Flame Retardant DOPO CAS 35948-25-5

Sodium phosphate tribasic dodecahydrate CAS 10101-89-0
Benzimidazole CAS 51-17-2

Flame Retardant DOPO paramete

Classification: Chemical Auxiliary Agent
Other Names: DOPO
EINECS No.: 252-813-7
Place of Origin: Shandong, China
Adsorbent Variety: Activated Carbon
Product Name: 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
Grade: Industrial
Risk Statements: 36/37/38
storage temp.: APPROX 4°C
Shape: Spherical
CAS No.: 35948-25-5
MF: C12H9O2P
Purity: 99.5%MIN
Type: Adsorbent
Usage: Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents
Color: WHITE
Melting point: 119°C
Fp: 11 °C
Assay %: 99.5%min
Name: 35948-25-5


DOPO can be used for flame retardant of various polymer materials, such as linear polyester, epoxy resin, bismaleimide, etc. It is widely used for flame retardant of electronic, synthetic fiber, semiconductor packaging materials, etc.

DOPO and its derivatives can also be used in the chemical modification of polymer materials because of their special functions

DOPO can also be used as insecticide, fungicide, curing agent, antioxidant, stabilizer, photoinitiator, binder, blocking agent for harmful metal ions, bleaching agent for organic matter, and ultraviolet light absorber.


Item Unit Index
DOPO  % ≥99.5
Cl mg/KG ≤20
Content of  P % ≥14
(Ze)(Fe) mg/KG ≤5
Na mg/KG ≤5
Melting point 117-120


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Every batch of products will be tested to ensureits quality.

* Sample testing support.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

After-Sales Service

* Any questions about the product can be consulted at any time.

*The fact of logistics information monitoring.

*Product has any problem can return.


Secure and discreet shipment. You have various choices of transportation methods.

1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.


Q1: Do you accept sample order?
A:  We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
Q2:  What information should I let you know if I want to get a quotation
A :  Quality you require, eg. Assay, Purity, or single impurity -Quantity you need -Standard you want, such as USP, EP, JP etc.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
Q5: When will you deliver the goods
A :  For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
Q6: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Flame Retardant DOPO picture

Packaging and shipping