Product Name  TPO

Identification
Synonyms   2, 4, 6-Trimethylbenzoyldiphenyl phosphine oxide; Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
Molecular Formula C₂₂H₂₁O₂P
Molecular Weight  348.37
CAS Number 75980-60-8
EINECS/ELINCS 278-355-8
Structure


Properties
Appearance  Light yellow powder
Melting Point  90.0 - 95.0°C 
Water Solubility  0.0001 g/l - OECD Test Guideline 105 - slightly soluble

Specification

Application
Mainly used as photoinitiator for Offset, Flexo, and Screen inks. Also can be used for wood coatings.

Advantages
Fast photocuring speed;
Good using in thick layers of photocuring coatings;
Low-volatility, mild-smell and environment friendly;
Anti-yellowing


Packing and Storage
Packing In 20kgs net bag or carton.
Storage  Keep tightly closed. Avoid light and keep in cool and dry condition.

Safety Information
UN number: 3077 Class: 9 Packing group: III
Proper shipping name: Environmentally hazardous substance, solid, n.o.s. (Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide)

Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.


Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; 

For those high value products, you just need to freight and certain product cost. When we both cooperate for 

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you. 

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) 

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on 

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement. 

Q5: How can you guarantee the goods you offer is qualified? 
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide 

for you all are qualified. We will have goods tested and provide COA before delivery for sure.