Air & Water Reactions Fire Hazard Health Hazard Reactivity Profile Chemical properties Uses
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Poly(vinyl alcohol)

Air & Water Reactions Fire Hazard Health Hazard Reactivity Profile Chemical properties Uses
Product Name
Poly(vinyl alcohol)
CAS No.
9002-89-5
Chemical Name
Poly(vinyl alcohol)
Synonyms
PVA;BP17;BP05;Alvyl;Covol;Lemol;NH 18;NM 11;NM 14;GH 20
CBNumber
CB7264573
Molecular Formula
C2H4O
Formula Weight
44.05256
MOL File
9002-89-5.mol
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Poly(vinyl alcohol) Property

Melting point:
>300 °C
Boiling point:
-14.5°C (rough estimate)
Density 
1.080 g/cm3
refractive index 
1.3810 (estimate)
Flash point:
79°C
storage temp. 
Store below +30°C.
solubility 
H2O: soluble (hot)
form 
Powder
color 
White to cream
PH
3.5-7.0 (40g/l, H2O, 20℃)
Water Solubility 
soluble in hot water
Merck 
14,7585
Stability:
Stable. Combustible. Dust may form explosive mixtures with air. Incompatible with strong oxidizing agents.
NIST Chemistry Reference
Polyvinyl alcohol(9002-89-5)
IARC
3 (Vol. 19, Sup 7) 1987
EPA Substance Registry System
Polyvinyl alcohol (9002-89-5)
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Safety

Hazard Codes 
Xn
Risk Statements 
23/24/25-36/38-39/23/24/25-68/20/21/22-20/21/22
Safety Statements 
26-36/37-45-24/25
WGK Germany 
1
RTECS 
TR8100000
Autoignition Temperature
450 °C
TSCA 
Yes
HS Code 
39053000
Hazardous Substances Data
9002-89-5(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 20000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H371May cause damage to organs

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.14894
Product name
Polyvinyl alcohol, fully hydrolyzed
Purity
(Mw approx. 145000) for synthesis
Packaging
100 g
Price
$25.81
Updated
2021/03/22
Sigma-Aldrich
Product number
8.43866
Product name
Polyvinyl alcohol, fully hydrolized
Purity
(Mw approx. 60000) for synthesis
Packaging
100 g
Price
$27.47
Updated
2021/03/22
Sigma-Aldrich
Product number
8.21039
Product name
Polyvinyl alcohol, fully hydrolyzed
Purity
(Mw approx. 30000) for synthesis
Packaging
100 g
Price
$29.69
Updated
2021/03/22
Sigma-Aldrich
Product number
1.14266
Product name
Polyvinyl alcohol
Purity
protective colloid for argentometric titration
Packaging
100 g
Price
$48.2
Updated
2021/03/22
Sigma-Aldrich
Product number
10849
Product name
Mowiol? 28-99
Purity
M
Packaging
250g
Price
$49
Updated
2021/03/22
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Poly(vinyl alcohol) Chemical Properties,Usage,Production

Air & Water Reactions

Water soluble.

Fire Hazard

This chemical is combustible. The dusts of this chemical are a slight explosion hazard when exposed to flame. (NTP, 1992)

Health Hazard

SYMPTOMS: Inhalation of the dust of this chemical may cause irritation of the nose and throat and cause coughing and chest discomfort if heated above 390° F. The dusts may also irritate the eyes. Implantation of this chemical into the breast has been associated with fibrosis. ACUTE/CHRONIC HAZARDS: This compound may be harmful by ingestion and inhalation. It may cause irritation. When heated to decomposition it emits acrid smoke, irritating fumes and toxic fumes of carbon monoxide and carbon dioxide. (NTP, 1992)

Reactivity Profile

Mixtures of alcohols with concentrated sulfuric acid and strong hydrogen peroxide can cause explosions. Example: an explosion will occur if dimethylbenzylcarbinol is added to 90% hydrogen peroxide then acidified with concentrated sulfuric acid. Mixtures of ethyl alcohol with concentrated hydrogen peroxide form powerful explosives. Mixtures of hydrogen peroxide and 1-phenyl-2-methyl propyl alcohol tend to explode if acidified with 70% sulfuric acid [Chem. Eng. News 45(43):73. 1967; J, Org. Chem. 28:1893. 1963]. Alkyl hypochlorites are violently explosive. They are readily obtained by reacting hypochlorous acid and alcohols either in aqueous solution or mixed aqueous- carbon tetrachloride solutions. Chlorine plus alcohols would similarly yield alkyl hypochlorites. They decompose in the cold and explode on exposure to sunlight or heat. Tertiary hypochlorites are less unstable than secondary or primary hypochlorites [NFPA 491 M 1991]. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

Chemical properties

Polyvinyl alcohol is a hydrolysis product of polyvinyl acetate, rather than by the polymerization of monomers; the molecular backbone contains . The specific gravity of this product 1.25 to 1.35 and the melting point is 212 ~ 267 ℃. It is soluble in hot water and hot dimethyl sulfoxide. Animal experiments show that polyvinyl alcohol, without stimulation, causes no significant toxicity upon subcutaneous, intramuscular, intravenous injection. Polyvinyl alcohol resin products appear as white solid with the appearance of sub-floc, granular and powder; it is non-toxic, tasteless, non-polluting and is soluble in water of 80--90 ℃. Its aqueous solution has good adhesiveness and film-forming property; it can resist most organic solvents such as oils, lubricants and hydrocarbons; it has long-chain polyol esterification, etherification, acetalization and other chemical properties.

Uses

It is mainly used in the textile industry, as the raw materials of warp pulp, fabric finishing agent, vinylon fiber; interior and exterior wall paint of the building, adhesives; chemical industry use it as a polymerization emulsifier, dispersant and polyvinyl formal, acetal, butyrate aldehyde resin; paper industry use it as a paper binder; agriculture use it as soil improvers, pesticide adhesion synergist and polyvinyl alcohol film; it can also be used for daily cosmetics and high-frequency quenching agent and so on.

Chemical Properties

white or cream solid

Chemical Properties

Polyvinyl alcohol occurs as an odorless, white to cream-colored granular powder.

Uses

In the plastics industry in molding Compounds, surface coatings, films resistant to gasoline, textile sizes and finishing compositions; can be compounded to yield elastomers to be used in manufacture of artificial sponges, fuel hoses, etc., also in printing inks for plastics and glass, in pharmaceutical finishing, cosmetics, water-sol film and sheeting. Pharmaceutic aid (viscosity increasing agent); ophthalmic lubricant.

Definition

ChEBI: A homopolymer macromolecule obtained by polymerisation of vinyl alcohol.

Production Methods

Polyvinyl alcohol is produced through the hydrolysis of polyvinyl acetate. The repeating unit of vinyl alcohol is not used as the starting material because it cannot be obtained in the quantities and purity required for polymerization purposes. The hydrolysis proceeds rapidly in methanol, ethanol, or a mixture of alcohol and methyl acetate, using alkalis or mineral acids as catalysts.

brand name

Liquifilm Tears (Allergan).

Pharmaceutical Applications

Polyvinyl alcohol is used primarily in topical pharmaceutical and ophthalmic formulations. It is used as a stabilizing agent for emulsions (0.25–3.0% w/v). Polyvinyl alcohol is also used as a viscosity-increasing agent for viscous formulations such as ophthalmic products. It is used in artificial tears and contact lens solutions for lubrication purposes, in sustained-release formulations for oral administration, and in transdermal patches. Polyvinyl alcohol may be made into microspheres when mixed with a glutaraldehyde solution.

Industrial uses

Polyvinyl alcohol is a tough, whitish polymerthat can be formed into strong films, tubes, andfibers that are highly resistant to hydrocarbonsolvents. Although polyvinyl alcohol is one ofthe few water-soluble polymers, it can be renderedinsoluble in water by drawing or by theuse of cross-linking agents.

Safety Profile

Questionable carcinogen with experimental carcinogenic and tumorigenic data by implant route. Flammable when exposed to heat or flame; can react with oxidizing materials. Slight explosion hazard in the form of dust when exposed to flame. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.

Safety

Polyvinyl alcohol is generally considered a nontoxic material. It is nonirritant to the skin and eyes at concentrations up to 10%; concentrations up to 7% are used in cosmetics.
Studies in rats have shown that polyvinyl alcohol 5% w/v aqueous solution injected subcutaneously can cause anemia and infiltrate various organs and tissues.
(mouse, oral): 14.7 g/kg
(rat, oral): >20 g/kg

storage

Polyvinyl alcohol is stable when stored in a tightly sealed container in a cool, dry place. Aqueous solutions are stable in corrosionresistant sealed containers. Preservatives may be added to the solution if extended storage is required. Polyvinyl alcohol undergoes slow degradation at 100°C and rapid degradation at 200°C; it is stable on exposure to light.

Incompatibilities

Polyvinyl alcohol undergoes reactions typical of a compound with secondary hydroxy groups, such as esterification. It decomposes in strong acids, and softens or dissolves in weak acids and alkalis. It is incompatible at high concentration with inorganic salts, especially sulfates and phosphates; precipitation of polyvinyl alcohol 5% w/v can be caused by phosphates. Gelling of polyvinyl alcohol solution may occur if borax is present.

Regulatory Status

Included in the FDA Inactive Ingredients Database (ophthalmic preparations and oral tablets). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

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Poly(vinyl alcohol) Suppliers

Shanxi Sanwei Shengtai New Material Technology Co., Ltd.
Tel
0357-6560278-
Fax
0357-6560278
Email
sxshengtai@126.com
Country
China
ProdList
1
Advantage
58
Spectrum Chemical Manufacturing Corp.
Tel
021-67601398-809
Fax
021-57711696
Email
marketing_china@spectrumchemical.com;
Country
China
ProdList
9686
Advantage
60
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
021-20337333-801
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
24980
Advantage
65
Hefei TNJ Chemical Industry Co.,Ltd.
Tel
551-65418679- ;551-65418679-
Fax
0551-65418697
Email
info@tnjchem.com;sales@tnjchem.com
Country
China
ProdList
1895
Advantage
62
Shanghai Macklin Biochemical Co.,Ltd.
Tel
Fax
021-50706099
Email
shenlinxing@macklin.cn
Country
China
ProdList
15908
Advantage
55
Zhongshan Wanyuan New Drug Research Co., Ltd.
Tel
Email
heran_wang@whpt.com.cn
Country
China
ProdList
14
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Fax
86-21-61259102
Email
sh@meryer.com
Country
China
ProdList
40264
Advantage
62
future industrial shanghai co., ltd
Tel
400-0066-400;021-60496031
Fax
021-55660885
Email
sales@jonln.com;sales@jonln.com
Country
China
ProdList
1999
Advantage
65
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30159
Advantage
84
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View Lastest Price from Poly(vinyl alcohol) manufacturers

Wuhan wingroup Pharmaceutical Co., Ltd
Product
Poly(vinyl alcohol) 9002-89-5
Price
US $5.00/KG
Min. Order
50g
Purity
99
Supply Ability
20 tons
Release date
2021-07-07
Shijiazhuang tongyang Import and Export Co., LTD
Product
Poly(vinyl alcohol) 9002-89-5
Price
US $15.00/KG
Min. Order
1g
Purity
99
Supply Ability
50ton
Release date
2021-08-13
Hebei Henghe Import and Export Trading Co. LTD
Product
Emulsion PVA Chemical Powder Finest-Quality 9002-89-5
Price
US $1100.00/KG
Min. Order
500KG
Purity
99%
Supply Ability
5000
Release date
2021-07-23

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