a chromogenic reagent in analytical chemistry for detecting and quantifying metal ions, especially rare earth elements and calcium.

What is the chemical formula and molecular weight of Arsenazo I trisodium?

The formula is C16H10AsN2O11S2Na3 with a molecular weight of 614.28 g/mol.

How should Arsenazo I trisodium be stored?

It should be stored at ambient temperature, protected from moisture and light.

What grade is available for Arsenazo I trisodium?

Available in analytical grade; specific purity details are provided upon request.

Can Molekula supply Arsenazo I trisodium in bulk?

Yes, bulk quantities are available—please contact our sales team for pricing and availability.

What documentation comes with an order of Arsenazo I trisodium?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

Talk to a chemist

Documents Pricing