CAS 7681-11-0 Gold etchant, standard - Materials / Alfa Chemistry

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Gold etchant, standard

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Catalog Number

ACM7681110-1

Product Name

Gold etchant, standard

Structure

CAS

7681-11-0

Category

Electronic Materials

Description

Potassium iodide is an odorless white solid. Sinks and mixes with water. (USCG, 1999);DryPowder; DryPowder, PelletsLargeCrystals; OtherSolid; PelletsLargeCrystals

IUPAC Name

potassium;iodide

Molecular Weight

166.003g/mol

Molecular Formula

KI;IK

Canonical SMILES

[K+].[I-]

InChI

InChI=1S/HI.K/h1H;/q;+1/p-1

InChI Key

NLKNQRATVPKPDG-UHFFFAOYSA-M

Boiling Point

Very high (USCG, 1999);1323 °C

Melting Point

1258 °F (USCG, 1999);681 °C

Density

3.13 at 59 °F (USCG, 1999);3.12 g/cu cm

Solubility

Slightly soluble in ethanol;148 g/100 g water at 25 °C;127.5 g sol in 100 cc water at 0 °C; 1.88 g sol in 100 cc alcohol at 25 °C; 1.31 g sol in 100 cc acetone at 25 °C; sol in ether, ammonia;1 gram dissolves in 0.7 mL water, 0.5 mL boiling water; 51 mL absolute ethanol; 22 mL alcohol; 8 mL methanol; 75 mL acetone; 2 mL glycerol; about 2.5 mL glycol

Color/Form

Colorless or white, cubical crystals, white granules, or powder;HEXAHEDRAL CRYSTALS, EITHER TRANSPARENT OR SOMEWHAT OPAQUE

Complexity

Covalently-Bonded Unit Count

EC Number

231-659-4

Exact Mass

165.86818g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

Antistrumin;Iodide, Potassium;Ioduro Potasico Rovi;Iosat;Jod beta;Jodetten Henning;Jodgamma;Jodid;Jodid dura;Jodid Hexal;Jodid ratiopharm;Jodid Verla;Jodid-ratiopharm;Mono Jod;Mono-Jod;Pima;Potassium Iodide;SSKI;Thyro Block;Thyro-Block;Thyroprotect

Monoisotopic Mass

165.86818g/mol

NSC Number

77362

Other Experimental

Slightly deliquescent in moist air; on long exposure to air becomes yellow due to liberation of iodine, small amount of iodate may be formed; light and moisture accelerate the decomposition; aqueous solution becomes yellow in time due to oxidation, but a small amount of alkali prevents it;30 g KI with 21 mL water gives 30 mL of a saturated solution at 25 °C;Slightly hygroscopic in moist air;Readily dissolves elemental iodine /Potassium iodide solution/

Refractive Index

Index of refraction = 1.677

Rotatable Bond Count

Stability

Stable in dry air;Light and moisture accelerate decompn.;VOLATILIZES @ HIGHER TEMP /melting point 680 °C/

UNII

1C4QK22F9J

MSDS

Download MSDS

COA

Download COA

Spec Sheet