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Identify Suppliers 2025 Properties Safty

Phosphinic acid

BGC Id:	140531794744
CAS No:	6303-21-5
Synonyms:	phosphonous acid ; hypophosporous acid ; hydroxyphosphine oxide ; hypophosphorous acid ; hypophosphorus acid ; phosphine oxide, hydroxy- ; hypophosphorous acid (hpa 50%) ; phosphinic acid 50% ; hypophosphoric acid ; dihydroxyphosphine ; hypophosphorous ; hypophosphorous acid 30% to 32% (as per nf specs) up to 80% ; hypophoaphoeous acid ; diphosphoric(iv) acid ; hypophosphorous acid (hpa) ; phosphinic acid ; hypophosphorous acid 50%
Molecular Formula:	H3O2P
Molecular Weight:	66.00
EINECS:	228-601-5

The most competitive supplier in 2025

The following 2 notable providers have been checked and can be recommended.

Skyrun Industrial

BuGuCh & Partners

What other providers are available for CAS 6303-21-5?

The last intensive check and update was carried out on 2025/07/31.

Identify

Synonyms:

phosphonous acid ; hypophosporous acid ; hydroxyphosphine oxide ; hypophosphorous acid ; hypophosphorus acid ; phosphine oxide, hydroxy- ; hypophosphorous acid (hpa 50%) ; phosphinic acid 50% ; hypophosphoric acid ; dihydroxyphosphine ; hypophosphorous ; hypophosphorous acid 30% to 32% (as per nf specs) up to 80% ; hypophoaphoeous acid ; diphosphoric(iv) acid ; hypophosphorous acid (hpa) ; phosphinic acid ; hypophosphorous acid 50%

CAS:

6303-21-5

EINECS:

228-601-5

Molecular Formula:

H3O2P

MDL:

MFCD02183592

Properties

Molecular Weight:

66.00 g·mol−1

Density:

1.206 g/mL at 20 °C(lit.)

Melting point:

-25 °C

Boiling point:

108 °C (759.8513 mmHg)

Solubility:

soluble in water

Physical Description:

colourless liquid

Suppliers

Skyrun Industrial Co., Ltd.

Tipo de compañía: Leading producer

Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Además 5,5'-Dibromo-2,2'-bithiophene es suministrada por nosotros. Our working range can be start from small amount in research stage to big bulk for industrial produc ...

País: P.R.China Teléfono: +86-576-84015261 Fax: +86-576-84015261

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BuGuCh & Partners

Tipo de compañía: Producer

País: Germany

We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...

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Safety Information

Hazard Symbols: C

Europe standard Hazard pictograms, code and definition

Hazard Classes:

Risk Codes:

34 (R)

Safety Codes:

26-36/37/39-45 (S)

WGK Germany:

RID / ADR:

UN 3264 8 / PG 3

RTECS:

SZ6400000

The following providers cannot be verified precisely. The companies have offered the product in the past, but despite all care, the companies could not confirm it 100 percent!

Albright & Wilson Ltd.

Albright & Wilson (A&W) is the leading manufacturer of surfactants and supplier of phosphates in the Australian market. Our comprehensive product ra... Request

What other providers are available for CAS 6303-21-5?

In addition to the providers presented here for Phosphinic acid with the CAS number 6303-21-5, there are other 57 providers with slightly different product names available for this CAS number.

Phosphinic acid 50%

+2 additional providers that we know from the past

Hypophosphorous acid

Hypophosphorous acid 50%

+6 additional providers that we know from the past

Hypophosphorous acid 30%, Pharma

+1 additional providers that we know from the past

Hypophosphorous acid 50%, Pharma

+2 additional providers that we know from the past