China HPAA Supplier & Manufacturer

2-Hydroxy Phosphonoacetic Acid HPAA

NANJING FINECHEM HOLDING CO., LTD

Specifications

Item	Index
Appearance	Dark umber liquid
Solid content %	50.0 min
Total phosphonic acid(as PO43-)%	25.0 min
Phosphoric acid (as PO43- )%	1.5 max
Density (20℃) g/cm3	1.30 min
pH(1% water solution)	3.0 max

Packing & Storage

Packing	200L plastic drum,IBC(1000L),customers’ requirement.
Storage	20℃, 2 years.
Shipping	Room temperature in China; may vary elsewhere

Free Quote

For samples, pricing, or more information, please call us at 0086 25 52397805 or mail to info@nj-finechem.com or fill out the following form.
We will respond to you as soon as possible.

Tel: 0086 25 52397805

Email: info@nj-finechem.com

General Information

Chemical & Physical Properties

Safety Information

Synthetic Route

Common Names	2-Hydroxy Phosphonoacetic Acid\|HPAA\|Hydroxyphosphono-acetic acid
Structure
CAS　No.	23783-26-8	Boiling Point (℃)	515.4±60.0 °C at 760 mmHg
Molecular Weight	172.031	Melting Point (℃)	108-110ºC
Appearance	Dark umber liquid	Vapor Specific Gravity	1.45~1.55
HS Code	2931900090	Flash Point (℃)	265.5±32.9 °C
Solubility	hard to be hydrolyzed, hard to be destroyed by acid or alkali	Autoignition Temperature (℃)	N/A

	SYMPTOMS	PREVENTION	FIRST AID
Safety Phrases		S1/2-S22-S26-S36/37/39-S45
RIDADR		UN 3265
WGK Germany		N/A
Packaging Group		II
Hazard Class		8
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Burning sensation. Itching.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Nausea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

1.Synthesis of methyl diethanolamine (MDEA): Methyl acrylate is reacted with ethanol to generate methyl acrylate ethyl ester, which is then catalyzed with sodium hydroxide and acetic anhydride to produce MDEA.

2.Synthesis of 2-aminoethyl-1,1-diphosphonic acid (AEDPA): MDEA is reacted with ammonia solution to generate 2-aminoethyl methylformate, which is then reduced to AEDPA.

3.Synthesis of HPAA: AEDPA is reacted with phosphorous trioxide to generate HPAA.

Frequently Asked Questions

Is 2-Hydroxy Phosphonoacetic Acid (HPAA) toxic?
This product is corrosive, and the staff should take precautions to avoid swallowing or contacting with the body. The workplace should have good ventilation conditions. If it accidentally touches the skin or eyes, rinse immediately with plenty of water. This product is difficult to biodegrade, attention should be paid to the impact on water bodies.

What is 2-Hydroxy Phosphonoacetic Acid (HPAA) used for?
This product is widely used in scale and corrosion inhibition of circulating cooling water systems in steel, petrochemical, electric power, pharmaceutical and other industries, and it is suitable for low hardness water in southern my country.

The storage precautions?
It should be stored in a cool and ventilated place, avoiding direct sunlight. Do not store and transport together with strong alkali, nitrite or sulfite and other substances. During long-term storage, the pressure should be released periodically due to the release of carbon dioxide due to the impurities contained in it.