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Home > Inorganic Chemistry > Inorganic Acid > Phosphonic acid for Sale > 99% Phosphorous acid CAS 13598-36-2 industrial grade
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99% Phosphorous acid CAS 13598-36-2 industrial grade

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Unit Price: Get Latest Price
CAS No.:

13598-36-2

Grade:

Industrial Grade

Content:

99%

Port:

TIANJIN PORT

Brand:

SUNTECHEMICAL

Packaging:

25KG PP/PE BAG or as your required

Sample Available:

Yes

Price valid (until):

2025-06-29

Company Type:
Trader
Location:
China
Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
Average Lead Time:
10 days
Qualification:
Main Products:

Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


       Product Detail  


    Items Specifications
    Appearance Colorless transparent crystal
    CAS NO. 13598-36-2
    EINECS NO. 237-066-7
    Storage The warehouse is ventilated and dry at low temperature. Store separately from H pore agent and alkali.


    Application  


    1-Reducing agent, nylon whitening agent, also used as phosphite raw materials, pesticide intermediates.

    2-The raw material for the manufacture of phosphite is also the raw material for the manufacture of plastic stabilizers and organophosphate pesticides. Used as a stabilizer for polycarbonate.

    3-Chemical reagents.

    4-Water treatment.

    5-Determination of mercury, gold, silver and lead, reducing agent, determination of iodic acid, copper and cadmium. Phosphorous acid is the raw material for the manufacture of plastic stabilizers. It is also used in synthetic fibers and phosphite manufacturing.


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    Storage


    The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods.


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    Packing&Shipping


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      Suntechemical Advantage  


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      Company Introduction  


    Tianjin Shengtai Chemical Co., Ltd.
    Suntechemical is a professional supplier of fine chemicals and one of northern China's largest suppliers. We have over 25 years of experience in the chemical field. The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods. Now the United States, the European Union, Japan, Canada, and other countries have more than 100 customers to establish stable trade relations.

    Our products are widely used in medicine, pesticides, food, oilfield and water treatment, daily chemicals and cosmetics, surfactants, inks, rubber, cement additives, coatings, polyurethanes, adhesives, solvents, additives, leather, textile, printing and dyeing, building materials, metal processing and other fine chemical-related industries.


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      Certificate  


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      Customer visit  


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      FAQ 


    Q1: May I get some samples from your side?
    Re: Yes, of course. We’d like to provide a 10-1000 g free sample to you, which depends on the product you need. For freight, your side needs to bear, but we will refund you after you place a bulk order.

    Q2: What is your MOQ?
    Re: Usually our MOQ is 1 kg, but sometimes it also is flexible and depends on the product.

    Q3: What kinds of payment are available for you?
    Re: We recommend you pay by T/T or L/C, and you can also choose to pay by PayPal, or MoneyGram if the value is less than USD 3000. Besides, sometimes we also accept Bitcoin.

    Q4: How about lead time?
    Re: For small quantities, the goods will be sent to you within 1-3 working days after payment. For larger quantities, the goods will be sent to you within 3-7 working days after payment.

    Q5: How long I can get my goods after payment?
    Re: For small quantities, we will deliver by courier(FedEx, TNT, DHL, etc) and it usually will take 3-7 days to your side. If you want to use a special line or air shipment, we can also provide and it will cost about 1-3 weeks. For large quantities, shipment by sea will be better. For transport time, it takes 3-40 days, which depends on your location.

    Q6: What’s your after-sales service?
    Re: We will inform you of the progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, etc.

    ECHEMI Editorial Reference
    Phosphorous acid appears as a white or yellow crystalline solid (melting point 70.1 deg C) or a solution of the solid. Density 1.651 g /cm3 . Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption.|DryPowder; Liquid; PelletsLargeCrystals|Solid
    Phosphorous acid appears as a white or yellow crystalline solid (melting point 70.1 deg C) or a solution of the solid. Density 1.651 g /cm3 . Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption.|Phosphorous acid is a phosphorus oxoacid. It is a conjugate acid of a dihydrogenphosphite. It is a tautomer of a phosphonic acid.

    Certificates

    Basic Info
    Product Name:

    Phosphonic acid

    Other Name:

    Phosphonic acid;Phosphorous acid;Dihydroxyphosphine oxide;1135443-40-1

    CAS No.:

    13598-36-2

    UN No.:

    2834

    Molecular Formula:

    H3O3P

    InChIKeys:

    InChIKey=ABLZXFCXXLZCGV-UHFFFAOYSA-N

    Molecular Weight:

    81.99580

    Exact Mass:

    82.00

    EC Number:

    233-663-1

    UNII:

    95E079716M

    UN Number:

    2834

    DSSTox ID:

    DTXSID7035511

    HScode:

    2811199090

    Categories:

    Inorganic Acid

    Characteristics
    PSA:

    81.00000

    XLogP3:

    -0.63930

    Appearance:

    Phosphorous acid appears as a white or yellow crystalline solid (melting point 70.1 deg C) or a solution of the solid. Density 1.651 g /cm3 . Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption.

    Density:

    1.651

    Melting Point:

    73 °C (approx)

    Boiling Point:

    200ºC

    Flash Point:

    200ºC

    Water Solubility:

    H2O: soluble

    Storage Conditions:

    0-6ºC

    Air and Water Reactions:

    Deliquescent. Absorbs oxygen from the air very readily to form phosphoric acid [Hawley]. Soluble in water.

    Reactive Group:

    Acids, Weak

    Reactivity Profile:

    PHOSPHOROUS ACID decomposes when heated to form phosphine, a gas that usually ignites spontaneously in air. Absorbs oxygen from the air to form phosphoric acid [Hawley]. Forms yellow deposits in aqueous solution that are spontaneously flammable upon drying. Reacts exothermically with chemical bases (for example: amines and inorganic hydroxides) to form salts. These reactions can generate dangerously large amounts of heat in small spaces. Dissolution in water or dilution of a concentrated solution with additional water may generate significant heat. Reacts in the presence of moisture with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain alkenes. Reacts with cyanide compounds to release gaseous hydrogen cyanide. May generate flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (to give SO2), and carbonates (to give CO2).

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Skin corrosion, Sub-category 1A

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H302 Harmful if swallowed

    H314 Causes severe skin burns and eye damage

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P260 Do not breathe dust/fume/gas/mist/vapours/spray.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

    P363 Wash contaminated clothing before reuse.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P316 Get emergency medical help immediately.

    P321 Specific treatment (see ... on this label).

    P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    Storage

    P405 Store locked up.

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)

    Location:

    C5-517, Magnetic Capital International Central Avenue, Nankai District, Tianjin, China 300381

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    10 days

    Total Annual Revenue:

    $10 million-$25 million

    Total Employees:

    51-100

    Year of Establishment:

    2023

    Company Certificates
    • Tianjin Shengtai Chemical Co.,LtdHazardous chemicals business license Hazardous chemicals business license
    • Tianjin Shengtai Chemical Co.,LtdHazardous chemicals business license Hazardous chemicals business license

    Suntechemical located in Tianjin is a professional supplier of fine chemicals. We are manufacturer and trader. Since 2001, we have been acting as a leading supplier of specialty and fine chemicals in China. We handle a wide range of chemicals, including detergent raw materials, food additives, water treatment chemicals as well as textile and tanning-making chemicals. Relying on our professional supply chain management ability, we have established a stable cooperative relationship with domestic and foreign famous company such as DOW CHEMICALS, BASF, HUNTSMAN, TOSOH, DELAMINE, Yangzi Petrochemicals BASF, SINOPEC Group, Shanghai Yuanbang Chemical Industry, Jiangsu Sanmu, etc.

    Company Profile
  • Inquiry History
    9 Inquiries
    Country Product Purchase Quantity Date Posted
    Australia

    Hypophosphurous acid

    100 G Mar 7, 2026
    United States

    Phosphonic acid

    1 KG Aug 12, 2025
    Poland

    Phosphorous acid crystal powder [H3PO3]

    100 KG May 13, 2025
    India

    Phosphorous Acid

    500.00 KG Jul 9, 2024
    India

    Phosphonic acid

    20 MT Nov 1, 2023
    Russia

    Phosphorous acid Industrial Grade best selling

    210 MT Jun 25, 2026
    Philippines

    Phosphorous Acid H3PO3 98.5% 99.0% Crystal Powder

    50 KG Jun 11, 2026
    Egypt

    Phosphorous Acid 98.5%

    5 TON Dec 9, 2024
    India

    Phosphorous Acid

    1000.00 KG Jul 29, 2024
    Post an enquiry for this product
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