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Calcium phosphate monobasic monohydrate

Also known as: Calcium dihydrogen phosphate 1-hydrate, Calcium phosphate monobasic, Acid calcium phosphate, monohydrate, Prim-calcium phosphate monohydrate, Monocalcium phosphate monohydrate, Calcium superphosphate·hydrate, calcium diphosphate hydrate

Calcium phosphate monobasic monohydrate (CAS 10031-30-8) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula CaH6O9P2 and a molecular weight of 252.06800 g/mol. Key properties include a boiling point of 203°C, a density of 2.220^1^6 and a flash point of 203°C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.
10031-30-8
Jingsj CID
J-41105-2
Molecular Formula
CaH6O9P2
Molecular Weight
252.06800 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point203°C
Density2.220^1^6
Flash Point203°C
Exact Mass251.91100
PSA190.03000
Vapor Pressure1.41mmHg at 25°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code3103109000

Frequently Asked Questions

What is the CAS number of Calcium phosphate monobasic monohydrate?

The CAS number of Calcium phosphate monobasic monohydrate is 10031-30-8.

What are the molecular formula and molecular weight of Calcium phosphate monobasic monohydrate?

Calcium phosphate monobasic monohydrate has molecular formula CaH6O9P2 and molecular weight 252.06800 g/mol.

Which suppliers offer Calcium phosphate monobasic monohydrate?

1 supplier(s) listed; request a quote for pricing.

Is Calcium phosphate monobasic monohydrate hazardous?

Calcium phosphate monobasic monohydrate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Calcium phosphate monobasic monohydrate (CAS 10031-30-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41105-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.