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METHYLPHOSPHONIC ACID

METHYLPHOSPHONIC ACID Structure
CAS No.
993-13-5
Chemical Name:
METHYLPHOSPHONIC ACID
Synonyms
METHANEPHOSPHONIC ACID;NSC 119358;METHYLPHOSPHONIC ACID;Phosphonic acid, methyl-;Methylphosphonicacid,98%;Methanephosphonic acid,98%;Phosphonic acid, P-methyl-;Methylphosphonic acid ,97.5%;Methanephosphonic acid, 98% 5GR;Methanephosphonic acid, 98% 25GR
CBNumber:
CB8201298
Molecular Formula:
CH5O3P
Molecular Weight:
96.02
MOL File:
993-13-5.mol
MSDS File:
SDS
Modify Date:
2024/7/11 17:04:31

METHYLPHOSPHONIC ACID Properties

Melting point 105-107 °C(lit.)
Boiling point 265.2±23.0 °C(Predicted)
Density 1.495±0.06 g/cm3(Predicted)
vapor pressure 0Pa at 20℃
storage temp. -20°C
solubility H2O: soluble2.88 g in 30 mL, clear, colorless
form Crystalline Powder
pka pK1:2.38;pK2:7.74 (25°C)
color White to off-white
PH 0.9-1.4
Water Solubility Soluble in water and alcohol.
Sensitive Hygroscopic
λmax λ: 260 nm Amax: ≤0.05
λ: 280 nm Amax: ≤0.04
BRN 1739372
Stability Stable. Incompatible with strong oxidizing agents, strong bases.
LogP -1.556 at 20℃
EPA Substance Registry System Phosphonic acid, P-methyl- (993-13-5)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C,T,F
Risk Statements  22-34-39/23/24/25-23/24/25-11
Safety Statements  26-36/37/39-45-36/37-16-7
RIDADR  UN 3261 8/PG 2
WGK Germany  3
10
HazardClass  8
PackingGroup  II
HS Code  29310099
NFPA 704
1
3 1

METHYLPHOSPHONIC ACID price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 40941 Methylphosphonic acid 99.0-101.0% (T) 993-13-5 100MG ₹5823.85 2022-06-14 Buy
Sigma-Aldrich(India) 40941 Methylphosphonic acid 99.0-101.0% (T) 993-13-5 500MG ₹22970.65 2022-06-14 Buy
Sigma-Aldrich(India) 40941 Methylphosphonic acid 99.0-101.0% (T) 993-13-5 2.5G ₹90821.75 2022-06-14 Buy
Sigma-Aldrich 289868 Methylphosphonic acid 98% 993-13-5 1G ₹1558.8 2022-06-14 Buy
Sigma-Aldrich(India) 289868 Methylphosphonic acid 98% 993-13-5 1G ₹1558.8 2022-06-14 Buy
Product number Packaging Price Buy
40941 100MG ₹5823.85 Buy
40941 500MG ₹22970.65 Buy
40941 2.5G ₹90821.75 Buy
289868 1G ₹1558.8 Buy
289868 1G ₹1558.8 Buy

METHYLPHOSPHONIC ACID Chemical Properties,Uses,Production

Chemical Properties

white crystals or flakes

Uses

Methylphosphonic acid is used to produce methyl-phosphonic acid dichloride by chlorination.

Application

Methylphosphonic acid is used in the production of lubricant additives and for treating textiles.

Purification Methods

Methylphosphonic acid [993-13-5] M 96.0, m 104-106o, 105-107o, 108o, pK 1 2.12, pK 2 7.29. If it tests for Cl-, then add H2O and evaporate to dryness, repeat several times till free from Cl-. The residue solidifies to a wax-like solid. Alternatively, dissolve the acid in the minimum volume of H2O, add charcoal, warm, filter and evaporate to dryness in a vacuum over P2O5. [Kosolapoff J Am Chem Soc 75 3379 1953.] The di-Na salt is prepared from 24g of acid in 50mL of dry EtOH, and a solution of 23g Na dissolved in 400mL EtOH is added. A white precipitate is formed, but the mixture is refluxed for 30minutes to complete the reaction. Filter off the solid and recrystallise it from 50% EtOH. Dry the crystals in a vacuum desiccator. [Thompson J Chem Soc 3292 1952, Beilstein 4 IV 3498.]

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Phosphonic acid, methyl- METHYLPHOSPHONIC ACID Methylphosphonicacid,98% Methanephosphonic acid,98% Methylphosphonic acid ,97.5% Methanephosphonic acid, 98% 25GR Methanephosphonic acid, 98% 5GR NSC 119358 Methylphosphonic acid solution Phosphonic acid, P-methyl- METHANEPHOSPHONIC ACID 993-13-5 CH3POOH2 CH5O3P Building Blocks Phosphorus Compounds Phosphonic/Phosphinic Acids Organic Building Blocks Organic Building Blocks Phosphonic/Phosphinic Acids Phosphorus Compounds