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
- MDL Number:
- MFCD00053958
- MOL File:
- 21056-98-4.mol
| 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] |
| FDA UNII | 0NI2DC6M5T |
| 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 price More Price(1)
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.
Flammability and Explosibility
Not classified
CALCIUM PHOSPHITE Preparation Products And Raw materials
Raw materials
Preparation Products
CALCIUM PHOSPHITE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22968 | 58 |
| Hubei yongkuo Technology Co., Ltd | 027-59223108 15972152991 | 1248580099@qq.com | China | 10007 | 58 |
| Hubei Xinkang Pharmaceutical Chemical Co., Ltd | 027-027-59308705 18871579363 | 1248680011@qq.com | China | 9984 | 58 |
| Hubei Shishun Biotechnology Co. Ltd | 027-59223025 15107168801 | 1718480011@qq.com | China | 9994 | 58 |
| Hubei Baidu Chemical Co., Ltd | 13627137652 | 1438180055@qq.com | China | 9994 | 58 |
| Hubei Guangao Biotechnology Co., Ltd | 027-027-59223056 18162699093 | 1208480011@qq.com | China | 9951 | 58 |
| Hubei Wande Chemical Co., Ltd | 027-59210159 15377098680 | 1148280011@qq.com | China | 9994 | 58 |
| Tianmen Hengchang Chemical Co., Ltd | 027-59322316 15172518801 | 1208480077@qq.com | China | 9946 | 58 |
| Hubei Qifei Pharmaceutical Chemical Co., Ltd | 027-027-59322506 18071128681 | 1438082200@qq.com | China | 9995 | 58 |
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