ChemicalBook >> CAS DataBase List >>Zinc hydroxide

Zinc hydroxide

CAS No.
20427-58-1
Chemical Name:
Zinc hydroxide
Synonyms
znmc hydroxide;ZINC HYDROXIDE;Zinc dihydoxide;zincdihydroxide;zinchydroxide(zn(oh)2);Zinc oxide ammonia complex;Zinc hydroxide≥ 99% (Assay);ZINC HYDROXIDE ISO 9001:2015 REACH
CBNumber:
CB5671092
Molecular Formula:
H2O2Zn
Molecular Weight:
99.39
MDL Number:
MFCD00049620
MOL File:
20427-58-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-05 18:44:30
Product description Number Pack Size Price
Zinc hydroxide ≥99.5%(Assay) 30652 5G $25
Zinc hydroxide ≥99.5%(Assay) 30652 25G $70
Zinc hydroxide ≥99.5%(Assay) 30652 100G $190
Zinc hydroxide ≥99.5%(Assay) 30652 250G $380
Zinc hydroxide ≥99.5%(Assay) 30652 1KG $1250
More product size

Zinc hydroxide Properties

Melting point 125, decomposes [HAW93]
Density 3.050
vapor pressure 0Pa at 20℃
storage temp. Store at room temperature, keep dry and cool
form colorless orthorhombic crystals
color colorless orthorhombic crystals, crystalline
PH 8.88(1 mM solution);8.88(10 mM solution);8.88(100 mM solution)
Water Solubility slightly soluble H2O [HAW93]
Solubility Product Constant (Ksp) pKsp: 16.5
Stability Stable.
Cosmetics Ingredients Functions ABSORBENT
InChI InChI=1S/2H2O.Zn/h2*1H2;/q;;+2/p-2
InChIKey UGZADUVQMDAIAO-UHFFFAOYSA-L
SMILES [Zn](O)O
LogP -1.380 (est)
CAS DataBase Reference 20427-58-1(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances ZINC HYDROXIDE
FDA 21 CFR 176.210(Defoaming agents used in the manufacture of paper and paperboard)
EWG's Food Scores 3
FDA UNII OXK3V8KJ7L
EPA Substance Registry System Zinc hydroxide (20427-58-1)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Environment (GHS09)
GHS09
Signal word  Warning
Hazard statements  H411-H400
Precautionary statements  P273-P391-P501
TSCA  TSCA listed
REACH Registrations Active

Zinc hydroxide price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Chem-Impex 30652 Zinc hydroxide ≥99.5%(Assay) 20427-58-1 5G $25 2026-05-19 Buy
Chem-Impex 30652 Zinc hydroxide ≥99.5%(Assay) 20427-58-1 25G $70 2026-05-19 Buy
Chem-Impex 30652 Zinc hydroxide ≥99.5%(Assay) 20427-58-1 100G $190 2026-05-19 Buy
Chem-Impex 30652 Zinc hydroxide ≥99.5%(Assay) 20427-58-1 250G $380 2026-05-19 Buy
Chem-Impex 30652 Zinc hydroxide ≥99.5%(Assay) 20427-58-1 1KG $1250 2026-05-19 Buy
Product number Packaging Price Buy
30652 5G $25 Buy
30652 25G $70 Buy
30652 100G $190 Buy
30652 250G $380 Buy
30652 1KG $1250 Buy

Zinc hydroxide Chemical Properties,Uses,Production

Description

Zinc hydroxide is a white solid that usually forms in solution. It is not very stable as a dried solid, therefore a standard of zinc hydroxide is not available commercially.
Zinc hydroxide Zn(OH)2 is an amphoteric chemical compound. Both bases and acids react with zinc hydroxide. It's an insoluble hydroxide that dissolves when exposed to a strong acid. It occurs naturally as the rare minerals Wulfingite, ashoverite and sweetite. Zinc hydroxide is used as a biological absorbant often.

Chemical Properties

Colorless crystals.Decomposes at 125C. Almost insoluble in water; forms both zinc salts and zincates.

Physical properties

Colorless orthorhombic crystals; density 3.053 g/cm3; decomposes at 125°C; slightly soluble in water.

Uses

Intermediate, absorbent in surgical dressings, rubber compounding.

Preparation

The compound is prepared by adding a strong alkali to a solution of zinc sulfate or chloride: ZnSO4 + 2NaOH → Zn(OH)2 + Na2SO4.

Global( 200)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Yanxi Chemical Co., Ltd.
+8618531123677 faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365 mina@chuanghaibio.com China 18126 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21586 55
Xi'an Kono chem co., Ltd.,
029-86107037 13289246953 info@konochemical.com China 1169 58
BOC Sciences
+1-631-485-4226 inquiry@bocsci.com United States 19936 58
Hubei Ipure Biology Co., Ltd
+8613367258412 ada@ipurechemical.com China 10236 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
ANHUI WITOP BIOTECH CO., LTD
+8615255079626 eric@witopchemical.com China 23541 58
Shaanxi Dideu Medichem Co. Ltd
+86-029-89586680 +86-18192503167 1026@dideu.com China 9996 58
Baoji Guokang Healthchem co.,ltd
+8615604608665 15604608665 dominicguo@gk-bio.com CHINA 9414 58

View Lastest Price from Zinc hydroxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Zinc hydroxide pictures 2025-12-01 Zinc hydroxide
20427-58-1
1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
Zinc hydroxide pictures 2025-06-27 Zinc hydroxide
20427-58-1
1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
Zinc hydroxide pictures 2025-06-20 Zinc hydroxide
20427-58-1
$10.00-40.00 1kg 0.99 30 tons Hebei Yanxi Chemical Co., Ltd.
  • Zinc hydroxide pictures
  • Zinc hydroxide
    20427-58-1
  • $10.00-40.00
  • 0.99
  • Hebei Yanxi Chemical Co., Ltd.

Zinc hydroxide Spectrum

zincdihydroxide zinchydroxide(zn(oh)2) ZINC HYDROXIDE znmc hydroxide Zinc dihydoxide Zinc hydroxide≥ 99% (Assay) ZINC HYDROXIDE ISO 9001:2015 REACH Zinc oxide ammonia complex 20427-58-1 ZnOH2 H4O2Zn Inorganics