Fracturings chemicals usa Finoric Fracturing stimulation production coil tubing chemicals
Call Toll-Free: 1-855-FINORIC
Houston + Midland + Pleasanton, Texas, USA
Also Oklahoma, OK and Williston, ND USA.

Home - Product CAS - Contact

Search our website here:


FInOrIC, etymologically derived from our business line of Fine Inorganic, Organic and Industrial Chemicals, is the internationally preferred source for Chemicals. With customers in 55 countries across 5 continents, we source and sell most chemicals. Backed by company owned & operated full-fledged chemical manufacturing facilities in Midland & Houston, Texas with associated manufacturing sites in India, Dubai and China we are a truly multi-national chemical manufacturer and distributor.

Most of our or our partner facilities are either FDA-cGMP certified, ISO-9001:2008 certified, Halal and/or Kosher certified, REACH pre-registered ISO-22000:2005 HACCP.

Bg Jar Chemical Toll Packaging & Contract Packaging Palletized and Shrink Wrapped Drum Packing Palletized and Shrink Wrapped 25kg 50kg 55 lbs Export Import Chemical Solvent Tote USA Chemical Manufacturers Carboy Bulk Jumbo Bags

Metalized Pouch Liquid Powder Pillow Pouch Sample Bottle Pouch with Cap Varous tub jar packing Pail Packing

For Product Specifications please click Phosphonobutane Tricarboxylic Acid PBTC Phosphono Butanetricarboxylic Acid Manufacturers

2-Phosphonobutane-1,2,4-Tricarboxylic Acid


CAS NO.: 37971-36-1
EINECS NO.: 253-733-5
Molecular Formula: C7H11O9P
Molecular Weight.: 270.13
Synonyms:   PBTCA; PBTC; PHOSPHONOBUTANE TRICARBOXYLIC ACID; 2-Phosphonobutane -1,2,4-Tricarboxylic Acid; 2-Phosphonobutane-1,2,4-tricarboxylic acid; PBTC; PBS-AM; Phosphonobutanetricarboxylic acid; 2-Phosphono-1,2,4-butanecarboxylic acid; Phosphonono Butanetricarboxylic Acid.
Specific Gravity: 1.25 - 1.35


1. Product Identification

Product Name: 2-Phosphonobutane-124-tricarboxylic Acid; PBTCA; PBTC
Synonyms: PBTCA; PBTC; Phosphonobutane tricarboxylic Acid; 2-Phosphonobutane-1,2,4-Tricarboxylic Acid; PBS-AM; Phosphonobutanetricarboxylic acid;  2-Phosphono-1,2,4-butanecarboxylic acid; Phosphonono Butanetricarboxylic Acid; 2-phosphono-1,2,4-butanetricarboxylic acid.
Recommended usage: Industrial Manufacturing.

Company: Finoric LLC
Address: 8115 Loop 540, Beasley, Texas, 77417 USA

In case of emergency contact:
US: 1-800-535-5053 
International: 352-323-3500

2. Hazards Identification

GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008

Acute Toxicity - Oral Category 5
Skin corrosion/irritation Category 1A, B, C
Serious eye damage/eye irritation Category 1
Skin corrosion / Irritation Category 1
Serious eye damage / eye irritation Category 1
Acute Toxicity - Inhalation Category 5

Labeling according to GHS & Regulation (EC) No 1272/2008

GHS Label Elements

Signal Words: Danger

Hazard statements:
H303 May be harmful if swallowed.
H314 Cause severe skin burns and eye damage!
H318 Cause serious eye damage!
H333 May be harmful if inhaled.

Precautionary statements:
P260: Do not breathe dust/fume/gas/mist/vapors/spray.
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P264: Wash with plenty of water and soap thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P273:: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P281: Wear protective equipment for hands, eyes, face and respiratory tract.
P301+330+331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P301+312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P303+361+353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P304+312: IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P362: Take off contaminated clothing and wash before reuse.
P405: Store locked up.
P501: Dispose of contents/container in accordance with local/regional/national/international regulations.

Classification according to EU Directives 67/548/EEC or 1999/45/EC:
Xi Irritant
Xn Harmful
C Corrosive
R20 Harmful by inhalation
R22 Harmful if swallowed
R36/37/38 Irritating to eyes, respiratory system and skin

3. Composition/Information on Ingredients

Chemical Name: 2-Phosphonobutane-1,2,4-Tricarboxylic Acid PBTC
CAS No.: 37971-36-1 50

4. First Aid Measures

Eyes:: Flush with water for at least 15 minutes. If irritation occurs and persists, obtain medical attention.
Skin: Remove contaminated clothing and thoroughly wash with soap and water. If irritation occurs and persists, contact a medical doctor.
Ingestion: If conscious, rinse mouth with water. Dilute by giving 1 or 2 glasses of water. Do no induce vomiting. Get medical attention immediately.
Inhalation: Remove to fresh air. If breathing difficulty or discomfort occurs and persists, obtain medical attention.

5. Fire Fighting Measures

Flash Point: Not applicable
Flammable Limits: Not applicable
Auto ignition Temperature: Not applicable
Extinguishing Media: Not applicable (aqueous solution)
Fire/Explosion Hazards: None
Hazardous Decomposition Products: Not applicable
Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire Water can be used.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. Sealed containers of 2-Phosphonobutane -1,2,4-Tricarboxylic Acid or PBTC may rupture when heated.

6. Accidental Release Measures

Small Spill: Use appropriate tools to put the spilled 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC in a convenient waste disposal container.
Large Spill: Stop leak if without risk. Avoid contact with a combustible material (wood, paper, oil, clothing...). Keep damp using water spray. Eliminate all ignition sources.
Release Notes: Keep 2-Phosphonobutane -1,2,4-Tricarboxylic Acid or PBTC out of streams and sewers. Absorb spilled material on commercial oil absorbent or sand. Put the contaminated absorbent into a DOT approved container and dispose of according to the methods outlined in the "Disposal Considerations" section.

7. Handling and Storage

Keep 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Avoid storage on wood floors. Avoid contact with eyes, skin clothing etc. Do not swallow. Containers of PBTC may be hazardous when empty since they retain product residues.

8. Exposure Controls/Personal Protection

Engineering Controls: None established
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerin, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in work area.

9. Physical and Chemical Properties

Odor: Slight
Appearance: 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC is pale yellow liquid
pH: Acidic < 2
Vapor Pressure: ~20 MBAR at 20C
Boiling Point: 101C to 103C
Freezing Point: -15C
Melting Point: Not applicable
Pour Point: Not applicable
Solubility: Soluble in water in all proportions
Density: 1.30 g/cc @ 20C
Specific Gravity: 1.25-1.35
Viscosity: 15-25 CST @ 25C mm2/sec

10. Stability and Reactivity

Conditions to Avoid: Store 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC away from nitrites, sulphites and alkaline materials. Do not store in mild steel containers (corrosive. Keep 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC containers tightly closed when not in use and when in transit.
Stability: Stable
Polymerization: Will not occur
Hazardous Decomposition Products: None
Incompatible Materials: Nitrites, sulphites and alkalis.

11. Toxicological Information

Eyes: Irritant (rabbit)
Skin: Non-irritant (rabbit)
Oral LD50: >5000 mg/kg (rat)
Acute Effects from Overexposure: 2-Phosphonobutane -1,2,4-Tricarboxylic Acid or PBTC has low oral toxicity. It is irritating to the eyes and non-irritating to the skin. 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC is moderately irritating to the mucous membranes.
Chronic Effects from Overexposure: 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC was not mutagenic in the Ames Assay. No significant health effects expected.
IARC: Not listed
NTP: Not listed
OSHA: Not listed
OTHER: ACGIH: Not listed

12. Ecological Information

Ecotoxicological Information: 96 hour LC50 (Rainbow trout) > 1000 mg/l 48 hour EC50 (Daphnia) > 300 mg/l 72 hour EC50
(Algae) > 1000 mg/l Eliminated from waste water plants by precipitation with Ferric and Aluminum Salts.
Chemical Fate Information: No data available for the product.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a RCRA approved waste facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused 2-Phosphonobutane-1,2,4-Tricarboxylic Acid or PBTCA; PBTC in accordance with federal, state and local requirements.
Disposal Method: Absorb spillage onto sand or other absorbent material and dispose of as solid waste as per local regulations (e.g. incineration). Surplus 2-Phosphonobutane -1,2,4-Tricarboxylic Acid or PBTC can be incinerated.

14. Transport Information

USA Department of Transportation (DOT)
Proper Shipping Name: Corrosive liquid, acidic, organic, N.O.S. (contains 2-Phosphonobutane-1,2,4-Tricarboxylic Acid)
Primary Hazard Class/Division: 8 (Corrosive)
UN/NA Number: UN 3265
Packing Group: III
Placards: Corrosive
Label: Corrosive
Other Shipping Information
DOT Marking: Corrosive liquid, Acidic, Organic, N.O.S. (contains 2-Phosphonobutane-1,2,4-Tricarboxylic Acid) UN 3265
Hazardous Substance/RQ: Not applicable 49 STCC Number: No rail shipments of this material
Canada Transport of Dangerous Goods
Proper Shipping Name: Corrosive liquid, acidic, organic, N.O.S. (contains 2-Phosphonobutane-1,2,4-Tricarboxylic Acid)
Primary Hazard Class/Division: 8 (Corrosive)
UN/NA Number: UN3265
Packing Group: III
Special Shipping Notes: IMDG: Corrosive Liquid, Acidic, Organic, N.O.S. (contains 2-Phosphonobutane-1,2,4-Tricarboxylic Acid)
IATA: Corrosive Liquid, Acidic, Organic, N.O.S. (contains 2-Phosphonobutane-1,2,4-Tricarboxylic Acid) Keep container tightly closed.
Protect against physical damage.

15. Regulatory Information

SECTION 311 HAZARD CATEGORY (40 CFR 370): Acute (immediate) health hazard
CERCLA REGULATORY (40 CFR 302.4): Not applicable
TSCA STATUS (40 CFR 710): Listed
PROPOSITION 65: This product does not contain any substance(s) which are defined by the state of California to cause cancer, birth defects, or other reproductive effects.

Classification: Not applicable Ingredient Disclosure List: Not Listed Domestic Substance List: Listed.

16. Other Information

EINECS EC Number: 253-733-5
European Labeling in Accordance with EC Directives
H303 May be harmful if swallowed.
H314 Cause severe skin burns and eye damage!
H318 Cause serious eye damage!
H333 May be harmful if inhaled.

Xi Irritant
Xn Harmful
C Corrosive
R20 Harmful by inhalation
R22 Harmful if swallowed
R36/37/38 Irritating to eyes, respiratory system and skin

Prepared by AJK on 20 August 2016 - Printed on: 24 August 2016

DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.

2-Phosphonobutane-1,2,4-Tricarboxylic Acid manufacturers,
Phosphono Butanetricarboxylic Acid manufacturers PBTCA; PBTC manufacturers

Finoric LLC
Beasley Houston Pleasanton Midland, Texas, USA.
Also Oklahoma, OK and Williston, ND USA

Tel: 1-855-346-6742 (1-855-FINORIC)

Most products offered from our Houston TX, Midland TX, Pleasanton TX and Oklahoma, OK and Williston, ND area warehouse

We are looking for Technical Sales Representatives or Business Associates in New York, Williston North Dakota, Mansfield Pennsylvania, Zanesville, Ohio and Los Angeles Area, USA.

Organic Products
BHA Butylated Hydroxyanisole BHT Butylated Hydroxy toluene
Citric Acid Choline Chloride
Disodium EDTA Erythorbic Acid
Furfuryl Alcohol Hydrolyzed Polymaleic Anhydride HPMA
Hydroxy ethylidene Diphosphonic Acid, HEDP Phosphonate  
Isatoic Anhydride Glycine
Methyl & Dimethyl Anthranilate Maleic Acid
Pentaerythritol Phosphonono butanetri carboxylic acid PBTC
Pentaerythritol Picric Acid
Polyquaternium WSCP Poly carboxylate Concrete strengthner
Potassium salt of Hydroxy Ethylidene,1-Diphosphonic Acid, HEDP-Kx Potassium Phthalimide
Salicylic Acid Sodium Hydroxy methane sulfonate or Sodium Formaldehyde Bisulfite
Sulfamic Acid TBHQ Tertiary Butyl Hydro Quinone.htm
Tetrakis (Hydroxy methyl) Phosphonium Sulfate THPS  

Phosphonobutane Tricarboxylic Acid manufacturers; PBTC manufacturers PBTCA Phosphono Butanetricarboxylic Acid manufacturers

Phosphono Butanetricarboxylic Acid manufacturers
Phosphonobutane Tricarboxylic Acid manufacturers
PBTC manufacturers PBTCA Suppliers, Exporters, Importers
2-Phosphonobutane-1,2,4-Tricarboxylic Acid manufacturers

19 August, 2018