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1,3,5-trioxane

1,3,5-trioxane
1,3,5-trioxane structure
CAS No.
110-88-3
Chemical Name:
1,3,5-trioxane
Synonyms
Trioxan;Trioxin;Trioxane;Aldeform;Marvosan;s-Trixane;s-Tioxane;S-TRIOXAN;TRIFORMOL;Paraformal
CBNumber:
CB5763739
Molecular Formula:
C3H6O3
Formula Weight:
90.08
MOL File:
110-88-3.mol

1,3,5-trioxane Properties

Melting point:
59-62 °C(lit.)
Boiling point:
112-115 °C
Density 
1.17
vapor pressure 
7.5 hPa (20 °C)
refractive index 
1.4168 (estimate)
Flash point:
113 °F
storage temp. 
Flammables area
solubility 
221g/l
form 
Crystals or Crystalline Flakes
color 
Colorless to white
explosive limit
3.6-28.7%(V)
Water Solubility 
221 g/L (25 ºC)
Sublimation 
115 ºC
Merck 
14,9734
BRN 
102769
InChIKey
BGJSXRVXTHVRSN-UHFFFAOYSA-N
CAS DataBase Reference
110-88-3(CAS DataBase Reference)
NIST Chemistry Reference
1,3,5-Trioxane(110-88-3)
EPA Substance Registry System
1,3,5-Trioxane(110-88-3)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
  • NFPA
Hazard Codes  F,Xn
Risk Statements  11-37-63
Safety Statements  36/37-46
RIDADR  UN 1325 4.1/PG 2
WGK Germany  1
RTECS  YK0350000
Autoignition Temperature 777 °F
TSCA  Yes
HS Code  2912 50 00
HazardClass  4.1
PackingGroup  III
Hazardous Substances Data 110-88-3(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 8190 mg/kg LD50 dermal Rabbit > 3980 mg/kg
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
Danger
Warning
P210, P240,P241, P280, P370+P378
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P281 Use personal protective equipment as required.
P405 Store locked up.

NFPA 704

Diamond Hazard Value Description
2
0
Health  
Flammability   2 Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur and multiple finely divided suspended solids that do not require heating before ignition can occur. Flash point between 37.8 and 93.3 °C (100 and 200 °F). (e.g. diesel fuel, sulfur)
Instability   0 Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)
Special  

(NFPA, 2010)

1,3,5-trioxane price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T81108 1,3,5-Trioxane ≥99% 110-88-3 25g $18.6 2018-11-13 Buy
Sigma-Aldrich T81108 1,3,5-Trioxane ≥99% 110-88-3 2kg $79.2 2018-11-13 Buy
TCI Chemical T0505 1,3,5-Trioxane >99.0%(GC) 110-88-3 25g $9 2018-11-22 Buy
TCI Chemical T0505 1,3,5-Trioxane >99.0%(GC) 110-88-3 500g $33 2018-11-22 Buy
Alfa Aesar A15639 1,3,5-Trioxane, 98% 110-88-3 250g $30 2018-11-13 Buy

1,3,5-trioxane Chemical Properties,Uses,Production

Chemical Properties

Trioxane is a most unusual chemical. It is an excellent solvent for many classes of materials. Concentrated aqueous solutions of trioxane have solvent properties which are not possessed by trioxane itself. Molten trioxane dissolves numerous organic compounds, such as naphthalene, urea, camphor, dichlorobenzene, etc. It is stable in alkaline or neutral solutions, yet it is depolymerized to formaldehyde by small amounts of strong acid or acid-forming materials, and the rate of depolymerization can be readily controlled.

Chemical Properties

Paraformaldehyde is a white crystalline solid. Irritating odor. The term “trioxane” applies specifically to this trimer (CH2O)3 but paraformaldehyde is applied both to trioxane and other low polymers or oligomers of formaldehyde.

Uses

1,3,5-Trioxane is used in organic chemical processes such as aldol condensation of amides and syntheses of chloromethyl esters or other plastics.

Definition

ChEBI: A saturated organic heteromonocyclic parent that is cyclohexane in which the carbon atoms at positions 1, 3 and 5 are replaced by oxygen atoms.

General Description

Transparent crystals or white crystalline solid with a pleasant odor resembling the odor of chloroform. Melts at 62°C; boils at 115°C without polymerization. The cyclic trimer of formaldehyde.

Air & Water Reactions

Highly flammable. Water soluble.

Reactivity Profile

s-Trioxane is stable under normal laboratory conditions but is unstable in the presence of acids, which initiate polymerization. Sublimes readily. May react with oxidizing matter . A stable polymeric product of formaldehyde that in the presence of strong aqueous acids will depolymerize (reforming the parent formaldehyde). Inert to strong alkalis. Readily converted in non aqueous solutions to the monomeric formaldehyde by small concentrations of acid---the rate of conversion is directly proportional to the concentration of the acid.

Health Hazard

ACUTE/CHRONIC HAZARDS: s-Trioxane is toxic and flammable. It can emit toxic fumes on contact with acid or acid fumes.

Fire Hazard

s-Trioxane is combustible.

Safety Profile

Mutation data reported. Can evolve toxic formaldehyde fumes when heated strongly or in contact with strong acids or acid fumes. Flammable liquid when exposed to heat, flame, or oxidzers. May explode when heated. Explosive in the form of vapor when exposed to heat or flame. Explodes on impact, possibly due to peroxide contamination. Mixtures with hydrogen peroxide are explosives sensitive to heat, shock, or contact with lead. Mixtures with liquid oxygen are highly explosive. Incompatible with oxidizing materials. To fight fire, use foam, CO2, or dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also FORMALDEHYDE.

Potential Exposure

Paraformaldehyde is used in polyacetal resin manufacture; as a food additive; and as an odorless fuel.

Shipping

UN2213 Paraformaldehyde, Hazard Class: 4.1; Labels: 4.1-Flammable solid.

Purification Methods

Crystallise 1,3,4-trioxane from sodium-dried diethyl ether or water, and dry it over CaCl2. It can also be purified by zone refining. [Beilstein 19 H 381, 19 II 392, 19 III/IV 4710, 19/9 V 103.]

Incompatibilities

Paraformaldehyde dust forms an explosive mixture with air. Decomposes on contact with oxidizers, strong acids; acid fumes; and bases; with elevated temperatures, forming formaldehyde. May explode when heated. May explode on impact if peroxide contamination develops. Mixtures with hydrogen peroxide or liquid oxygen are explosives sensitive to heat, shock, or contact with lead.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

1,3,5-trioxane Preparation Products And Raw materials

Raw materials

Preparation Products


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1,3,5-trioxane Spectrum


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