Solid Yellow Pharmaceutical Rosin, for Industrial, W/Ww Pharmaceutical Chemical Rosin

• Customization: Available
• CAS No.: 8050-09-7
• Formula: C20h30o2
• Model NO.: rosin
• Color: Light Yellow
• Delivery Time: 7-15 Working Days
• Certification: ISO, Grs, SGS
• Softening Point (R&B) ºC: ≥76
• Acid Value. (Mg KOH/G): ≥165
• Un Sop. Matter(%): ≤8.0
• Alcohol Insol. Substance (%): ≤0.03
• Ash (%): ≤0.02
• Application: Wax,Pressure Sensitive Adhesives, Hot Met Adhesive
• Shelf Life: 2 Years
• Transport Package: Drum
• Specification: customized
• Trademark: Chijiang
• Origin: China
• HS Code: 3909500000
• Production Capacity: 50000000tons/Year

Product Description

 

Product Description

    Rosin is a kind of oil tree resin in the pine family, and its main component is C19H29COOH. It is divided into three types: "gum rosin", "wood rosin" and "floating oil rosin". It is often used as a depilatory by poultry slaughterers. Rosin itself is not very toxic to the human body, but it often contains heavy metals such as lead and toxic compounds. In addition, the industry uses it repeatedly for low cost. The peroxide produced after the oxidation of rosin seriously affects human health, so it becomes a regulated product.
           Rosin can be obtained from pine-like tree species around the world, especially longleaf pine, Cuban pine and loblolly pine produced in the southeastern United States. Cuts are made in these trees to distill and extract the highly viscous secretion called rosin. This volatile liquid is turpentine; the remaining hard resin is called rosin.     

        Rosin is divided into three types according to its source: gum rosin, wood rosin, and floating oil rosin.
     Gum rosin, also known as loose rosin, has a light color, a high acid value, and a high softening point;
      Wood rosin, also known as leached rosin, is not as good as gum rosin, has a dark color, a low acid value, and is easy to crystallize from certain solvents;
      Floating oil rosin is also known as tall oil rosin. Rosin is a transparent, brittle solid natural resin. It is a relatively complex mixture composed of resin acids (abietic acid, pimaric acid), a small amount of fatty acids, rosin anhydride, and neutral substances.

     The main component of rosin is resin acid, accounting for about 90%, with a molecular formula of C19H29COOH and a molecular weight of 302.46. Resin acid is the most representative rosin acid, an unsaturated acid, containing conjugated double bonds, strongly absorbing ultraviolet light, and can be automatically oxidized or induced to oxidize in the air. Rosin has a light yellow to light brown appearance, glassy luster, turpentine odor, and a density of 1.060~1.085g/cm3. It is amorphous, has no melting point, softening point (ring and ball method) 72~76ºC, boiling point about 300ºC (0.67kPa). Glass transition temperature Tg 30~38ºC. Refractive index 1.5453. Flash point (open cup) 216ºC. Ignition point about 480~500ºC. It is easily oxidized in the air and the color becomes darker.

 

Detailed Photos

 

APPLICATION

Rosin is an ingredient in printing inks, varnishes, adhesives (glues), soap, paper sizing, soda, soldering fluxes, and sealing wax.

 

Rosin can be used as a glazing agent in medicines and chewing gum. It is denoted by E number E915. A related glycerol ester (E445) can be used as an emulsifier in soft drinks. In pharmaceuticals, rosin forms an ingredient in several plasters and ointments.

In industry, rosin is the precursor to the flux used in soldering. The lead-tin solder commonly used in electronics has about 1% rosin as a flux core helping the molten metal flow and making a better connection by reducing the refractory solid oxide layer formed at the surface back to metal. It's frequently seen as the burnt or clear residue around new soldering.

A mixture of pitch and rosin is used to make a surface against which glass is polished when making optical components such as lenses.

Rosin is added in small quantities to traditional linseed oil/sand gap fillers, used in building work.

When mixed with waxes and oils, rosin is the main ingredient of mystic smoke, a gum which, when rubbed and suddenly stretched, appears to produce puffs of smoke from the finger tips.

Rosin is extensively used for its friction-increasing capacity in several fields:

• Bowed string players rub cakes or blocks of rosin on their bow hair so it can grip the strings and make them speak. Extra substances such as beeswax, gold, silver, tin, or meteoric iron are sometimes added to the rosin to modify its stiction/friction properties, and (disputably) the tone it produces.
• Powdered rosin is often applied to new hair, for example with a felt pad or cloth, to reduce the time taken in getting sufficient rosin onto the hair.
• Violin rosin can be applied to bridges in other musical instruments, such as the Banjo and Banjolele, in order to stop the bridge moving during vigorous playing.
• Ballet and flamenco dancers sometimes rub their shoes in powdered rosin to reduce slippage before going on stage - it was at one time used in the same way in fencing and is still used as such by boxers.
• Gymnasts use it to improve grip.
• Applied onto the starting line of drag racing courses used to improve traction.
• Bull riders rub rosin on their rope and glove for additional grip.
• Baseball pitchers and ten-pin bowlers may have a small bag of powdered rosin nearby, to use on their throwing hand, for better control of the ball.

                  

Product Parameters

Parameter	Grade
Standard: GB8145-87	X	WW	WG
APPEARANCE	Transparent	Transparent	Transparent
COLOR	Light Yellow	Pale Yellow	Yellow
SOFTENING POINT(R&B)°C	77	76	75
ACID NUMBER(mg KOH / g)≥	166	166	164
UNSAPONIFIABLE MATTER % ≤	5	5	5
ETHANOL INSOLUBLES % ≤	0.03	0.03	0.03
ASH CONTENT % ≤	0.02	0.02	0.02

Index	Super Grade X	1^st Grade WW	2^nd Grade WG	3rd Grade N
Color	Yellowish	Pale yellow	Yellow	Deep yellow
	Conforming to the demands on the standard color spaces of rosin color grade glass
Softening Point (ring & ball) °C ≥	76		75	74
Acid value mgKOH/g≥	166		165	164
Insoluble  matter in ethanol % ≤	0.03		0.03	0.04
Non-saponifiable matter %≤	5		5	6
Ash %≤	0.02		0.03	0.04

Partners

Packaging & Shipping

 

Company Profile

         Hebei Chijiang Import and Export Co., Ltd. is a professional, agile and international plastics chemical supplier, specialising in the plastics and its products industry for more than 10 years, with the most complete international supply chain of plastics raw materials. We offer high quality raw materials, the most agile information on the plastics chemical market and can match you with the most suitable raw material options. Our experience, flexibility and professionalism have LED us to a large number of customers. We have delivered a wide range of different plastic chemicals safely to more than 30 countries and have customers in all regions of the world.
        Chijiang′s tenet is: To survive on quality, to be credible and to strive for excellence, and at the same time, as always, adhering to the principle of "credibility first, customer first", always put the interests of customers in the first place, and provide the best products and the best quality service for every customer with all our heart. Chijiang is committed to creating more value and benefits for global users, and to building itself into a competitive first-class enterprise through continuous improvement.

Our Advantages

OTHER PRODUCTS

 

 

FAQ

The following questions and answers can help you learn more about us:
Q1. Are you a factory or trading company?
A: We are factory with an integrated sales team, designers, and showroom. We provide comprehensive assistance to help buyers choose suitable products. All inquiries are responded to within 24 hours.
Q2. Can I get samples for testing?
A: Yes, we provide samples. Customers cover the initial shipping costs, which are reimbursed in our first cooperation.
Q3. How does your factory ensure quality control?
A: Our factory is ISO9001:2008, REACH, and FAMIQS certified, ensuring rigorous quality control. Each Batch of goods do SGS inspection before leaving our factory.
Q4. What's your Delivery Time?
A: Delivery typically takes 7 to 15 days after payment receipt. Larger orders are confirmed with our production department for prompt, quality-assured delivery.
Q5. What are your payment terms?
A: We accept T/T, Western Union, and Paypal. Alternative methods can be discussed.
Q6. Which documents do you provide?
A: Standard documents include Commercial Invoice, Price List, Packing List, COA, Origin Certificate, Quality/Quantity Certificate, Beneficiary's Certificate, MSDS, B/L, and others upon request.

Warmly welcome friends to inquire about our products. We are looking forward to establishing a mutually beneficial business relationship with you!