Calcium carbide


Calcium carbide, also known as calcium acetylide, is a chemical compound with the chemical formula of CaC2. Its main use industrially is in the production of acetylene and calcium cyanamide.The pure material is colorless, however pieces of technical-grade calcium carbide are grey or brown and consist of about 80–85% of CaC2 (the rest is CaO (calcium oxide), Ca3P2 (calcium phosphide), CaS (calcium sulfide), Ca3N2 (calcium nitride), SiC (silicon carbide), etc.). In the presence of trace moisture, technical-grade calcium carbide emits an unpleasant odor reminiscent of garlic.Applications of calcium carbide include manufacture of acetylene gas, and for generation of acetylene in carbide lamps; manufacture of chemicals for fertilizer; and in steelmaking. Wikipedia

Substance Data

Source: TOXNET (HSDB, 27.03.2019)

CAS-Number

75-20-7

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 138

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

4.3
Dangerous when wet materials

(4) Identification number Help

UN 1402

(5) Packing Group Help

I

(6) Labels Help

Dangerous when wet materials (4.3) Cargo Aircraft Only (Cargo Aircraft Only)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
A1
A8
B55
B59
IB4
IP1
N34
T9
TP7
TP33
W32

(8) Packing Authorizations (§173.***) Help

(8A) ExceptionsNone
(8B) Non-bulk211see 49 CFR §173.211
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/railForbidden
(9B) Cargo aircraft only15 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

(3) Hazard Class

4.3
Dangerous when wet materials

(4) Identification number Help

UN 1402

(5) Packing Group Help

II

(6) Labels Help

Dangerous when wet materials (4.3)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
A1
A8
B55
B59
IB7
IP2
IP21
N34
T3
TP33
W31
W40

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions151see 49 CFR §173.151
(8B) Non-bulk212see 49 CFR §173.212
(8C) Bulk241see 49 CFR §173.241

(9) Quantity Limits Help

(9A) Passenger aircraft/rail15 kg
(9B) Cargo aircraft only50 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

Comparison View of Different Packing Groups

More than one packing group is indicated for this entry. Criteria for assignment see 49 CFR §173 Subpart D. You can find specific details in the tabs above. Differences are highlighted.

PG I PG II
1
2Calcium carbideCalcium carbide
34.34.3
4UN 1402UN 1402
5III
64.34.3
7A1, A8, B55, B59, IB4, IP1, N34, T9, TP7, TP33, W32A1, A8, B55, B59, IB7, IP2, IP21, N34, T3, TP33, W31, W40
8ANone151
8B211212
8C242241
9AForbidden15 kg
9B15 kg50 kg
10ABB
10B13, 52, 14813, 52, 148

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

red May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
green Load, transport, storage together is not restricted.
yellow Load, transport, storage together is allowed under restrictions.

Substances with similar name

UN-NumberNameHazard Class
UN 1401Calcium4.3
UN 1855Calcium, pyrophoric or Calcium alloys, pyrophoric4.2
UN 1573Calcium arsenate6.1
UN 1574Calcium arsenate and calcium arsenite, mixtures, solid6.1
Calcium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.
UN 1402Calcium carbide4.3
UN 1403Calcium cyanamide with more than 0.1 percent of calcium carbide4.3
UN 1923Calcium dithionite or Calcium hydrosulfite4.2
Calcium hydrosulfite, see Calcium dithionite
UN 3485Calcium hypochlorite, dry, corrosive or Calcium hypochlorite mixture, dry, corrosive with more than 39% available chlorine (8.8% available oxygen)5.1
UN 1748Calcium hypochlorite, dry or Calcium hypochlorite mixture dry with more than 39% available chlorine (8.8% available oxygen)5.1
UN 2880Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixture, with not less than 5.5% but not more than 16% water5.1
UN 3486Calcium hypochlorite mixture, dry, corrosive with more than 10% but not more than 39% available chlorine5.1
UN 2208Calcium hypochlorite mixture, dry, with more than 10% but not more than 39% available chlorine5.1
UN 2844Calcium manganese silicon4.3
UN 1910Calcium oxide8
UN 1455Calcium perchlorate5.1
UN 1456Calcium permanganate5.1
UN 1360Calcium phosphide4.3
UN 1314Calcium resinate, fused4.1
UN 2907Isosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphate4.1
Quicklime, see Calcium oxide