CALCIUM PHOSPHITE
- CAS No.
- 21056-98-4
- Chemical Name:
- CALCIUM PHOSPHITE
- Synonyms
- CALCIUM PHOSPHITE;Phosphonic acid calcium salt;calcium hydrogen phosphonate;CALCIUM PHOSPHITE MONOHYDRATE;Phosphonic acid, calcium salt (1:1)
- CBNumber:
- CB4156509
- Molecular Formula:
- CaHO3P
- Molecular Weight:
- 120.06
- MOL File:
- 21056-98-4.mol
- Modify Date:
- 2023/5/4 15:15:12
| Boiling point | 400℃[at 101 325 Pa] |
|---|---|
| Density | 2.32[at 20℃] |
| pka | 6.69[at 20 ℃] |
| Water Solubility | slightly soluble H2O; insoluble alcohol [MER06] |
| EPA Substance Registry System | Phosphonic acid, calcium salt (1:1) (21056-98-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P |
CALCIUM PHOSPHITE Chemical Properties,Uses,Production
Description
Calcium phosphite can have the molecular formula of
CaHPO3 or Ca(H2PO3)2. It is the former that appears
when a solution of phosphorous acid is reacted with
the oxide, hydroxide or carbonate:
CaO +H3PO3 ? CaHPO3·H2O +H2O
The product is a monohydrate. It can also be prepared
by the action of ammonium phosphite on calcium
chloride:
CaCl2 (aq) +NH4HPO3 (aq)
? CaHPO3·H2O +NH4Cl2 (aq)
A white, crystalline powder is obtained. The solubility
of CaHPO3·H2O has apparently not been determined
exactly. If heated to about 250°C, the anhydrate
results. This is stable when heated further up to about
320°C where it decomposes to form phosphine and
hydrogen:
3CaHPO3 + heat ? 2PH3 + 3Ca(PO3)2 +H2
Chemical Properties
crystal(s); used in fertilizers and polymerization catalysts [MER06]
Physical properties
Calcium Phosphite is a colorless, monoclinic crystal which loses water at about 150°C and is slightly soluble in water but insoluble in alcohol. The anhydrate, calcium phosphite (CaHPO3), is stable in air even when heated at 95°C for 2 months.
CALCIUM PHOSPHITE Preparation Products And Raw materials
Raw materials
Preparation Products
CALCIUM PHOSPHITE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21676 | 55 | Inquiry |
| City Chemicals Corporation | 800-248-2436 | United States | 6462 | 72 | Inquiry |
| Wako Pure Chemical Industries, Ltd. | +81 6 6203 3741 | Japan | 6828 | 80 | Inquiry |
| Kanto Chemical Co., Inc. | +81 3 3663 7631 | Japan | 6762 | 74 | Inquiry |
| Pfaltz & Bauer, Inc. | (800) 225-5172 | United States | 6830 | 72 | Inquiry |
| CHEMICAL LAND21 | 82- 2 -783 - 8063 | South Korea | 6315 | 74 | Inquiry |
| City Chemical LLC | 1-203-932-2489 | United States | 6710 | 72 | Inquiry |
| Leancare Ltd. | +33 962096793 | United Kingdom | 6460 | 42 | Inquiry |
| Shanghai Hao Zhun Biological Technology Co., Ltd. | 15800340161 | CHINA | 6846 | 58 | Inquiry |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 17691182729 18161915376 | China | 10011 | 58 | Inquiry |
21056-98-4(CALCIUM PHOSPHITE)Related Search:
1of4
chevron_right