GADOLINIUM HYDROXIDE

GADOLINIUM HYDROXIDE - Names and Identifiers

Name	GADOLINIUM(III) HYDROXIDE
Synonyms	GADOLINIUM HYDROXIDE GADOLINIUM(III) HYDROXIDE trihydroxygadolinium hydrate GADOLINIUM(III) HYDROXIDE HYDRATE, 99.9+ Gadolinium hydroxide (Gd(OH)3), hydrate (9CI)
CAS	100634-91-1
EINECS	626-950-1
InChI	InChI=1/Gd.4H2O/h;4*1H2/q+3;;;;/p-3/rGdH3O3.H2O/c2-1(3)4;/h2-4H;1H2

GADOLINIUM HYDROXIDE - Physico-chemical Properties

Molecular Formula	GdH3O3
Molar Mass	208.27
Melting Point	>350°C(lit.)
Appearance	Powder
Solubility Product Constant(Ksp)	pKsp: 22.74
Merck	14,4326
Storage Condition	Room Temprature
MDL	MFCD00049930
Physical and Chemical Properties	WGK Germany:3

GADOLINIUM HYDROXIDE - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing.
WGK Germany	3
TSCA	Yes

GADOLINIUM HYDROXIDE - Introduction

Hydrated gadolinium hydroxide (Gd(OH)3 · xH2O) is a hydroxide compound in which a gadolinium ion (Gd3) is combined with a hydroxide ion (OH−). It is a white solid, common hydrated state with x water molecules bound.

Hydrated gadolinium hydroxide has the following properties:
1. Solubility: It has certain solubility in water, and the solution is alkaline.
2. Stability: relatively stable at room temperature, but will decompose under high temperature and acidic conditions.

the main use of hydrated gadolinium hydroxide:
1. Medical applications: Because gadolinium ions have high absorption capacity for X-rays and magnetic fields, they can be used as medical contrast agents for enhanced magnetic resonance imaging (MRI) and radiocontrast agents.
2. Materials Science: Hydrated gadolinium hydroxide can be used as a precursor for the synthesis of other gadolinium compounds and materials, such as gadolinium oxides, gadolinium complexes, etc. These materials have important uses in the fields of catalysts, fluorescent agents and rare earth materials.

preparation of hydrated gadolinium hydroxide methods are mainly the following:
1. Hydrothermal method: the right amount of gadolinium salt dissolved in water, adding the right amount of sodium hydroxide solution, hydrothermal reaction, generate hydrated gadolinium hydroxide precipitation.
2. precipitation method: the appropriate amount of gadolinium salt and sodium hydroxide reaction, generate hydrated gadolinium hydroxide precipitation.

Safety Information for Hydrated Gadolinium Hydroxide:
1. hydrated gadolinium hydroxide dust may be irritating to the respiratory system and skin, should avoid inhalation of dust or skin contact.
2. When handling or using, necessary protective measures should be taken, such as wearing masks, gloves, etc., to avoid direct contact with hydrated gadolinium hydroxide.
3. During storage and use, contact with strong acid should be avoided to prevent violent reaction.
4. Waste disposal should be carried out in accordance with local regulations to avoid environmental pollution.

Last Update：2024-04-09 21:04:16