2-Phosphonobutane-1, 2, 4-Tricarboxylic Acid (PBTC) CAS: 37971-36-1

• CAS No.: 37971-36-1
• Formula: C7h11o9p
• EINECS: 253-733-5
• Appearance: Liquid
• Colour: White
• Product Name: 2-Phosphonobutane-1, 2, 4-Tricarboxylic Acid (PBTC
• Model NO.: 50%
• CAS: 37971-36-1
• Mf: C7h11o9p
• MW: 270.13
• Transport Package: 250kgs Net in PE Drum, 1250kgs Net in IBC or Isota
• Trademark: SWC
• Production Capacity: 20mts/Month

Product Description

Synonyms: Phosphino butane tricarboxylic acid; PBTC
Molecular Formula: C7H11O9P
Molecular Weight: 270.13
CAS Number: 37971-36-1
EINECS Number: 2537335

Properties
Appearance: Water white to pale yellow liquid
Density: 1.27-1.30 g/ml at 20 ° C
Solubility in water: Miscible
Stability: Stable under ordinary conditions

Storage and Packing
Packing: 250kgs net in PE drum, 1250kgs net in IBC or Isotank.

Applications
PBTC is designed as a 50% aqueous solution to control calcium scale formation and precipitation in highly stressed alkaline Industrial Water Treatment (IWT) and boiler systems. PBTC has been widely used in industry as a sequestering agent and calcium carbonate scale inhibitor for applications in industrial water treatment and industrial cleaning.

Safety Infromation
UN 3265 8/PG 3.

Test Items	Standard
Appearance	Water white to pale yellow liquid
Active acid	49.0 - 51.0%
pH (1% solution) @ 25 º C	2.0 max
Density @20 º C	1.27 - 1.30g/cm 3
Chloride (as Cl)	10ppm max
Iron (as Fe)	5ppm max
H3PO4 (as PO4)	0.25% max

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.