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Xylenol Orange, sodium salt

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Origin: China

Cas No: 3618-43-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 3618-43-7 Formula: C31H31N2Na4O13S Molecular Weight: 763.60800

Description

Xylenol orange is an organic reagent, most commonly used as a tetrasodium salt as an indicator for metal titrations. When used for metal titrations it will appear red in the titrand and yellow once it reaches its endpoint. Historically, commercial preparations of it have been notoriously impure, sometimes consisting of as little as 20% xylenol orange, and containing large amounts of semi-xylenol orange and iminodiacetic acid. Purities as high as 90% are now available.

Basic Info

Chemical Name	Xylenol Orange, sodium salt
Synonyms	3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein tetrasodium salt; Xylenol orange tetrasodium salt; Xylenol orange;
CAS No.	3618-43-7
Molecular Formula	C31H31N2Na4O13S
Molecular Weight	763.60800
PSA	259.21000
LogP	-3.29590

Properties

Appearance & Physical State	red-brown to purple crystalline powder
Boiling Point	904.1ºC at 760 mmHg
Melting Point	210ºC
Flash Point	500.6ºC
Water Solubility	510 g/L (20 ºC)
Stability	Stable, but may be moisture sensitive.
Storage Condition	Store in a cool, dry place. Keep containers tightly closed.