Zinc bromide dihydrate
Also known as: Zinc, diaquadibromo-,(T-4)- (9CI), dibromozinc,dihydrate, zinc(II) bromide dihydrate
Zinc bromide dihydrate (CAS 18921-13-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Br2H4O2Zn and a molecular weight of 261.21900 g/mol. Key property: a melting point of >300ºC(lit.). It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H410 — Very toxic to aquatic life with long lasting effects. It is listed by 2 suppliers, from 1.92 to 1,916.00 CNY. Record last updated Nov 3, 2026.
- CAS No.
- 18921-13-6
- Jingsj CID
- J-30909-1
- Molecular Formula
- Br2H4O2Zn
- Molecular Weight
- 261.21900 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 2500g | ¥4,790.00 | $0.29 /gBest ¥1.92/g CNY | CN China MOQ 2500g | |
Made to Order | 99% 500g | ¥1,208.00 | $0.36 /g ¥2.42/g CNY | CN China MOQ 500g | |
In Stock | 99% 500g | ¥1,208.00 | $0.36 /g ¥2.42/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | >300ºC(lit.) |
|---|---|
| Exact Mass | 257.78700 |
| PSA | 18.46000 |
| LogP | 1.56010 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Zinc bromide dihydrate?
The CAS number of Zinc bromide dihydrate is 18921-13-6.
What are the molecular formula and molecular weight of Zinc bromide dihydrate?
Zinc bromide dihydrate has molecular formula Br2H4O2Zn and molecular weight 261.21900 g/mol.
Which suppliers offer Zinc bromide dihydrate?
2 supplier(s) listed; reference unit price ¥1.92–1916.00 /g.
Is Zinc bromide dihydrate hazardous?
Zinc bromide dihydrate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H410 — Very toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Zinc bromide dihydrate (CAS 18921-13-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30909-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.