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Propylene Glycol Monobutyl Ether（PNB）

Name: Propylene Glycol Monobutyl Ether（PNB）
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Propylene Glycol Monobutyl Ether (PNB), with the chemical formula C₇H₁₆O₂, is an important propylene glycol ether solvent. It appears as a colorless transparent liquid with a mild ether-like odor. It features a medium evaporation rate, good coupling ability and solvency power, being miscible with water and most organic solvents. This product exhibits good solubility for various resins and oils, along with relatively low toxicity, making it widely used in coatings, inks, cleaning agents and other fields.

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Product Parameters

Product Name (English)	Propylene Glycol Monobutyl Ether (PNB)
CAS No.	5131-66-8
Physical Properties	- Colorless transparent liquid with a mild ether-like odor - Medium evaporation rate, good coupling ability - Miscible with water and most organic solvents - Good solvency for resins and oils
Applications	- Solvent for coatings, inks and cleaning agents - Coupling agent in water-based systems - Coalescing agent in latex paints - Component in brake fluids and metal working fluids
Specifications	Purity: ≥99.5% Boiling Point: 170.2°C Density: 0.884 g/cm³ (20°C) Flash Point: 60°C (closed cup) Water Content: ≤0.1%
Packaging	200 KG/drum (carbon steel or stainless steel)

Basic Properties

Physical Properties:
· Appearance: Colorless transparent liquid with a mild ether odor
· Melting Point: Below -100°C
· Boiling Point: 170.2°C
· Density: 0.884 g/cm³ (20°C)
· Solubility: Miscible with water, ethanol, ether, acetone, etc.
· Refractive Index: 1.417 (20°C)
Chemical Properties:
· Relatively stable chemically
· Possesses dual characteristics of ether and alcohol
· Can undergo esterification, etherification and other reactions
· Stable to oxidizers

Main Applications

Coatings Industry: Used as solvent and coupling agent in water-based coatings, oil-based coatings and baking paints
Ink Industry: Employed as solvent in water-based inks and printing inks
Cleaning Agents: Important component in hard surface cleaners, degreasers and glass cleaners
Brake Fluids: Base component in automotive brake fluids
Metal Working: Used in metal working fluids and rust preventatives
Others: Used in pesticide emulsification, cosmetics and personal care products

Safety Precautions

Health Hazards:
· Causes mild eye and skin irritation
· Inhalation of high concentration vapor may cause respiratory tract irritation and central nervous system depression
· Prolonged or repeated skin contact may cause dermatitis
Handling Protection:
· Wear chemical safety goggles and impermeable gloves
· Ensure adequate ventilation in working area
· Avoid contact with skin and eyes
· Wash hands thoroughly after handling
Storage & Transportation:
· Store in cool, well-ventilated area
· Keep containers tightly closed, away from heat and ignition sources
· Store separately from strong oxidizers
· Use carbon steel or stainless steel containers
Fire Fighting:
· Combustible liquid, flash point 60°C (closed cup)
· Use foam, dry powder or CO2 to extinguish fire
· Use water spray to cool exposed containers and prevent re-ignitio

Company Profile

Junteng Chemical is a professional chemical raw materials trading company dedicated to providing customers with one-stop procurement services. Through strict supplier, supply chain, and after-sales management, the company ensures that product quality, transportation, and use meet customer needs. Furthermore, the company's technical team offers customized solutions and support services free of charge.

The company has projects in the pharmaceutical, pesticide, petrochemical, construction, food additives, wastewater treatment, adhesives, inks, paints, coatings, plastic and rubber processing, detergent raw materials, fertilizer and textile mills, and more. Junteng Chemical sources products of stable and reliable quality, collaborating with domestic and international companies such as Luxi Group, Weiyuan Chemical, Qilu Petrochemical, Dongying Lihuayi, Yanshan Petrochemical, Sinopec, Shijiazhuang Refinery, Qingdao Petrochemical, Sailboat, Dow Chemical, BASF, South Korea, Taiwan, and Saudi Arabia. Our stable supply, superior product quality, and mature logistics have earned us a wide clientele. We look forward to collaborating with all of you for a mutually beneficial future.

Company advantages

One-Stop Procurement
Platform

We integrate resources across all productcategories, including organic solvents,resins and rubbers, and inorganicchemicals,and strictly control suppliers.supply chains, and after-sales processes toensure stable quality, efficienttransportation,and worry-free use,simplifying your procurement process.

Professional Team TechnicalEmpowerment

Equipped with an experienced technicalteam, we provide free personalizedsolutions and professional technicalsupport to customers in varlous industrie,such as pharmaceuticals, petrochemicals,coatings and inks, and sewage treatment,.helping you solve problems and improveefficiency.

Global supply ChainSecurity

We work with top domestic and foreignchemical giants such as Luxi Group, QiluPetrochemical, Sinopec, BASF of Germany,and Dow of the United States to establisha stable and reliable high-quality supplynetwork and a mature logistics system toensure timely and safe delivery of
products.

Deep Win-Win CooperationConcept

Adhering to the concept of "integrity.immediate action, professionalism,innovation and win-win" and taking"customer success and altruism" as ourmission, we are committed to establishinglong-term strategic partnerships andcreating a better future through excellentproducts and services.